Guia Usuario Digistart IS

Guia Usuario Digistart IS
User Guide
Digistart IS
Soft starters for 3 phase
induction motors
7.5 to 800kW (23A to 1600A)
200V, 400V, 575V, 690V
Part Number: 0477-0001-02
Issue: 2
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General information
The manufacturer accepts no liability for any consequences resulting from inappropriate, negligent or incorrect installation or
adjustment of the optional parameters of the equipment or from mismatching the starter with the motor.
The contents of this guide are believed to be correct at the time of printing. In the interests of commitment to a policy of continuous
development and improvement, the manufacturer reserves the right to change the specification of the product or its performance, or
the content of the guide without notice.
All rights reserved. No parts of this guide may be reproduced or transmitted in any form or by any means, electrical or mechanical
including, photocopying, recording or by an information storage or retrieval system, without permission in writing from the publisher.
Software version
This product is supplied with the latest version of user-interface and machine control software. If this product is to be used in a new
or existing system with other starters, there may be some differences between their software and the software in this product. These
differences may cause the product to function differently. This may also apply to starters returned from the Control Techniques
Service Centre.
If there is any doubt, please contact Control Techniques or your local Distributor.
Environmental statement
Control Techniques is committed to minimising the environmental impacts of its manufacturing operations and of its products
throughout their life cycle. To this end, we operate an Environmental Management System (EMS) which is certified to the
International Standard ISO 14001. Further information on the EMS, our Environment Policy and other relevant information is
available on request.
When the products eventually reach the end of their useful life, they can very easily be dismantled into their major component parts
for efficient recycling. Many parts snap together and can be separated without the use of tools, while other parts are secured with
conventional screws. Virtually all parts of the product are suitable for recycling.
Product packaging is of good quality and can be re-used. Large products are packed in wooden crates, while smaller products come
in strong cardboard cartons which themselves have a high recycled fibre content. If not re-used, these containers can be recycled.
Polythene, used on the protective film and bags from wrapping product, can be recycled in the same way. Control Techniques's
packaging strategy favours easily recyclable materials of low environmental impact, and regular reviews identify opportunities for
improvement.
When preparing to recycle or dispose of any product or packaging, please observe local legislation and best practice.
REACH legislation
EC Regulation 1907/2006 on the Registration, Evaluation, Authorisation and restriction of Chemicals (REACH) requires the supplier
of an article to inform the recipient if it contains more than a specified proportion of any substance which is considered by the
European Chemicals Agency (ECHA) to be a Substance of Very High Concern (SVHC) and is therefore listed by them as a
candidate for compulsory authorisation.
For current information on how this requirement applies in relation to specific Control Techniques products, please approach your
usual contact in the first instance. Control Techniques position statement can be viewed at:
www.controltechniques.com/REACH
Copyright © September 2009 Control Techniques Ltd
Issue Number: 2
Product Version: 1
Contents
1. Safety Information ............................................................................................................................................ 5 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Warnings, cautions and notes .................................................................................................................................................... 5 Electrical safety - general warning ............................................................................................................................................. 5 System design and safety of personnel ..................................................................................................................................... 5 Environmental limits ................................................................................................................................................................... 5 Compliance with regulations ...................................................................................................................................................... 5 Motor .......................................................................................................................................................................................... 5 Adjusting parameters ................................................................................................................................................................. 5 Electrical installation................................................................................................................................................................... 6 2. Rating Data ........................................................................................................................................................ 7 2.1 2.2 Model code................................................................................................................................................................................. 7 Current ratings ........................................................................................................................................................................... 7 3. Mechanical Installation ................................................................................................................................... 10 3.1 3.2 3.3 Dimensions and weights .......................................................................................................................................................... 10 Physical installation .................................................................................................................................................................. 11 Busbar adjustment procedure .................................................................................................................................................. 11 4. Electrical Installation ...................................................................................................................................... 13 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 Terminal layout......................................................................................................................................................................... 13 Control connections ................................................................................................................................................................. 17 Power connections ................................................................................................................................................................... 18 Fuses ....................................................................................................................................................................................... 21 Bypass contactor...................................................................................................................................................................... 24 Main contactor.......................................................................................................................................................................... 24 Circuit breaker .......................................................................................................................................................................... 24 Power factor correction ............................................................................................................................................................ 24 EMC (Electromagnetic compatibility) ....................................................................................................................................... 24 5. Keypad and Status.......................................................................................................................................... 26 5.1 5.2 5.3 5.4 Keypad ..................................................................................................................................................................................... 26 Removing and replacing the keypad ........................................................................................................................................ 26 Synchronising the keypad and the starter ................................................................................................................................ 27 Displays.................................................................................................................................................................................... 27 6. Operation ......................................................................................................................................................... 29 6.1 6.2 6.3 6.4 6.5 Start, stop and reset commands .............................................................................................................................................. 29 Soft start methods .................................................................................................................................................................... 29 Stop methods ........................................................................................................................................................................... 32 Jog operation ........................................................................................................................................................................... 35 Inside delta operation ............................................................................................................................................................... 36 7. Programming Menu ........................................................................................................................................ 37 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 Programming menu.................................................................................................................................................................. 37 Access code ............................................................................................................................................................................. 37 Adjustment lock ........................................................................................................................................................................ 38 Quick setup details ................................................................................................................................................................... 38 Standard menu......................................................................................................................................................................... 39 Advanced menu ....................................................................................................................................................................... 40 Parameter descriptions ............................................................................................................................................................ 44 Maintenance tools .................................................................................................................................................................... 57 8. Quick Start Commissioning ........................................................................................................................... 62 8.1 8.2 Control wiring ........................................................................................................................................................................... 62 Setup procedure....................................................................................................................................................................... 62 9. Diagnostics...................................................................................................................................................... 63 9.1 9.2 9.3 Protection responses ............................................................................................................................................................... 63 Trip messages.......................................................................................................................................................................... 63 General faults ........................................................................................................................................................................... 65 10. Application Examples ..................................................................................................................................... 67 Digistart IS User Guide
Issue Number: 2
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3
10.1 10.2 10.3 10.4 10.5 10.6 10.7 Installation with main contactor ................................................................................................................................................ 67 Installation with bypass contactor ............................................................................................................................................ 68 Emergency run operation ......................................................................................................................................................... 69 Auxiliary trip circuit ................................................................................................................................................................... 70 Soft braking .............................................................................................................................................................................. 71 Two-speed motor ..................................................................................................................................................................... 72 Slip-ring motor .......................................................................................................................................................................... 73 11. Technical Data................................................................................................................................................. 74 12. Maintenance .................................................................................................................................................... 76 12.1 12.2 12.3 12.4 12.5 Care ......................................................................................................................................................................................... 76 Measuring the motor current .................................................................................................................................................... 76 Measuring the input and output power ..................................................................................................................................... 76 Spare parts list ......................................................................................................................................................................... 76 Exchanging products................................................................................................................................................................ 76 13. Options ............................................................................................................................................................ 77 4
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Digistart IS User Guide
Issue Number: 2
Safety
Rating Mechanical Electrical Keypad and Operation Programming
Quick Start
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Information Data
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Status
Menu
Commissioning
Examples
Data
1.
Safety Information
1.1
Warnings, cautions and notes
A Warning contains information which is essential for avoiding a safety hazard.
WARNING
A Caution contains information which is necessary for avoiding a risk of damage to the product or other equipment.
CAUTION
NOTE
1.2
A Note contains information which helps to ensure correct operation of the product.
Electrical safety - general warning
The voltages used in the starter can cause severe electrical shock and/or burns, and could be lethal. Extreme care is necessary at
all times when working with or adjacent to the starter.
Specific warnings are given at the relevant places in this guide.
1.3
System design and safety of personnel
The starter is intended as a component for professional incorporation into complete equipment or a system. If installed incorrectly,
the starter may present a safety hazard.
The starter uses high voltages and currents, carries stored electrical energy, and is used to control equipment which can cause
injury.
Close attention is required to the electrical installation and the system design to avoid hazards either in normal operation or in the
event of equipment malfunction. System design, installation, commissioning and maintenance must be carried out by personnel who
have the necessary training and experience. They must read this safety information and this guide carefully.
The STOP function of the starter does not isolate dangerous voltages from the output of the starter or from any external option unit.
The supply must be disconnected by an approved electrical isolation device before gaining access to the electrical connections.
None of the starter functions must be used to ensure safety of personnel, i.e. they must not be used for safety-related
functions.
Careful consideration must be given to the functions of the starter which might result in a hazard, either through their intended
behaviour or through incorrect operation due to a fault. In any application where a malfunction of the starter or its control system
could lead to or allow damage, loss or injury, a risk analysis must be carried out, and where necessary, further measures taken to
reduce the risk.
The system designer is responsible for ensuring that the complete system is safe and designed correctly according to the relevant
safety standards.
1.4
Environmental limits
Instructions regarding transport, storage, installation and use of the starter must be complied with, including the specified
environmental limits. Starters must not be subjected to excessive physical force.
1.5
Compliance with regulations
The installer is responsible for complying with all relevant regulations, such as national wiring regulations, accident prevention
regulations and electromagnetic compatibility (EMC) regulations. Particular attention must be given to the cross-sectional areas of
conductors, the selection of fuses or other protection, and protective ground connections.
Within the European Union, all machinery in which this product is used must comply with the following directives:
98/37/EC: Safety of machinery.
2004/108/EC: Electromagnetic Compatibility.
1.6
Motor
Ensure the motor is installed in accordance with the manufacturer’s recommendations. Ensure the motor shaft is not exposed.
The values of the motor parameters set in the starter affect the protection of the motor. The default values in the starter should not
be relied upon. It is essential that the correct value is entered in Pr 1A Motor Full Load Current. This affects the thermal protection of
the motor.
1.7
Adjusting parameters
Some parameters have a profound effect on the operation of the starter. They must not be altered without careful consideration of
the impact on the controlled system. Measures must be taken to prevent unwanted changes due to error or tampering.
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1.8
Electrical installation
1.8.1
Electrical shock risk
The voltages present in the following locations can cause severe electric shock and may be lethal:

AC supply cables and connections

Output cables and connections

Many internal parts of the starter, and external option units
The AC supply must be disconnected from the starter using an approved isolation device before any cover is removed from the
starter or before any servicing work is performed.
The busbar and heatsink on models IS4x0360N to IS561600N are live while the unit is operating (starting, running or stopping). If
the starter is installed without a main contactor, the busbar and heatsink are live whenever mains voltage is connected (including
when the starter is ready or tripped).
1.8.2
Power-up procedure
Always apply control voltage before (or with) mains voltage.
IS1x0023B to IS2x0220B: After transportation, mechanical shock or rough handling there is a possibility that the bypass contactor
may have latched into the on state. To prevent the possibility of the motor starting immediately, on first commissioning or operation
after transportation, always ensure that the control supply is applied before the power, so that the contactor state is initialised.
1.8.3
STOP function
The STOP function does not remove dangerous voltages from the starter, the motor or any external option units.
1.8.4
Stored charge
The starter contains capacitors that remain charged to a potentially dangerous voltage after the AC supply has been disconnected.
If the starter has been energised, the AC supply must be isolated at least two minutes before work may continue.
Normally, the capacitors are discharged by an internal resistor. Under certain, unusual fault conditions, the capacitors may fail to
discharge. Do not assume that the capacitors have discharged. To protect the user and the equipment, take due care when carrying
out any work on the starter.
1.8.5
Equipment supplied by plug and socket
The control supply terminals of the starter are connected to the internal capacitors through rectifier diodes which are not intended to
give safety isolation. If the plug terminals can be touched when the plug is disconnected from the socket, a means of automatically
isolating the plug from the starter must be used (e.g. a latching relay).
1.8.6
Short circuit
Digistart IS soft starters are not short circuit proof. After severe overload or short circuit, the operation of the soft starter should be
fully tested by an authorised service agent.
1.8.7
Auto-start
Use the auto-start feature with caution. Read all the notes related to auto-start before operation.
6
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2.
Rating Data
2.1
Model code
Figure 2-1 Model code explanation
IS
3
4
0
2
5
5
N
Bypass
B = Internal
N = Non-bypassed
Nominal current rating
Mains voltage
4 = 200 to 440 Vac
6 = 380 to 690 Vac
Frame size
2.2
Current ratings
Contact your local supplier for ratings under operating conditions not covered by these ratings charts.
2.2.1
Current ratings for bypass operation
AC53b utilisation code
The AC53b utilisation code defines the current rating and standard operating conditions for a bypassed soft starter (internally
bypassed, or installed with an external bypass contactor).
The soft starter’s current rating determines the maximum motor size it can be used with. The soft starter's rating depends on the
number of starts per hour, the length and current level of the start, and the amount of time the soft starter will be off (not passing
current) between starts.
The soft starter’s current rating is only valid when used within the conditions specified in the utilisation code. The soft starter may
have a higher or lower current rating in different operating conditions.
Figure 2-2 AC53b utilisation code
80 A
:
AC-53b
3.5
-
15
:
345
Off time (seconds)
Start time (seconds)
Start current (multiple of motor full load current)
Starter current rating (amperes)
Starter current rating: The full load current rating of the soft starter given the parameters detailed in the remaining sections of the
utilisation code.
Start current: The maximum available start current.
Start time: The maximum allowable start time.
Off time: The minimum allowable time between the end of one start and the beginning of the next start.
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Table 2-1 Current ratings - in-line connection, bypassed operation
Model
IS1x0023B
IS1x0043B
IS1x0053B
Model
IS1x0076B
IS1x0097B
IS1x0105B
IS2x0145B
IS2x0170B
IS2x0200B
IS2x0220B
IS3x0255N
IS4x0360N
IS4x0430N
IS4x0650N
IS4x0790N
IS4x0930N
IS561200N
IS561410N
IS561600N
AC53b 3.0-10:350
40 ºC <1000 metres
AC53b 3.5-15:345
40 ºC <1000 metres
AC53b 4.0-20:340
40 ºC <1000 metres
AC53b 4.5-30:330
40 ºC <1000 metres
23 A
43 A
53 A
AC53b 3.0-10:590
40 ºC <1000 metres
76 A
97 A
105 A
145 A
170 A
200 A
220 A
255 A
360 A
430 A
650 A
790 A
930 A
1200 A
1410 A
1600 A
20 A
37 A
53 A
AC53b 3.5-15:585
40 ºC <1000 metres
64 A
82 A
105 A
123 A
145 A
189 A
210 A
231 A
360 A
430 A
650 A
790 A
930 A
1200 A
1410 A
1600 A
17 A
31 A
46 A
AC53b 4.0-20:580
40 ºC <1000 metres
55 A
69 A
95 A
106 A
121 A
160 A
178 A
201 A
310 A
368 A
561 A
714 A
829 A
1200 A
1319 A
1600 A
15 A
26 A
37 A
AC53b 4.5-30:570
40 ºC <1000 metres
47 A
58 A
78 A
90 A
97 A
134 A
148 A
176 A
263 A
309 A
455 A
579 A
661 A
1071 A
1114 A
1353 A
Models IS3x0255N to IS561600N must be externally bypassed.
NOTE
Table 2-2 Current ratings - inside delta connection, bypassed operation
Model
IS1x0023B
IS1x0043B
IS1x0053B
Model
IS1x0076B
IS1x0097B
IS1x0105B
IS2x0145B
IS2x0170B
IS2x0200B
IS2x0220B
IS3x0255N
IS4x0360N
IS4x0430N
IS4x0650N
IS4x0790N
IS4x0930N
IS561200N
IS561410N
IS561600N
8
AC53b 3.0-10:350
40 ºC <1000 metres
AC53b 3.5-15:345
40 ºC <1000 metres
AC53b 4.0-20:340
40 ºC <1000 metres
AC53b 4.5-30:330
40 ºC <1000 metres
35 A
65 A
80 A
AC53b 3.0-10:590
40 ºC <1000 metres
114 A
146 A
158 A
218 A
255 A
300 A
330 A
383 A
540 A
645 A
975 A
1185 A
1395 A
1800 A
2115 A
2400 A
30 A
59 A
80 A
AC53b 3.5-15:585
40 ºC <1000 metres
96 A
123 A
158 A
184 A
217 A
283 A
315 A
346 A
540 A
645 A
975 A
1185 A
1395 A
1800 A
2115 A
2400 A
26 A
51 A
69 A
AC53b 4.0-20:580
40 ºC <1000 metres
83 A
104 A
143 A
159 A
181 A
241 A
268 A
302 A
465 A
552 A
842 A
1071 A
1244 A
1800 A
1979 A
2400 A
22 A
44 A
55 A
AC53b 4.5-30:570
40 ºC <1000 metres
70 A
87 A
117 A
136 A
146 A
200 A
223 A
264 A
395 A
464 A
683 A
868 A
992 A
1606 A
1671 A
2030 A
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2.2.2
Current ratings for continuous operation (not bypassed)
AC53a utilisation code
The AC53a Utilisation Code defines the current rating and standard operating conditions for a non-bypassed soft starter.
The soft starter’s current rating determines the maximum motor size it can be used with. The soft starter's rating depends on the
number of starts per hour, the length and current level of the start, and the percentage of the operating cycle that the soft starter will
be running (passing current).
The soft starter’s current rating is only valid when used within the conditions specified in the utilisation code. The soft starter may
have a higher or lower current rating in different operating conditions.
Figure 2-3 AC53a utilisation code
351 A
:
AC-53a
3.5
-
15
:
50
-
6
Starts per hour
On-load duty cycle (%)
Start time (seconds)
Start current (multiple of motor full load current)
Starter current rating (amperes)
Starter current rating: The full load current rating of the soft starter given the parameters detailed in the remaining sections of the
utilisation code.
Start current: The maximum available start current.
Start time: The maximum allowable start time.
On-load duty cycle: The maximum percentage of each operating cycle that the soft starter can operate.
Starts per hour: The maximum allowable number of starts per hour.
Table 2-3 Current ratings - in-line connection, non-bypassed operation
Model
IS3x0255N
IS4x0360N
IS4x0430N
IS4x0650N
IS4x0790N
IS4x0930N
IS561200N
IS561410N
IS561600N
AC53a 3-10:50-6
40 ºC <1000 metres
AC53a 3.5-15:50-6
40 ºC <1000 metres
AC53a 4-20:50-6
40 ºC <1000 metres
AC53a 4.5-30:50-6
40 ºC <1000 metres
255 A
360 A
430 A
650 A
790 A
930 A
1200 A
1410 A
1600 A
222 A
351 A
413 A
629 A
790 A
930 A
1200 A
1355 A
1600 A
195 A
303 A
355 A
532 A
694 A
800 A
1135 A
1187 A
1433 A
171 A
259 A
301 A
437 A
567 A
644 A
983 A
1023 A
1227 A
Table 2-4 Current ratings - inside delta connection, non-bypassed operation
Model
IS3x0255N
IS4x0360N
IS4x0430N
IS4x0650N
IS4x0790N
IS4x0930N
IS561200N
IS561410N
IS561600N
Digistart IS User Guide
Issue Number: 2
AC53a 3-10:50-6
40 ºC <1000 metres
AC53a 3.5-15:50-6
40 ºC <1000 metres
AC53a 4-20:50-6
40 ºC <1000 metres
AC53a 4.5-30:50-6
40 ºC <1000 metres
383 A
540 A
645 A
975 A
1185 A
1395 A
1800 A
2115 A
2400 A
334 A
527 A
620 A
943 A
1185 A
1395 A
1800 A
2033 A
2400 A
293 A
455 A
533 A
798 A
1041 A
1200 A
1702 A
1780 A
2149 A
257 A
388 A
451 A
656 A
850 A
966 A
1474 A
1535 A
1840 A
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Mechanical Installation
Digistart IS models IS2x0145B to IS561600N weigh in excess of 15 kg (33 lb). Use appropriate safeguards when lifting
these models.
WARNING
Models IS2x0145B to IS561600N are intended to be mounted in an enclosure which prevents access except by trained
and authorised personnel, and which prevents the ingress of contamination. The complete range is designed for use in
an environment classified as Pollution Degree 3 in accordance with IEC60664-1. This means conductive pollution or
dry, non-conductive pollution which becomes conductive due to condensation is acceptable.
WARNING
Models IS2x0145B to IS2x0220B can be installed with optional finger guards, in which case they do not need to be
mounted in an enclosure.
3.1
Dimensions and weights
Figure 3-1 Unit dimensions
A
H
E
B
I
A
E
B
D
C
C
C
D
F
08337.B
G
Model
IS1x0023B
IS1x0043B
IS1x0053B
IS1x0076B
IS1x0097B
IS1x0105B
A
mm
(in)
B
mm
(in)
C
mm
(in)
D
mm
(in)
E
mm
(in)
F
mm
(in)
G
mm
(in)
H
mm
(in)
I
mm
(in)
Weight
kg
(lb)
156.4
(6.16)
124.0
(4.88)
294.6
(11.60)
278.0
(10.94)
196.2
(7.72)
n/a
n/a
n/a
n/a
3.2
(7.05)
156.4
(6.16)
124.0
(4.88)
294.6
(11.60)
278.0
(10.94)
226.7
(8.92)
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
3.5 (7.22)
4.8
(10.58)
282
(11.10)
250
(9.84)
438
(17.24)
380
(14.96)
254
(10.00)
n/a
n/a
n/a
n/a
16
(35.27)
394
(15.51)
430
(16.93)
430
(16.93)
320
(12.60)
320
(12.60)
320
(12.60)
460
(18.11)
556
(21.89)
556
(21.89)
400
(15.75)
522
(20.55)
522
(20.55)
284
(11.18)
302
(11.89)
302
(11.89)
n/a
n/a
n/a
n/a
25 (55.12)
5.5
(0.22)
5.5
(0.22)
104.5
(4.11)
104.5
(4.11)
104.5
(4.11)
104.5
(4.11)
5.5
(0.22)
5.5
(0.22)
50.5
(111.33)
53.5
(117.95)
574
(22.60)
500
(19.69)
750
(29.53)
727
(28.62)
364
(14.33)
8.5
(0.33)
132.5
(5.22)
129
(5.08)
5
(0.20)
140
(308.65)
IS2x0145B
IS2x0170B
IS2x0200B
IS2x0220B
IS3x0255N
IS4x0360N
IS4x0430N
IS4x0650N
IS4x0790N
IS4x0930N
IS561200N
IS561410N
IS561600N
NOTE
10
Dimensions F, G, H and I are the additional space required for the output and input busbars, in addition to the overall
chassis measurement (C).
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Figure 3-2 Mounting clearances
1
2
4
08338.A
3
1
2
3
4
3.3
IS1x0023B to IS3x0255N: Allow 100 mm (3.94 in) between soft starters.
IS4x0360N to IS561600N: Allow 200 mm (7.88 in) between soft starters.
IS1x0023B to IS2x0220B: Allow 50 mm (1.97 in) between the soft starter and solid surfaces.
IS3x0255N: Allow 100 mm (3.94 in) between the soft starter and solid surfaces.
IS4x0360N to IS561600N: Allow 200 mm (7.88 in) between the soft starter and solid surfaces.
Soft starters may be mounted side by side with no clearance.
The soft starter may be mounted on its side. Derate the soft starter's rated current by 15%.
Busbar adjustment procedure
The busbars on models IS4x0360N to IS561600N can be adjusted for top or bottom input and output as required.
NOTE
Many electronic components are sensitive to static electricity. Voltages so low that they cannot be felt, seen or heard,
can reduce the life, affect performance, or completely destroy sensitive electronic components. When performing
service, proper ESD equipment should be used to prevent possible damage from occurring.
08604.A
All units are manufactured with input and output busbars at the bottom of the unit as standard. The input and/or output busbars can
be moved to the top of the unit if required.
1. Remove all wiring and links from the soft starter before
dismantling the unit.
2. Remove the unit cover (4 screws).
3. Remove the keypad faceplate, then gently remove the
keypad (2 screws).
4. Remove the control terminal plugs.
5. Gently fold the main plastic away from the starter (12
screws).
6. Unplug the keypad loom from CON 1 (see note).
7. Label each SCR firing loom with the number of the
corresponding terminal on the backplane PCB, then unplug
the looms.
8. Unplug the thermistor, fan and current transformer wires
from the model board.
9. Remove the plastic tray from the starter (four screws).
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NOTE
Remove the main plastic slowly to avoid damaging the keypad wiring loom which runs between the main plastic and the
backplane PCB.
08605.A
10. Unscrew and remove the magnetic bypass plates (models
IS4x0430N to IS561600N only).
11. Remove the current transformer assembly (three screws).
12. Identify which busbars are to be moved. Remove the bolts
holding these busbars in place then slide the busbars out
through the bottom of the starter (four bolts per busbar).
08606.A
13. Slide the busbars in through the top of the starter. For input
busbars, the short curved end should be outside the
starter. For output busbars, the unthreaded hole should be
outside the starter.
14. Replace the dome washers with the flat face towards the
busbar, then tighten the bolts holding the busbars in place
to 20 Nm.
15. Place the current transformer assembly over the input
busbars and screw the assembly to the body of the starter
(see note).
16. Run all wiring to the side of the starter and secure with
cable ties.Run all wiring to the side of the starter and
secure with cable ties.
NOTE
If moving the input busbars, the current transformers (CTs) must also be reconfigured.
1.
2.
Label the CTs L1, L2 and L3 (L1 is leftmost when looking from the front of the starter). Remove the cable ties and
unscrew the CTs from the bracket.
Move the CT bracket to the top of the starter. Position the CTs for the correct phases, then screw the CTs to the
bracket. For models IS4x0360N to IS4x0930N, the CTs must be placed on an angle (the left hand legs of each CT
will be on the top row of holes and the right hand legs will be on the bottom tabs).
It is the user's responsibility to follow these instructions correctly. Control Techniques cannot be held responsible for
any damage to the starter or associated equipment from incorrect practice.
CAUTION
12
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Electrical Installation
Always apply control voltage before (or with) mains voltage.
WARNING
Always follow the specified tightening torque for all power and ground terminal connections.
WARNING
For specifications and detailed technical data, see Technical Data on page 74.
4.1
Terminal layout
4.1.1
Power terminations
Use only copper stranded or solid conductors, rated for 75 ºC.
Figure 4-1 Cable sizes and maximum torque settings (IS1x0023B to IS1x0105B)
NOTE
For personnel safety, the power terminals on models up to IS1x0105B are protected by snap-off tabs. When using large
cables, it may be necessary to break off these tabs.
Models which are internally bypassed do not require an external bypass contactor.
Figure 4-2 Busbar dimensions and maximum torque settings (IS2x0145B to IS561600N)
IS2x0145B
8.5 Nm (6.3 ft-lb)
IS2x0170B to IS2x0220B
8.5 Nm (6.3 ft-lb)
IS3x0255N
17 Nm (12.5 ft-lb)
08353. A
10.5 mm
32 mm
IS4x0360N to IS4x0930N
38 Nm (28.5 ft-lb)
6 mm
IS561200N to IS561600N
58 Nm (42.7 ft-lb)
08354. A
10.5 mm
32 mm
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The busbars on models IS4x0360N to IS561600N can be adjusted for top or bottom input and output as required. See Busbar
Adjustment Procedure on page 11 for step-by-step instructions.
Figure 4-3 Busbar configuration options
Output
Input
Input
Output
08350.A
Input/Output
Input/Output
4.1.2
Ground terminals
Ground terminals are located at the back of the soft starter.


IS1x0023B to IS1x0105B have one terminal on the input side.
IS2x0145B to IS561600N have two terminals, one on the input side and one on the output side.
The ground terminal may also be used for a ground shield connection if necessary.
Tighten the cables as follows:
Table 4-1 Ground terminal maximum torque settings
Models
IS1x0023B to IS1x0105B
IS2x0145B to IS3x0255N
IS4x0360N to IS561600N
Terminal size
Torque
M6
M8
M10
3 Nm
5 Nm
8.5 Nm
Figure 4-4 Ground terminal locations
IS1x0023B to IS1x0105B
IS2x0145B to IS561600N
14
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Control terminals
Always connect control voltage to the correct terminals:
CAUTION


110 to 210 Vac: CSL-CSR or
220 to 440 Vac: CSH-CSR
The installer must ensure that the external control circuits are insulated from human contact by at least one layer of
insulation (supplementary insulation) rated for use at the AC supply voltage.
WARNING
2
Control terminations use 2.5mm plug-in terminal blocks. Unplug each block, complete the wiring, then reinsert the block.
Figure 4-5 Control terminal layout
220~440 VAC
08339.A
110~210 VAC
4.1.4
Control wiring
The Digistart IS has three fixed inputs for remote control. These inputs should be controlled by contacts rated for low voltage, low
current operation (gold flash or similar).
Figure 4-6 Control wiring options
2
DI1
Start
+24V
Start/stop
Reset
DI2
+24V
E
DI1
+24V
Stop
+24V
DI3
3
DI2
+24V
Reset
DI3
+24V
Start
Stop
Reset
E
DI1
1
2
3
+24V
DI2
Two-wire control
Three-wire control
Four-wire control
+24V
DI3
+24V
08340.A
1
E
Do not apply voltage to the control input terminals. These are active 24 Vdc inputs and must be controlled with potential
free contacts.
CAUTION
Cables to the control inputs must be segregated from mains voltage and motor cabling.
4.1.5
Relay outputs
The Digistart IS provides four relay outputs, one fixed and three programmable.
The Run output closes when the soft start is complete (when the starting current falls below 120% of the programmed motor full load
current) and remains closed until the beginning of a stop (either soft stop or coast to stop).
Operation of the programmable outputs is determined by the settings of Pr 4A to 4I.



If assigned to Main Contactor, the output activates as soon as the soft starter receives a start command and remains active
while the soft starter is controlling the motor (until the motor starts a coast to stop, or until the end of a soft stop).
If assigned to a trip function, the output activates when a trip occurs.
If assigned to a flag, the output activates when the specified flag is active (Pr 7A to 7C).
Some electronic contactor coils are not suitable for direct switching with PCB mount relays. Consult the contactor
manufacturer/supplier to confirm suitability.
CAUTION
Three additional outputs are available on the input/output expansion card.
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Motor thermistors
Motor thermistors can be connected directly to the Digistart IS. The soft starter will trip when the resistance of the thermistor circuit
exceeds approximately 3.6 k.
Figure 4-7 Motor thermistor connection
Motor thermistors
TH1
TH2
TH1
TH2
Thermistor input
08528.A
No motor thermistors
E
NOTE
16
If no motor thermistors are connected to the Digistart IS thermistor input terminals TH1, TH2 must be open. If TH1, TH2
are shorted, the Digistart IS will trip.
The thermistor circuit should be run in screened cable and must be electrically isolated from ground and all other power
and control circuits.
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Control connections
Figure 4-8 Digistart IS electrical schematic
CSH
220-440 VAC
+10%
-15%
110-210 VAC
CSL
+10%
-15%
+24V
5
1
0V
CSR
DI1
COM1
+24V
RLO1
DI2
COM2
+24V
RLO2
DI3
+24V
COM3
2
6
RLC3
DI4
RLO3
+24V
COM4
DI5
RLC4
+24V
RLO4
TH1
TH2
PT3
PT4
PT4
PT5
C
1
2
3
4A
4B
4C
5
6
7
PT5
B
Control voltage
Remote control inputs
Motor thermistor input
RTD/PT100 input - 2-wire
RTD/PT100 input - 3-wire
RTD/PT100 input - 4-wire
24 Vdc output
Relay outputs
Analog output
PT3
A
PT4
AO1
4
PT5
7
E
DI1, +24V
DI2, +24V
DI3, +24V
DI4, +24V
DI5, +24V
COM1, RLO1
COM2, RLO2
COM3, RLC3, RLO3
COM4, RLC4, RLO4
0V
08347.A
PT3
3
Start
Stop
Reset
Programmable input A
Programmable input B
Relay output A
Run relay output
Relay output B
Relay output C
The Digistart IS can be commanded to emergency stop the motor, ignoring the soft stop mode set in Pr 2H.
When the circuit across DI4, +24V is opened, the soft starter allows the motor to coast to stop.
To use the emergency stop function, set Pr 3A to 'Emergency Stop' (this is the default setting).
If emergency stop is not required, change the setting of Pr 3A or connect a link across DI4, +24V.
For keypad control, the soft starter requires:


control supply connections (terminals CSH, CSL, CSR depending on the control voltage)
programmable input A (DI4, +24V) must be closed or Pr 3A Input A Function must be changed from Emergency Stop
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4.3
Power connections
4.3.1
In-line installation
 In-line installation, internally bypassed
Figure 4-9 Power connections - in-line installation, internally bypassed
KM1
F1
1/L1
2/T1
3/L2
4/T2
M
3
5/L3
6/T3
E
08341.A
COM1
KM1
F1
NOTE
RLO1
KM1
Main contactor (optional)
Semiconductor fuses (optional)
Main contactor is the default setting for Pr 4A Relay A Function (COM1, RLO1).
 In-line installation, externally bypassed
Non-bypassed models have dedicated bypass terminals, which allow the Digistart IS to continue providing protection and monitoring
functions even when bypassed via an external bypass contactor. The bypass contactor must be connected to the bypass terminals
and controlled by the soft starter's run output (terminals COM2, RLO2).
Figure 4-10 Power connections - in-line installation, externally bypassed
KM1
KM2
F1
18
Main contactor (optional)
Bypass contactor
Semiconductor fuses (optional)
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The bypass terminals on IS3x0255N are T1B, T2B, T3B. The bypass terminals on IS4x0360N to IS561600N are L1B,
L2B, L3B.
The fuses can be installed on the input side if required.
NOTE
Main contactor is the default setting for Pr 4A Relay A Function (COM1, RLO1). Output relay COM2, RLO2 is dedicated
to Run output operation and is ideal for managing an external bypass contactor.
 In-line installation, non-bypassed
Figure 4-11 Power connections - in-line installation, non-bypassed
KM1
F1
4.3.2
Main contactor (optional)
Semiconductor fuses (optional)
Inside delta installation
When connecting the Digistart IS in inside delta configuration, always install a main contactor or shunt trip circuit
breaker.
CAUTION
 Inside delta installation, internally bypassed
Figure 4-12 Power connections - inside delta installation, internally bypassed
KM1
F1
1/L1
2/T1
3/L2
4/T2
U1(1) U2(4)
V1(2)
M
V2(5)
3
W1(3)
4/L3
W2(6)
6/T3
E
08344.A
COM1
KM1
F1
RLO1
KM1
Main contactor
Semiconductor fuses (optional)
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 Inside delta installation, externally bypassed
Non-bypassed models have dedicated bypass terminals, which allow the Digistart IS to continue providing protection and monitoring
functions even when bypassed via an external bypass contactor. The bypass contactor must be connected to the bypass terminals
and controlled by the soft starter's run output (terminals COM2, RLO2).
Figure 4-13 Power connections - inside delta installation, externally bypassed
KM1
KM2
F1
NOTE
Main contactor
Bypass contactor
Semiconductor fuses (optional)
The bypass terminals on IS3x0255N are T1B, T2B, T3B. The bypass terminals on IS4x0360N to IS561600N are L1B,
L2B, L3B.
The fuses can be installed on the input side if required.
 Inside delta installation, non-bypassed
Figure 4-14 Power connections - inside delta installation, non-bypassed
KM1
F1
20
Main contactor
Semiconductor fuses (optional)
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Fuses
Semiconductor fuses can be used for Type 2 coordination and to reduce the risk of damage to SCRs from transient overload
currents.
HRC fuses (such as Ferraz AJT fuses) can be used for Type 1 coordination.
Adaptive Control controls the motor's speed profile, within the programmed time limit. This may result in a higher level
of current than traditional control methods.
NOTE
For applications using Adaptive Control to soft stop the motor with stop times greater than 30 seconds, motor branch protection
should be selected as follows:




standard HRC line fuses: minimum 150% motor full load current
motor rated line fuses: minimum rating 100/150% motor full load current
motor control circuit breaker minimum long time setting: 150% motor full load current,
motor control circuit breaker minimum short time setting: 400% motor full load current for 30 seconds
Fuse selection is based on a 400% FLC start for 20 seconds in conjunction with standard published starts per hour,
duty cycle, 40°C ambient temperature and up to 1000 m altitude. For installations operating outside these conditions,
consult your local supplier.
NOTE
These fuse tables contain recommendations only. Always consult your local supplier to confirm the selection for your
particular application.
Table 4-2 Bussman fuses - square body (170M)
Model
IS1x0023B
IS1x0043B
IS1x0053B
IS1x0076B
IS1x0097B
IS1x0105B
IS2x0145B
IS2x0170B
IS2x0200B
IS2x0220B
IS3x0255N
IS4x0360N
IS4x0430N
IS4x0650N
IS4x0790N
IS4x0930N
IS561200N
IS561410N
IS561600N
2
2
SCR I t (A s)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
Supply Voltage
(< 690 Vac)
1150
8000
15000
15000
51200
125000
125000
320000
320000
320000
320000
238000
320000
1200000
2530000
4500000
4500000
6480000
12500000
170M1314
170M1316
170M1318
170M1319
170M1321
170M1321
170M1321
170M2621
170M2621
170M2621
170M2621
170M6010
170M6011
170M6015
170M6017
170M6019
170M6021
––
170M6019*
170M1314
170M1316
170M1318
170M1319
170M1321
170M1321
170M1321
170M2621
170M2621
170M2621
170M2621
170M6010
170M6011
170M6015
170M6017
170M6019
––
––
––
170M1314
170M1316
170M1318
170M1318
170M1319
170M1321
170M1321
170M2621
170M2621
170M2621
170M2621
170M6010
––
170M6014
170M6016
170M6019
––
––
––
* Two parallel connected fuses required per phase.
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Table 4-3 Bussman fuses - British style (BS88)
Model
IS1x0023B
IS1x0043B
IS1x0053B
IS1x0076B
IS1x0097B
IS1x0105B
IS2x0145B
IS2x0170B
IS2x0200B
IS2x0220B
IS3x0255N
IS4x0360N
IS4x0430N
IS4x0650N
IS4x0790N
IS4x0930N
IS561200N
IS561410N
IS561600N
2
2
SCR I t (A s)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
Supply Voltage
(< 690 Vac)
1150
8000
15000
15000
51200
125000
125000
320000
320000
320000
320000
238000
320000
1200000
2530000
4500000
4500000
6480000
12500000
63FE
120FEE
200FEE
200FEE
200FEE
280FM
280FM
450FMM
450FMM
450FMM
450FMM
––
––
630FMM*
––
––
––
––
––
63FE
120FEE
200FEE
200FEE
200FEE
280FM
280FM
450FMM
450FMM
450FMM
450FMM
––
––
630FMM*
––
––
––
––
––
63FE
120FEE
200FEE
200FEE
200FEE
280FM
280FM
450FMM
450FMM
450FMM
450FMM
––
––
––
––
––
––
––
––
SCR I t (A s)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
Supply Voltage
(< 690 Vac)
1150
8000
15000
15000
51200
125000
125000
320000
320000
320000
320000
320000
238000
320000
1200000
2530000
4500000
4500000
6480000
12500000
HSJ40**
HSJ80**
HSJ110**
HSJ125**
HSJ175
HSJ225
HSJ250
HSJ300
HSJ350
HSJ400**
HSJ400**
HSJ450**
HSJ40**
HSJ80**
HSJ110**
HSJ125**
HSJ175**
HSJ225
HSJ250**
HSJ300
HSJ350
HSJ400**
HSJ400**
HSJ450**
Not suitable
Not suitable
* Two parallel connected fuses required per phase.
Table 4-4 Ferraz fuses - HSJ
Model
IS1x0023B
IS1x0043B
IS1x0053B
IS1x0076B
IS1x0097B
IS1x0105B
IS2x0145B
IS2x0170B
IS2x0200B
IS2x0200B
IS2x0220B
IS3x0255N
IS4x0360N
IS4x0430N
IS4x0650N
IS4x0790N
IS4x0930N
IS561200N
IS561410N
IS561600N
2
2
Not suitable
** Two series connected fuses required per phase.
22
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Table 4-5 Ferraz fuses - North American style (PSC 690)
Model
2
2
SCR I t (A s)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
Supply Voltage
(< 690 Vac)
1150
8000
15000
15000
51200
125000
125000
320000
320000
320000
320000
238000
320000
1200000
2530000
4500000
4500000
6480000
12500000
A070URD30XXX0063
A070URD30XXX0125
A070URD30XXX0125
A070URD30XXX0160
A070URD30XXX0200
A070URD30XXX0315
A070URD30XXX0315
A070URD30XXX0315
A070URD30XXX0450
A070URD30XXX0450
A070URD30XXX0450
A070URD33XXX0630
A070URD33XXX0700
A070URD33XXX1000
A070URD33XXX1400
A070URD33XXX1400
A055URD33XXX2250
A055URD33XXX2250
––
A070URD30XXX0063
A070URD30XXX0125
A070URD30XXX0125
A070URD30XXX0160
A070URD30XXX0200
A070URD30XXX0315
A070URD30XXX0315
A070URD30XXX0315
A070URD30XXX0450
A070URD30XXX0450
A070URD30XXX0450
A070URD33XXX0630
A070URD33XXX0700
A070URD33XXX1000
A070URD33XXX1400
A070URD33XXX1400
––
––
––
––
A070URD30XXX0125
A070URD30XXX0125
A070URD30XXX0160
A070URD30XXX0200
A070URD30XXX0315
A070URD30XXX0315
A070URD30XXX0315
A070URD30XXX0450
A070URD30XXX0450
A070URD30XXX0450
A070URD33XXX0630
––
A070URD33XXX1000
A070URD33XXX1250
A070URD33XXX1400
––
––
––
IS1x0023B
IS1x0043B
IS1x0053B
IS1x0076B
IS1x0097B
IS1x0105B
IS2x0145B
IS2x0170B
IS2x0200B
IS2x0220B
IS3x0255N
IS4x0360N
IS4x0430N
IS4x0650N
IS4x0790N
IS4x0930N
IS561200N
IS561410N
IS561600N
XXX = blade type. See Ferraz catalog for details.
Table 4-6 Ferraz fuses - European style (PSC 690)
Model
IS1x0023B
IS1x0043B
IS1x0053B
IS1x0076B
IS1x0097B
IS1x0105B
IS2x0145B
IS2x0170B
IS2x0200B
IS2x0220B
IS3x0255N
IS4x0360N
IS4x0430N
IS4x0650N
IS4x0790N
IS4x0930N
IS561200N
IS561410N
IS561600N
Digistart IS User Guide
Issue Number: 2
2
2
SCR I t (A s)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
Supply Voltage
(< 690 Vac)
1150
8000
15000
15000
51200
125000
125000
320000
320000
320000
320000
238000
320000
1200000
2530000
4500000
4500000
6480000
12500000
6.9URD30D11A0050
6.9URD30D11A0125
6.9URD30D11A0125
6.9URD30D11A0160
6.9URD30D11A0200
6.9URD30D11A0315
6.9URD30D11A0315
6.9URD30D11A0315
6.9URD31D11A0450
6.9URD31D11A0450
6.9URD31D11A0450
6.9URD33D11A0630
6.9URD33D11A0700
6.9URD33D11A1000
6.6URD33D11A1400
6.6URD33D11A1400
6.9URD233PLAF2200
6.9URD233PLAF2200
6URD233PLAF2800
6.9URD30D11A0050
6.9URD30D11A0125
6.9URD30D11A0125
6.9URD30D11A0160
6.9URD30D11A0200
6.9URD30D11A0315
6.9URD30D11A0315
6.9URD30D11A0315
6.9URD31D11A0450
6.9URD31D11A0450
6.9URD31D11A0450
6.9URD33D11A0630
6.9URD33D11A0700
6.9URD33D11A1000
6.6URD33D11A1400
6.6URD33D11A1400
6.9URD233PLAF2200
6.9URD233PLAF2200
6URD233PLAF2800
6.9URD30D11A0050
6.9URD30D11A0125
6.9URD30D11A0125
6.9URD30D11A0160
6.9URD30D11A0200
6.9URD30D11A0315
6.9URD30D11A0315
6.9URD30D11A0315
6.9URD31D11A0450
6.9URD31D11A0450
6.9URD31D11A0450
6.9URD33D11A0630
6.9URD33D11A0700
6.9URD33D11A1000
6.6URD33D11A1400
6.6URD33D11A1400
––
6.9URD233PLAF2200
––
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Table 4-7 Ferraz fuses - AJT
2
Model
IS1x0023B
IS1x0043B
IS1x0053B
IS1x0076B
IS1x0097B
IS1x0105B
IS2x0145B
IS2x0170B
IS2x0200B
IS2x0220B
IS3x0255N
IS4x0360N
IS4x0430N
IS4x0650N
IS4x0790N
IS4x0930N
IS561200N
IS561410N
IS561600N
4.5
2
SCR I t (A s)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
1150
8000
15000
15000
51200
125000
125000
320000
320000
320000
320000
238000
320000
1200000
2530000
4500000
4500000
6480000
12500000
AJT25
AJT50
AJT60
AJT80
AJT100
AJT125
AJT150
AJT175
AJT200
AJT250
AJT300
AJT400
AJT450
A4BQ800
A4BQ1200
A4BQ1200 / A4BT1100
A4BQ1600
A4BQ2000
A4BQ2500 / A4BT1800
AJT25
AJT50
AJT60
AJT80
AJT100
AJT125
AJT150
AJT175
AJT200
AJT250
AJT300
AJT400
AJT450
A4BQ800
A4BQ1200
A4BQ1200 / A4BT1100
A4BQ1600
A4BQ2000
A4BQ2500 / A4BT1800
Supply Voltage
(< 690 Vac)
Not suitable
Bypass contactor
Digistart IS soft starters with model numbers IS1x0023B to IS2x0220B are internally bypassed and do not require an external
bypass contactor.
Digistart IS soft starters with model numbers IS3x0255N to IS561600N are not internally bypassed and may be installed with an
external bypass contactor. Select a contactor with an AC1 rating greater than or equal to the full load current rating of the connected
motor.
4.6
Main contactor
A main contactor must be installed if the Digistart IS is connected to the motor in inside delta format and is optional for in-line
connection. Select a contactor with an AC3 rating greater than or equal to the full load current rating of the connected motor.
4.7
Circuit breaker
A shunt trip circuit breaker may be used instead of a main contactor to isolate the motor circuit in the event of a soft starter trip. The
shunt trip mechanism must be powered from the supply side of the circuit breaker or from a separate control supply.
4.8
Power factor correction
If power factor correction is used, a dedicated contactor should be used to switch in the capacitors.
Power factor correction capacitors must be connected to the input side of the soft starter. Connecting power factor
correction capacitors to the output side will damage the soft starter.
CAUTION
4.9
EMC (electromagnetic compatibility)
4.9.1
Immunity
The Digistart IS complies with the following international immunity standards as required for IEC60947-4-2:
Table 4-8 EMC immunity
Standard
IEC61000-2-4
IEC61000-4-2
IEC61000-4-3
IEC61000-4-4
IEC61000-4-5
IEC61000-4-6
IEC61000-4-11
24
Type of Immunity
Harmonics
Electrostatic Discharge
Radiated radio frequency field
Successive rapid transients
Surges
Conducted radio frequency
Voltage dips & short time interruptions
Application
Housing of equipment
Housing of equipment
Control and power cables
Power cables
Control and power cables
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Level 3
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Level 4
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Conducted and radiated emissions
If the Digistart IS is installed in accordance with the wiring instructions, the Digistart IS complies with the following international
immunity standards:
Table 4-9 Conducted and radiated emissions
Standard
IEC60947-4-2
IEC60947-4-2
Emissions
Conducted on power supply from 150 kHz to 30MHz
Radiated emissions from 30 to 1000 MHz (CISPR 11 Group 1 class B)
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Complies
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5.
Keypad and Status
5.1
Keypad
Figure 5-1 Keypad and display
2 min
Four-line display for status and programming details.
1
Status LEDs
Soft starter local control buttons.
2
Menu navigation buttons.
M: Enter a menu or parameter, or save a parameter change
: Exit the menu or parameter, or cancel a parameter change.
: Scroll to the next or previous status screen, menu or parameter, or
change the setting of the current parameter.
Shortcut buttons for quick access to common tasks.
Ready
Run
Stop
Start
3
4
Trip
Local
LCL
RMT
5
08349.A
Table 5-1 Feedback LEDs
LED
On
Ready
Ready
Run
Trip
Local
Running
Starter tripped
Local control mode
5.2
Blinking
Restart delay or motor temperature
check
Starting/ stopping
Warning
n/a
Off
No control power
Not running, starting or stopping
Normal operation
Remote control mode
Removing and replacing the keypad
The keypad can be removed from the soft starter and mounted remotely on a panel using the remote mounting kit.
The keypad stores a backup copy of the parameters in the soft starter, so one keypad can be used to program multiple Digistart IS
starters.
NOTE
5.2.1
The keypad can be removed or replaced while the starter is running. It is not necessary to remove mains or control
voltage.
Removing the keypad
The keypad is attached to the body of the soft starter by a DB9 serial connector and two screws. The screws are concealed behind
a snap-on faceplate.
To remove the keypad:
1. On IS1x0023B to IS2x0220B, open the Digistart IS's door.
On IS3x0255N to IS561600N, remove the Digistart IS's front cover.
2. Insert a small screwdriver under the faceplate, at the base of the keypad, and use the screwdriver to lever the faceplate off
the keypad.
3. Lift the faceplate off completely.
4. Remove the two screws holding the keypad in place.
5. Lift the keypad gently off the soft starter. Pull the keypad forwards, to avoid damaging the DB9 connector.
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5.2.2
Replacing the keypad
To replace the keypad:
1. Align the connector on the back of the keypad with the socket on the soft starter and push the keypad firmly into place. The
keypad will be held in place by the connector and two locating nibs in the top right and bottom left corners.
For temporary installation (e.g. during commissioning) it is not necessary to screw the keypad in place.
2. Replace the two screws holding the keypad in place.
3. Slide the bottom edge of the faceplate over the body of the keypad, then swing the top edge of the faceplate into place and
press onto the keypad. The retaining tabs on the back of the faceplate will snap into place.
5.3
Synchronising the keypad and the starter
When a keypad is connected to a Digistart IS, it synchronises its parameter settings with the settings in the soft starter.
Every time a different keypad is plugged into the starter, an acknowledgement is
displayed.
The default action is to copy the parameter settings from the keypad to the soft starter.
and
buttons. Press M to proceed.
To change the action, use the
New Display Detected
Copy Parameters
Display to Starter
Starter to Display
If any of the settings in the keypad are not valid for the starter, the keypad loads the
default values.
If a setting in the keypad is not valid for the starter, the keypad will display the message "Par. xx Out of Range".
NOTE
5.4
Displays
The keypad displays a wide range of performance information about the soft starter.
The top half of the screen shows real-time information on starter status, motor temperature and motor power.
Use the



and
buttons to select the information shown on the bottom half of the screen.
Current
Last start information
Date and time
5.4.1
Starter status
The starter status screen shows details of the starter's operating status, motor temperature and motor power.
Ready
M1 000%
5.4.2
000.0kW
Average current
The average current screen shows real-time average current.
0.0A
5.4.3
Programmable screen
The Digistart IS's user-programmable screen can be configured to show the most important information for the particular application.
Use Pr 9B to 9E to select which information to display.
000.0A
00000hrs
5.4.4
0.0pf
000kWh
Current
The current screen shows real-time line current on each phase. If the RTD/PT100 and ground fault protection card is fitted, the
screen will also show ground current.
000.0A
Phase Currents
000.0A
5.4.5
Voltage
000.0A
The voltage screen shows real-time line voltage across each phase.
440V
NOTE
Line Voltages
441V
440V
Voltage monitoring is only available if the voltage measurement card is installed.
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5.4.6
Last start information
The last start information screen shows details of the most recent successful start:



start duration (seconds)
maximum start current drawn (as a percentage of motor full load current)
calculated rise in motor temperature
Last start
350 % FLC
5.4.7
010 s
 Temp 5%
Date and time
The date/time screen shows the current system date and time (24 hour format). For details on setting the date and time, see Set
Date and Time on page 57.
DD MMM YYYY
HH:MM:SS
5.4.8
Performance graph
The performance graph provides a real-time display of operating performance. Use Pr 9F to 9I to select which information to display.
0-400%
05050.B
000.0 A
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6.
Operation
6.1
Start, stop and reset commands
The soft starter can be controlled in three ways:

using the buttons on the keypad

via remote inputs

via a serial communication link
The LCL/RMT button controls whether the Digistart IS will respond to local control (via the keypad) or remote control (via the remote
inputs).

The Local LED on the keypad is on when the soft starter is in local control mode and off when the soft starter is in remote
control mode.

The Remote LED on the Digistart IS is on when the soft starter is in Remote mode and off when in Local mode. The Remote
LED is located on the main body of the starter (behind the keypad) and is only visible if the keypad is remotely mounted.
Control via the serial communication network is always enabled in local control mode, and can be enabled or disabled in remote
control mode (see Pr 3O). Control via the serial communication network requires an optional communication module.
The STOP button on the keypad is always enabled.
To reset a trip on the soft starter, press the RESET button on the keypad or activate the Reset remote input.
NOTE
6.2
Adaptive Control, Jog, Brake and PowerThrough functions are not supported with inside delta (six-wire) operation.
See Inside Delta Operation on page 36.
Soft start methods
Soft starters offer a variety of methods to control motor starting. Each soft start method uses a different primary control parameter.
Table 6-1 Soft start methods
Soft Start Method
Timed Voltage Ramp
Constant Current
Torque Control
Adaptive Acceleration Control
Parameter Controlled
Voltage
Current
Torque
Acceleration
Performance Parameters Influenced
Start current, start torque, acceleration
Start torque, acceleration
Start current, acceleration
Start current, start torque
Best results are obtained by selecting the soft start method that directly controls the parameter of most importance for the
application. Typically soft starters are used to limit motor start current or control load acceleration and/or deceleration.
The Digistart IS offers Constant Current or Adaptive Acceleration Control. Use Pr 2A to select the soft start method.
Table 6-2 Control functions of soft start methods
To Control
Motor Start Current
Motor/Load Acceleration
Use
Constant Current
Adaptive Acceleration Control
To soft start the motor, press the START button on the keypad or activate the Start remote input. The motor will start using the start
mode selected in Pr 2A.
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Constant current
Constant current is the traditional form of soft starting, which raises the current from zero to a specified level and keeps the current
stable at that level until the motor has accelerated.
Constant current starting is ideal for applications where the start current must be kept below a particular level.
Figure 6-1 Constant current soft start
Current (%motor full load current)
700%
3
600%
500%
400%
1: Initial current (Pr 2C)
2: Current limit (Pr 2B)
3: Full voltage current
2
300%
1
200%
100%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Rotor speed (% full speed)
6.2.2
Current ramp
Current ramp soft starting raises the current from a specified starting level (1) to a maximum limit (3), over an extended period of
time (2).
Current ramp starting can be useful for applications where:

Current (%motor full load current)
the load can vary between starts (for example a conveyor which may start loaded or unloaded). Set the initial current (Pr 2C) to
a level that will start the motor with a light load, and the current limit (Pr 2B) to a level that will start the motor with a heavy load.

the load breaks away easily, but starting time needs to be extended (for example a centrifugal pump where pipeline pressure
needs to build up slowly).

the electricity supply is limited (for example a generator set), and a slower application of load will allow greater time for the
supply to respond.
Figure 6-2 Current ramp soft start
700%
4
600%
500%
2
400%
3
300%
200%
100%
1: Initial current (Pr 2C)
2: Start ramp time (Pr 2D)
3: Current limit (Pr 2B)
4: Full voltage current
1
Time
6.2.3
Adaptive control for starting
Adaptive Acceleration Control is a new intelligent motor control technique. In an adaptive control soft start, the Digistart IS adjusts
the current in order to start the motor within a specified time and using a selected acceleration profile.
NOTE
Adaptive Acceleration Control cannot start the motor faster than a direct on-line (DOL) start. If the start ramp time (Pr
2D) is shorter than the motor's DOL start time, starting current may reach DOL levels.
Every application has a particular starting profile, based on characteristics of the load and the motor. Adaptive Acceleration Control
offers three different starting profiles, to suit the requirements of different applications. Selecting a profile that matches the inherent
profile of the application can help smooth out acceleration across the full start time. Selecting a dramatically different Adaptive
Control profile can somewhat neutralise the inherent profile.
The Digistart IS monitors the motor's performance during each start, to improve control for future soft starts.
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Adaptive acceleration control
To use Adaptive Acceleration Control to control starting performance:
1.
2.
3.
4.
Select Adaptive Control from the Start Mode menu (Pr 2A)
Set the desired Start Ramp Time (Pr 2D)
Select the desired Adaptive Start Profile (Pr 2E)
Set a start Current Limit (Pr 2B) sufficiently high to allow a successful start. The first start will be a Constant Current start.
This allows the Digistart IS to learn the characteristics of the connected motor. This motor data is used by the Digistart IS
during subsequent Adaptive Acceleration Control starts.
Figure 6-3 Adaptive control soft start
4
Adaptive start profile (Pr 2E):
1. Early acceleration
2. Constant acceleration
3. Late acceleration
4. Start ramp time (Pr 2D)
100%
90%
80%
70%
60%
1
50%
40%
2
30%
Speed
20%
10%
3
0
Time
NOTE
Adaptive Acceleration Control will control the load according to the programmed profile. Start current will vary
according to the selected acceleration profile and the programmed start time.
If replacing a motor connected to a Digistart IS programmed for Adaptive Control starting or stopping, or if the starter
has been tested on a different motor prior to actual installation, the starter will need to learn the characteristics of the
new motor. The Digistart IS will automatically re-learn the motor's characteristics if Pr 1A Motor Full Load Current or Pr
2L Adaptive Control Gain is changed.
How to select the Adaptive acceleration control start profile
The best profile will depend on the exact details of each application. If you have particular operational requirements, discuss details
of your application with your local supplier.
Some loads, such as submersible pumps, should not be run at slow speeds. An early acceleration profile will raise the speed
quickly, then control acceleration through the rest of the start.
NOTE
Adaptive Control controls the motor's speed profile, within the programmed time limit. This may result in a higher level
of current than traditional control methods.
Fine-tuning adaptive control
If the motor does not start or stop smoothly, adjust the adaptive control gain (Pr 2L). The gain setting determines how much the
Digistart IS will adjust future adaptive control starts and stops, based on information from the previous start. The gain setting affects
both starting and stopping performance.


If the motor accelerates or decelerates too quickly at the end of a start or stop, increase the gain setting by 5% to 10%.
If the motor speed fluctuates during starting or stopping, decrease the gain setting slightly.
NOTE
Changing the gain setting resets the starter's adaptive control learning. The first start after changing the gain will use
constant current.
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Kickstart
Kickstart provides a short boost of extra torque at the beginning of a start, and can be used in conjunction with current ramp or
constant current starting.
Kickstart can be useful to help start loads that require high breakaway torque but then accelerate easily (for example flywheel loads
such as presses).
Figure 6-4 Current ramp soft start with kickstart
6
Current (%motor full load current)
700%
2
600%
1: Kickstart level (Pr 2F)
2: Kickstart time (Pr 2G)
3: Initial current (Pr 2C)
4: Start ramp time (Pr 2D)
5: Current limit (Pr 2B)
6: Full voltage current
1
500%
4
400%
5
300%
200%
3
100%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Rotor speed (% full speed)
Kickstart subjects the mechanical equipment to increased torque levels. Ensure the motor, load and couplings can
handle the additional torque before using this feature.
CAUTION
6.3
Stop methods
Soft starters offer a variety of methods for the control of motor stopping.
Table 6-3 Soft stop methods
Stop Method
Coast To Stop
TVR Soft Stop
Adaptive Deceleration Control
STV Stop
Brake
Performance Result
Natural load run down
Extended run down time
Extended run down time according to selected deceleration profile
Extended run down time
Reduced run down time
Soft starters are often used in pumping applications to eliminate the damaging effects of fluid hammer. Adaptive Control should be
the preferred stop method for these applications.
To stop the motor, press the STOP button on the keypad or activate the Stop remote input. The motor will stop using the stop
mode selected in Pr 2H.
6.3.1
Coast to stop
Coast to stop lets the motor slow at its natural rate, with no control from the soft starter. The time required to stop will depend on the
type of load.
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6.3.2
TVR soft stop
Timed voltage ramp reduces the voltage to the motor gradually over a defined time. The load may continue to run after the stop
ramp is complete.
Timed voltage ramp stopping can be useful for applications where the stop time needs to be extended, or to avoid transients on
generator set supplies.
Figure 6-5 TVR soft stop
1
1: Stop time (Pr 2I)
100%
90%
80%
Voltage (% full voltage)
70%
60%
50%
40%
30%
20%
10%
04749.B
Time
6.3.3
Adaptive control for stopping
In an adaptive control soft stop, the Digistart IS controls the current in order to stop the motor within a specified time and using a
selected deceleration profile. Adaptive Deceleration Control can be useful in extending the stopping time of low inertia loads.
Adaptive control does not actively slow the motor down and will not stop the motor faster than a coast to stop. To
shorten the stopping time of high inertia loads, use brake.
NOTE
Every application has a particular stopping profile, based on characteristics of the load and the motor. Adaptive Deceleration
Control offers three different stopping profiles. Choose the adaptive control profile that best matches your application requirements.
Adaptive deceleration control
To use Adaptive Deceleration Control to control stopping performance:
1. Select Adaptive Control from the Stop Mode menu (Pr 2H)
2. Set the desired Stop Time (Pr 2I)
3. Select the required Adaptive Stop Profile (Pr 2K)
Figure 6-6 Adaptive deceleration control soft stop
4
100%
90%
80%
70%
60%
1
2
3
Adaptive Control stop profile (Pr 2K):
1. Early deceleration
2. Constant deceleration
3. Late deceleration
4. Stop time (Pr 2I)
50%
40%
Speed
30%
20%
10%
0
Time
Table 6-4 Adaptive deceleration control soft stop profiles
Adaptive Stop Profile
Late Deceleration
Constant Deceleration
Early Deceleration
Digistart IS User Guide
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Application
High head systems where even a small decrease in motor/pump speed results in a rapid
transition between forward flow and reverse flow.
Low to medium head, high flow applications where the fluid has high momentum.
Open pump systems where fluid must drain back through the pump without driving the pump
in reverse.
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Pump stopping: The hydraulic characteristics of pump systems vary considerably. This variation means the ideal
deceleration profile and stop time will vary from application to application. The table provides guidelines on selecting
between Adaptive Control deceleration profiles, but we recommend testing the three profiles to identify the best profile
for the application.
The first Adaptive Deceleration Control stop will be a normal soft stop. This allows the Digistart IS to learn the characteristics of the
connected motor. This motor data is used by the Digistart IS during subsequent Adaptive Control stops.
NOTE
Adaptive Control will control the load according to the programmed profile. Stopping current will vary according to the
selected deceleration profile and stop time.
If replacing a motor connected to a Digistart IS programmed for Adaptive Control starting or stopping, or if the starter
has been tested on a different motor prior to actual installation, the starter will need to learn the characteristics of the
new motor. The Digistart IS will automatically re-learn the motor's characteristics if Pr 1A Motor Full Load Current or Pr
2L Adaptive Control Gain is changed.
How to select the Adaptive deceleration control stop profile
The best profile will depend on the exact details of each application. If you have particular operational requirements, discuss details
of your application with your local supplier.
NOTE
Adaptive Control controls the motor's speed profile, within the programmed time limit. This may result in a higher level
of current than traditional control methods.
Fine-tuning adaptive control
If the motor does not start or stop smoothly, adjust the adaptive control gain (Pr 2L). The gain setting determines how much the
Digistart IS will adjust future adaptive control starts and stops, based on information from the previous start. The gain setting affects
both starting and stopping performance.


If the motor accelerates or decelerates too quickly at the end of a start or stop, increase the gain setting by 5% to 10%.
If the motor speed fluctuates during starting or stopping, decrease the gain setting slightly.
NOTE
6.3.4
Changing the gain setting resets the starter's adaptive control learning. The first start after changing the gain will use
constant current.
STV stop
STV soft stop is based on simple phase angle control of the SCRs.
NOTE
STV soft stop does not actively slow the motor and will not stop the motor faster than a coast to stop.
Figure 6-7 STV stop
U
1 sec
1
1 sec
09028.A
SCR firing delay
1. Stop Time (Pr 2I)
Time
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Data
Brake
When brake is selected, the Digistart IS uses DC injection to slow the motor.
Digistart IS braking:

Does not require the use of a DC brake contactor

Controls all three phases so that the braking currents and associated heating are evenly distributed through the motor.
Braking has two stages:
1. Pre-brake: provides an intermediate level of braking to slow motor speed to a point where full brake can be operated
successfully (approximately 70% speed).
2. Full brake: brake provides maximum braking torque but is ineffective at speeds greater than approximately 70%.
CAUTION
If the brake torque is set too high, the motor will stop before the end of the brake time and the motor will suffer
unnecessary heating which could result in damage. Careful configuration is required to ensure safe operation of the
starter and motor.
To configure the Digistart IS for brake operation:
1. Set Pr 2I for the desired stopping time duration (1). This is the total braking time and must be set sufficiently longer than the
brake time (Pr 2N) to allow the pre-braking stage to reduce motor speed to approximately 70%. If the stop time is too short,
braking will not be successful and the motor will coast to stop.
2. Set Brake Time (Pr 2N) to approximately one quarter of the programmed Stop Time. This sets the time for the Full Brake
stage (2).
3. Adjust the Brake Torque (Pr 2M) so that the desired stopping performance is achieved. If set too low, the motor will not stop
completely and will coast to stop by the end of the braking period.
For more information on using the Digistart IS with an external speed sensor (e.g. for applications with variable load during the
braking cycle), see Soft braking on page 71.
Figure 6-8 DC brake stop
Speed
1: Stop time (Pr 2I)
2: Brake time (Pr 2N)
3: Coast to stop time
Time
NOTE
Brake operation causes the motor to heat faster than the rate calculated by the motor thermal model. If you are using
brake, enable the motor temperature check (Pr 5L) or allow sufficient restart delay (Pr 6G).
During braking an increased noise level from the motor may be audible. This is a normal part of motor braking.
6.4
Jog operation
Jog runs the motor at reduced speed, to allow alignment of the load or to assist servicing. The motor can be jogged in either forward
or reverse direction.
The maximum available torque for jog is approximately 50% to 75% of motor full load torque (FLT) depending on the motor.
Available Jog torque in reverse is approximately 50% to 75% of the jog torque in forward direction. To set the jog torque level, use
Pr 15E.
NOTE
Setting Pr 15E above 50% may cause increased shaft vibration.
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Figure 6-9 Jog operation
100%
90%
80%
70%
Available jog torque
3
3
60%
50%
1. Jog Forward
2. Jog Reverse
3. Normal Operation
40%
30%
20%
1
10%
0%
05723.C
10%
20%
2
30%
40%
50%
Time
To activate jog operation, use either a programmable input (see Pr 3A and 3F (will operate only in Remote Mode)) or a shortcut key
(Pr 9J and 9K). If any other command is received when jogging the starter will stop and await a new command.
NOTE
CAUTION
6.5
Jog is only available for the primary motor. Soft start and soft stop are not available during jog operation.
Slow speed running is not intended for continuous operation due to reduced motor cooling. Jog changes the motor's
heating profile and reduces the accuracy of the motor thermal model. Do not rely on motor overload protection to
protect the motor during jog operation.
Inside delta operation
Adaptive Control, Jog, Brake and PowerThrough functions are not supported with inside delta (six-wire) operation. If these
functions are programmed when the starter is connected inside delta the behaviour is as given below:
Table 6-5 Inside delta compatibility
Adaptive Control Start
Adaptive Control Stop
Jog
Brake
PowerThrough
The starter performs a constant current start.
The starter performs a TVR soft stop if Pr 2I Stop Time is >0 secs. If Pr 2I is set to 0 secs the
starter performs a coast to stop.
The starter issues a warning with the error message Unsupported Option.
The starter performs a coast to stop.
The starter trips with the error message Lx-Tx Shorted.
For more information on PowerThrough, see Pr 15D Shorted SCR Action on page 55.
NOTE
36
When connected in inside delta, current imbalance is the only phase loss protection that is active during run. Do not
disable current imbalance protection (Pr 5C) during inside delta operation.
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7.
Programming Menu
The motor data parameters are critical to the correct operation of the soft starter's thermal model, and to the motor
overload protection. Always set Pr 1A to suit the motor's characteristics. The default settings of Pr 1B, 1C and 1D are
suitable for most applications. Consult the motor datasheet before changing these settings.
WARNING
7.1
Programming menu
The Programming Menu lets you view and change programmable parameters that control how the Digistart IS operates.
To open the Programming Menu, press the M button while viewing the monitoring screens.
To navigate through the Programming Menu:

to scroll through parameter groups, press the
or
button.

to open a submenu, press the M button.

to view the parameters in a group, press the M button.

to return to the previous level, press the
button.

to close the Programming Menu, press
repeatedly.
To change a parameter value:




scroll to the appropriate parameter in the Programming Menu and press M to enter edit mode.
and
buttons. Pressing
or
once will increase or decrease the value by one
to alter the parameter setting, use the
(1). If the button is held for longer than five seconds, the value will increase or decrease at a faster rate.
to save changes, press M. The setting shown on the display will be saved and the keypad will return to the parameter list.
to cancel changes, press
. The keypad will ask for confirmation, then return to the parameter list without saving changes.
The Programming Menu contains the following sub-menus.
Table 7-1 Programming menu structure
The Quick Setup Menu allows you to select common applications and guides you through the
parameter setup process for these applications.
The Standard Menu provides access to commonly used parameters, allowing you to configure the
Digistart IS to suit your application.
The Advanced Menu provides access to all the Digistart IS's programmable parameters, allowing
experienced users to take advantage of advanced features.
Setup Tools provides access to functions to save the current parameter settings to a file, load
parameters from a previously saved file, or reset all parameters to default values.
Simulations allows you to simulate operation of the soft starter, including input and output functions.
I/O State provides access to information on the current state of the analog and digital inputs and
outputs.
The Logs Menu provides access to the Trip Log and Event Log.
The Counters Menu provides access to information on the starter's operating history.
Quick Setup Menu
Standard Menu
Advanced Menu
Setup Tools
Simulations
I/O State
Logs
Counters
7.2
Access code
Critical parameters (parameter group 15 and higher) are protected by a four-digit security access code, preventing unauthorised
users from viewing or modifying parameter settings.
When a user attempts to enter a restricted parameter group, the keypad prompts for an access code. The access code is requested
once for the programming session, and authorisation continues until the user closes the menu.
and M buttons to select a digit, and the
and
buttons to change the value. When all
To enter the access code, use the
four digits match your access code, press M. The keypad will display an acknowledgement message before continuing.
Enter Access Code
0###
M
Access Allowed
SUPERVISOR
To change the access code, use Pr 15A.
The simulation tools and counter resets are also protected by the security access code.
The default access code is 0000.
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Adjustment lock
You can lock the Programming Menu to prevent users from altering parameter settings. The adjustment lock can be turned on and
off using Pr 15C.
To lock the programming menu:
1.
2.
3.
4.
5.
6.
Open the Programming Menu.
Open the Advanced Menu.
Select 'Restricted'
Enter the Access Code
Select Pr 15C Adjustment Lock.
Select and store 'Read Only'
If a user attempts to change a parameter value when the adjustment lock is active, an error message is displayed:
Access Denied
Adj Lock is On
7.4
Quick setup details
To access the Quick Setup Menu, press the M button and select Quick Setup Menu.
The Quick Setup Menu makes it easy to configure the Digistart IS for common applications. The Digistart IS selects the parameters
relevant to the application and suggests a typical setting, and you can adjust each parameter to suit your exact requirements.
Always set Pr 1A Motor Full Load Current to match the motor's nameplate full load current. The suggested value is the starter's
minimum full load current.
Table 7-2 Quick setup menu
Application
Pump Centrifugal
Pump Submersible
Fan Damped
Fan Undamped
Compressor Screw
Compressor Recip
38
Parameter
Pr
Number
Motor Full Load Current
Start Mode
Adaptive Start Profile
Start Ramp Time
Current Limit
Stop Mode
Adaptive Stop Profile
Stop Time
Motor Full Load Current
Start Mode
Adaptive Start Profile
Start Ramp Time
Current Limit
Stop Mode
Adaptive Stop Profile
Stop Time
Motor Full Load Current
Start Mode
Adaptive Start Profile
Start Ramp Time
Current Limit
Motor Full Load Current
Start Mode
Adaptive Start Profile
Start Ramp Time
Current Limit
Excess Start Time
Locked Rotor Time
Motor Full Load Current
Start Mode
Adaptive Start Profile
Start Ramp Time
Current Limit
Motor Full Load Current
Start Mode
Adaptive Start Profile
Start Ramp Time
Current Limit
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1A
2A
2E
2D
2B
2H
2K
2I
1A
2A
2E
2D
2B
2H
2K
2I
1A
2A
2E
2D
2B
1A
2A
2E
2D
2B
5A
1C
1A
2A
2E
2D
2B
1A
2A
2E
2D
2B
Suggested value
Model dependent
Adaptive Control
Early Acceleration
5 seconds
350%
Adaptive Control
Late Deceleration
15 seconds
Model dependent
Adaptive Control
Early Acceleration
5 seconds
350%
Adaptive Control
Late Deceleration
5 seconds
Model dependent
Adaptive Control
Constant Acceleration
15 seconds
350%
Model dependent
Adaptive Control
Constant Acceleration
20 seconds
400%
30 seconds
20 Seconds
Model dependent
Adaptive Control
Constant Acceleration
10 seconds
400%
Model dependent
Adaptive Control
Constant Acceleration
10 seconds
450%
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Conveyor
Crusher Rotary
Crusher Jaw
7.5
Parameter
Pr
Number
1A
2A
2E
2D
2B
2H
2K
2I
1A
2A
2E
2D
2B
5A
1C
1A
2A
2E
2D
2B
5A
1C
Motor Full Load Current
Start Mode
Adaptive Start Profile
Start Ramp Time
Current Limit
Stop Mode
Adaptive Stop Profile
Stop Time
Motor Full Load Current
Start Mode
Adaptive Start Profile
Start Ramp Time
Current Limit
Excess Start Time
Locked Rotor Time
Motor Full Load Current
Start Mode
Adaptive Start Profile
Start Ramp Time
Current Limit
Excess Start Time
Locked Rotor Time
Suggested value
Model dependent
Adaptive Control
Late Acceleration
15 seconds
400%
Adaptive Control
Constant Deceleration
5 seconds
Model dependent
Adaptive Control
Constant Acceleration
20 seconds
400%
30 seconds
20 seconds
Model dependent
Adaptive Control
Constant Acceleration
30 seconds
450%
40 seconds
30 seconds
Standard menu
The standard menu provides access to commonly used parameters. For parameter details, see Parameter Descriptions on page 44.
Table 7-3 Standard menu
Parameters
Parameter Group
Default Value
1 - Primary Motor Set
M
1A
Motor Full Load Current
Model dependent
2 - Start/Stop Modes-1
M
2A
2B
2C
2D
2H
2I
2O
2P
2Q
2R
Start Mode
Current Limit
Initial Current
Start Ramp Time
Stop Mode
Stop Time
Auto-Start Type
Auto-Start Time
Auto-Stop Type
Auto-Stop Time
Adaptive Control
350%
350%
00:10 (minutes:seconds)
Coast to Stop
00:03 (minutes:seconds)
Off
00:01 (hours: minutes)
Off
00:01 (hours: minutes)
3 - Digital Inputs
M
3A
3B
3C
3D
3E
3F
3G
3H
3I
3J
Input A Function
Input A Name
Input A Trip
Input A Initial Delay
Input A Trip Delay
Input B Function
Input B Name
Input B Trip
Input B Initial Delay
Input B Trip Delay
Emergency Stop
Emergency Stop
Always Active
00:00 (minutes:seconds)
00:00 (minutes:seconds)
Input Trip (N/O)
Input Trip
Always Active
00:00 (minutes:seconds)
00:00 (minutes:seconds)
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Parameter Group
Default Value
4 - Digital Outputs
M
4A
4B
4C
4D
4E
4F
4G
4H
4I
Relay A Action
Relay A On Delay
Relay A Off Delay
Relay B Action
Relay B On Delay
Relay B Off Delay
Relay C Action
Relay C On Delay
Relay C Off Delay
Main Contactor
00:00 (minutes:seconds)
00:00 (minutes:seconds)
Run
00:00 (minutes:seconds)
00:00 (minutes:seconds)
Trip
00:00 (minutes:seconds)
00:00 (minutes:seconds)
5 - Protection Settings
M
5A
5D
5E
5F
Excess Start Time
Phase Sequence
Underpower
Overpower
00:20 (minutes:seconds)
Any Sequence
20%
400%
6 - Protection Delays
M
6B
6C
Underpower Delay
Overpower Delay
00:05 (minutes:seconds)
00:00 (minutes:seconds)
7 - Set Points
M
7A
7B
7C
Low Current Flag
High Current Flag
Motor Temperature Flag
50%
100%
80%
9 - Display
M
9A
9B
9C
9D
9E
9J
9K
9M
Languages
User Screen - Top Left
User Screen - Top Right
User Screen - Bottom Left
User Screen - Bottom Right
F1 Button Action
F2 Button Action
Display A or kW
Motor Current
Motor pf
Hours Run
kWh
Auto-Start/Stop Menu
None
Current
7.6
Advanced menu
The Advanced Menu gives access to all the programmable parameters in the Digistart IS. See Parameter Descriptions on page 44.
Table 7-4 Advanced menu
Parameters
Parameter Group
1 - Primary Motor Set
40
M
1A
1B
1C
1D
Motor Full Load Current
Locked Rotor Current
Locked Rotor Time
Motor Service Factor
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Default Value
Model dependent
600%
00:10 (minutes:seconds)
105%
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Default Value
2 - Start/Stop Modes-1
M
2A
2B
2C
2D
2E
2F
2G
2H
2I
2J
2K
2L
2M
2N
2O
2P
2Q
2R
Start Mode
Current Limit
Initial Current
Start Ramp Time
Adaptive Start Profile
Kickstart Level
Kickstart Time
Stop Mode
Stop Time
Stop Delay
Adaptive Stop Profile
Adaptive Control Gain
Brake Torque
Brake Time
Auto-Start Type
Auto-Start Time
Auto-Stop Type
Auto-Stop Time
Adaptive Control
350%
350%
00:10 (minutes:seconds)
Constant Acceleration
500%
0 ms
Coast to Stop
00:03 (minutes:seconds)
00:00 (minutes:seconds)
Constant Deceleration
75%
20%
00:01 (minutes:seconds)
Off
00:01 (hours: minutes)
Off
00:01 (hours: minutes)
3 - Digital Inputs
M
3A
3B
3C
3D
3E
3F
3G
3H
3I
3J
3K
3L
3M
3N
3O
Input A Function
Input A Name
Input A Trip
Input A Initial Delay
Input A Trip Delay
Input B Function
Input B Name
Input B Trip
Input B Initial Delay
Input B Trip Delay
Input C Function
Input D Function
Local/Remote
Remote Reset Logic
Comms in Remote
Emergency Stop
Emergency Stop
Always Active
00:00 (minutes:seconds)
00:00 (minutes:seconds)
Input Trip (N/O)
Input Trip
Always Active
00:00 (minutes:seconds)
00:00 (minutes:seconds)
Off
Off
LCL/RMT Anytime
Normally Closed (N/C)
Enable Ctrl in RMT
4 - Digital Outputs
M
4A
4B
4C
4D
4E
4F
4G
4H
4I
4J
4K
4L
Relay A Action
Relay A On Delay
Relay A Off Delay
Relay B Action
Relay B On Delay
Relay B Off Delay
Relay C Action
Relay C On Delay
Relay C Off Delay
Relay D Action
Relay E Action
Relay F Action
Main Contactor
00:00 (minutes:seconds)
00:00 (minutes:seconds)
Run
00:00 (minutes:seconds)
00:00 (minutes:seconds)
Trip
00:00 (minutes:seconds)
00:00 (minutes:seconds)
Off
Off
Off
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5 - Protection Settings
M
5A
5B
5C
5D
5E
5F
5G
5H
5I
5J
5K
5L
Excess Start Time
Excess Start Time-2
Current Imbalance
Phase Sequence
Underpower
Overpower
Undervoltage
Overvoltage
Frequency Check
Frequency Variation
Ground Fault Level
Motor Temperature Check
00:20 (minutes:seconds)
00:20 (minutes:seconds)
30%
Any Sequence
20%
400%
100 V
800 V
Start/Run
±5 Hz
100 mA
Do Not Check
6 - Protection Delays
M
6A
6B
6C
6D
6E
6F
6G
6H
Current Imbalance Delay
Underpower Delay
Overpower Delay
Undervoltage Delay
Overvoltage Delay
Frequency Delay
Restart Delay
Ground Fault Delay
00:03 (minutes:seconds)
00:05 (minutes:seconds)
00:00 (minutes:seconds)
00:05 (minutes:seconds)
00:05 (minutes:seconds)
00:01 (minutes:seconds)
00:10 (minutes:seconds)
00:03 (minutes:seconds)
7 - Set Points
M
7A
7B
7C
7D
Low Current Flag
High Current Flag
Motor Temperature Flag
Mains Reference Voltage
50%
100%
80%
400 V
8 - Analog I/O
M
8A
8B
8C
8D
8E
8F
8G
8H
8I
8J
8K
Analog Input Trip
Analog Input Scale
Analog Trip Point
Analog Output A
Analog A Scale
Analog A Maximum Adjustment
Analog A Minimum Adjustment
Analog Output B
Analog B Scale
Analog B Maximum Adjustment
Analog B Minimum Adjustment
Do Not Trip
2-10 V
50%
Current (%FLC)
4-20 mA
100%
0%
Current (%FLC)
4-20 mA
100%
0%
9 - Display
M
9A
9B
9C
9D
9E
9F
9G
9H
9I
9J
9K
9L
9M
Languages
User Screen - Top Left
User Screen - Top Right
User Screen - Bottom Left
User Screen - Bottom Right
Graph Data
Graph Timebase
Graph Maximum Adjustment
Graph Minimum Adjustment
F1 Button Action
F2 Button Action
Current Calibration
Display A or kW
Motor Current
Motor pf
Hours Run
kWh
Current (%FLC)
10 seconds
400%
0%
Auto-Start/Stop Menu
None
100%
Current
10A
10B
10C
10D
Auto-Reset Action
Maximum Resets
Reset Delay Groups A&B
Reset Delay Group C
Do Not Auto-Reset
1
00:05 (minutes:seconds)
5 minutes
10 - Auto-Reset
42
M
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Parameter Group
Default Value
11 - Secondary Motor Set
M
11A
11B
11C
11D
11E
Motor FLC-2
Dual Thermal Model
Locked Rotor Current-2
Locked Rotor Time-2
Motor Service Factor-2
Model dependent
Single
600%
00:10 (minutes:seconds)
105%
12 - Start/Stop Modes-2
M
12A
12B
12C
12D
12E
12F
12G
12H
12I
12J
12K
12L
12M
12N
Start Mode-2
Current Limit-2
Initial Current-2
Start Ramp-2
Adaptive Start Profile-2
Kickstart Level-2
Kickstart Time-2
Stop Mode-2
Stop Time-2
Stop Delay-2
Adaptive Stop Profile-2
Adaptive Control Gain-2
Brake Torque-2
Brake Time-2
Adaptive Control
350%
350%
00:10 (minutes:seconds)
Constant Acceleration
500%
0 ms
Coast to Stop
00:03 (minutes:seconds)
00:00 (minutes:seconds)
Constant Deceleration
75%
20%
00:01 (minutes:seconds)
13 - Slip-Ring Motors
M
13A
13B
13C
13D
Motor Data-1 Ramp
Motor Data-2 Ramp
Slip Ring Retard
Changeover Time
Single Ramp
Single Ramp
50%
150 ms
14 - RTD/PT100
M
14A
14B
14C
14D
14E
14F
14G
RTD/PT100 A °C
RTD/PT100 B °C
RTD/PT100 C °C
RTD/PT100 D °C
RTD/PT100 E °C
RTD/PT100 F °C
RTD/PT100 G °C
50 °C
50 °C
50 °C
50 °C
50 °C
50 °C
50 °C
15 - Restricted
M
15A
15B
15C
15D
15E
Access Code
Emergency Run
Adjustment Lock
Shorted SCR Action
Jog Torque
0000
Disable
Read & Write
3-Phase Control Only
50%
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16 - Protection Action
M
16A
16B
16C
16D
16E
16F
16G
16H
16I
16J
16K
16L
16M
16N
16O
16P
16Q
16R
16S
16T
16U
16V
16W
7.7
Parameter descriptions
7.7.1
Group 1 - Primary Motor Set
WARNING
No
1A
Motor Overload
Excess Start Time
Current Imbalance
Underpower
Overpower
Undervoltage
Overvoltage
Frequency
Input A Trip
Input B Trip
Motor Thermistor
Starter Communication
Network Communication
Heatsink Overtemperature
Battery/Clock
Ground Fault
RTD/PT100 A
RTD/PT100 B
RTD/PT100 C
RTD/PT100 D
RTD/PT100 E
RTD/PT100 F
RTD/PT100 G
Default Value
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
Trip Starter
The motor data parameters are critical to the correct operation of the soft starter's thermal model, and to the motor
overload protection. Always set Pr 1A to suit the motor's characteristics. The default settings of Pr 1B, 1C and 1D are
suitable for most applications. Consult the motor datasheet before changing these settings.
Function
Motor Full Load Current
Range
Model dependent
Default
Model dependent
Matches the starter to the connected motor's full load current. Set to the full load current (FLC) rating shown on the motor
nameplate.
No
1B
Function
Locked Rotor Current
Range
400 to 1200% FLC
Default
600%
Sets the locked rotor current of the connected motor, as a percentage of full load current. Set according to the motor datasheet.
No
1C
Function
Locked Rotor Time
Range
00:01 to 02:00 (minutes:seconds)
Default
00:10
Sets the maximum length of time the motor can run at locked rotor current from cold before reaching its maximum temperature. Set
according to the motor datasheet.
No
1D
Function
Motor Service Factor
Range
100 to 130% FLC
Default
105%
Sets the motor service factor used by the thermal model. If the motor runs at full load current, it will reach 100%. Set according to
the motor datasheet.
7.7.2
Group 2 - Start/Stop Modes-1
For details of soft start and stop control methods, see Soft start methods on page 29 and Stop methods on page 32.
No
2A
Function
Start Mode
Range
Constant Current, Adaptive Control
Default
Adaptive Control
Range
100 to 600% FLC
Default
350%
Selects the soft start mode.
No
2B
Function
Current Limit
Sets the current limit for constant current and current ramp soft starting, as a percentage of motor full load current.
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Data
Function
Range
100 to 600% FLC
Initial Current
Default
350%
Sets the initial start current level for current ramp starting, as a percentage of motor full load current. Set so that the motor begins to
accelerate immediately after a start is initiated.
If current ramp starting is not required, set the initial current equal to the current limit.
No
2D
Function
Start Ramp Time
Range
00:01 to 03:00 (minutes:seconds)
Default
00:10
Sets the total start time for an Adaptive Acceleration Control start or the ramp time for current ramp starting (from the initial current
to the current limit).
No
2E
Function
Adaptive Start Profile
Range
Early Acceleration, Constant Acceleration,
Late Acceleration
Default
Constant Acceleration
Selects which profile the Digistart IS will use for an Adaptive Acceleration Control soft start.
No
2F
Function
Kickstart Level
Range
100 to 700% FLC
Default
500%
Range
0 to 2000 ms
Default
0
Sets the level of the kickstart current.
No
2G
Function
Kickstart Time
Sets the kickstart duration. A setting of 0 disables kickstart.
Kickstart subjects the mechanical equipment to increased torque levels. Ensure the motor, load and couplings can
handle the additional torque before using this feature.
CAUTION
No
2H
Function
Range
Coast To Stop, TVR Soft Stop, Adaptive
Control, Brake, STV Soft Stop
Default
Coast To Stop
Function
Range
00:00 to 04:00 (minutes:seconds)
Default
00:03
Stop Mode
Selects the stop mode.
No
2I
Stop Time
Sets the time for soft stopping the motor using timed voltage ramp or Adaptive Deceleration Control.
If a main contactor is installed, the contactor must remain closed until the end of the stop time. Use the run output (terminals COM2,
RLO2) to control the main contactor. Sets the total stopping time when using brake.
No
2J
Function
Range
00:00 to 01:00 (minutes:seconds)
Stop Delay
Default
00:00
Sets a delay after the starter receives a stop command, before it stops the motor.
No
2K
Function
Adaptive Stop Profile
Range
Early Deceleration, Constant Deceleration,
Late Deceleration
Default
Constant Deceleration
Selects which profile the Digistart IS will use for an Adaptive Deceleration Control soft stop.
No
2L
Function
Adaptive Control Gain
Range
1 to 200%
Default
75%
Adjusts the performance of Adaptive Control. This setting affects both starting and stopping control.
NOTE
No
2M
We recommend leaving the gain setting at the default level unless performance is not satisfactory.
If the motor accelerates or decelerates too quickly at the end of a start or stop, increase the gain setting by 5% to 10%.
If the motor speed fluctuates during starting or stopping, decrease the gain setting slightly.
Function
Range
20 to 100%
Brake Torque
Default
20%
Sets the amount of brake torque the Digistart IS will use to slow the motor.
No
2N
Function
Range
00:01 to 00:30 (minutes:seconds)
Brake Time
Default
00:01
Sets the duration for DC injection during a braking stop.
<
NOTE
Pr 2N is used in conjunction with Pr 2I. See Brake on page 35 for details.
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Data
Auto-start and auto-stop
The Digistart IS can be programmed to start and stop automatically, after a specified delay or at a specified time of day. Auto-start
and auto-stop can be set separately. Auto-start/stop is only available in Remote mode.
WARNING
No
2O
This function should not be used in conjunction with remote two-wire control.
The soft starter will still accept start and stop commands from the keypad, remote inputs or serial communication
network. To disable local or remote control, use Pr 3M.
If auto-start is enabled and the user is in the menu system, auto-start will become active if the menu times out (if no
keypad activity is detected for five minutes).
Function
Auto-Start Type
Range
Off, Timer, Clock
Default
Off
Selects whether the soft starter will auto-start after a specified delay, or at a time of day.
No
2P
Function
Auto-Start Time
Range
00:01 to 24:00 (hours:minutes)
Default
00:01
Sets the time for the soft starter to auto-start, in 24 hour clock format.
No
2Q
Function
Auto-Stop Type
Range
Off, Timer, Clock
Default
Off
Selects whether the soft starter will auto-stop after a specified delay, or at a time of day.
No
2R
Function
Auto-Stop Time
Range
00:01 to 24:00 (hours:minutes)
Default
00:01
Sets the time for the soft starter to auto-stop, in 24 hour clock format.
7.7.3
Group 3 - Digital Inputs
The Digistart IS has two programmable inputs, which allow remote control of the soft starter. If required, two extra inputs are
available on the input/output expansion card.
No
3A
Function
Input A Function
Selects the function of Input A.
Motor Set Select
Input Trip (N/O)
Input Trip (N/C)
Local/Remote Select
Emergency Run
Emergency Stop
Jog Forward
Jog Reverse
46
Range
Motor Set Select, Input Trip (N/O), Input
Trip (N/C), Local/Remote Select,
Emergency Run, Emergency Stop, Jog
Forward, Jog Reverse
Default
Emergency Stop
The Digistart IS can be configured with two separate sets of motor data.
To use the secondary motor data, Pr 3A must be set to Motor Set Select and
DI4, +24V must be closed when a start command is given. The Digistart IS
checks which motor data to use at a start, and will use that motor data for the
entire start/stop cycle.
Input A can be used to trip the soft starter. When Pr 3A is set to Input Trip
(N/O), a closed circuit across DI4, +24V trips the soft starter.
When Pr 3A is set to Input Trip (N/C), an open circuit across DI4, +24V trips
the soft starter.
Input A can be used to select between local and remote control, instead of
using the LCL/RMT button on the keypad. When the input is open, the starter is
in local mode and can be controlled via the keypad. When the input is closed,
the starter is in remote mode. The Start and LCL/RMT buttons are disabled,
and the soft starter will ignore any Local/Remote select command from the
serial communications network.
To use Input A to select between local and remote control, Pr 3M must be set
to LCL/RMT Anytime or LCL/RMT when Off.
In emergency run the soft starter continues to run until stopped, ignoring all
trips and warnings (see Pr 15B for details).
Closing the circuit across DI4, +24V activates emergency run.
Opening the circuit ends emergency run and the Digistart IS stops the motor.
The Digistart IS can be commanded to emergency stop the motor, ignoring the
soft stop mode set in Pr 2H.
When the circuit across DI4, +24V is opened, the soft starter allows the motor
to coast to stop.
Activates jog operation in a forward direction (will operate only in Remote
mode).
Activates jog operation in reverse direction (will operate only in Remote mode).
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Data
Function
Range
Input Trip, Low Pressure, High Pressure,
Pump Fault, Low Level, High Level, No
Flow, Emergency Stop, Controller, PLC,
Vibration Alarm
Input A Name
Default
Emergency Stop
Selects a message for the keypad to display when Input A is active. This setting is only relevant if Pr 3A is set to input trip (N/O or
N/C).
No
3C
Function
Selects when an input trip can occur.
Always Active
Operating Only
Run Only
No
3D
Range
Always Active, Operating Only, Run Only
Input A Trip
Default
Always Active
A trip can occur at any time when the soft starter is receiving power.
A trip can occur while the soft starter is running, stopping or starting.
A trip can only occur while the soft starter is running.
Function
Input A Initial Delay
Range
00:00 to 30:00 (minutes:seconds)
Default
00:00
Sets a delay before an input trip can occur. The initial delay is counted from the time a start signal is received. The state of the input
is ignored until the initial delay has elapsed.
No
3E
Function
Input A Trip Delay
Range
00:00 to 04:00 (minutes:seconds)
Default
00:00
Sets a delay between the input activating and the soft starter tripping.
No
3F
Function
Input B Function
3G
Input B Name
3H
3I
3J
Input B Trip
Input B Initial Delay
Input B Trip Delay
Range
Motor Set Select, Input Trip (N/O), Input
Trip (N/C), Local/Remote Select,
Emergency Run, Emergency Stop, Jog
Forward, Jog Reverse
Input Trip, Low Pressure, High Pressure,
Pump Fault, Low Level, High Level, No
Flow, Emergency Stop, Controller, PLC,
Vibration Alarm
Always Active, Operating Only, Run Only
00:00 to 30:00 (minutes:seconds)
00:00 to 04:00 (minutes:seconds)
Default
Input Trip (N/O)
Range
Motor Set Select, Local/Remote
Select, Emergency Run, Emergency Stop,
Off
Default
Off
Input Trip
Always Active
00:00
See Pr 3A to 3E for details of parameter options.
No
3K
3L
Function
Input C Function
Input D Function
See Pr 3A for details of parameter options.
NOTE
No
3M
Inputs C and D are only available if the input/output expansion card is installed.
Function
Local/Remote
Range
LCL/RMT Anytime, LCL/RMT When Off,
Local Control Only, Remote Control Only
Default
LCL/RMT Anytime
Selects when the LCL/RMT button can be used to switch between local and remote control, and enables or disables the local
control buttons and remote control inputs.
The STOP button on the keypad is always enabled.
LCL/RMT Anytime
LCL/RMT When Off
Local Control Only
Remote Control Only
LCL/RMT button is always enabled.
LCL/RMT button is enabled when the starter is off.
All remote inputs are disabled.
Local control buttons (START, RESET, LCL/RMT) are disabled.
The STOP button on the keypad is always enabled. When using two-wire remote control, the soft starter will restart if
the remote start/stop and reset inputs are still active.
CAUTION
No
3N
Function
Remote Reset Logic
Range
Normally Closed (N/C), Normally Open
(N/O)
Default
Normally Closed
Selects whether the Digistart IS's remote reset input (terminals DI3, +24V) is normally open or normally closed.
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Function
Comms in Remote
Range
Disable Ctrl in RMT, Enable Ctrl in RMT
Default
Enable Ctrl in RMT
Selects whether the starter will accept Start and Stop commands from the serial communication network when in Remote mode.
The Reset, Force Comms Trip and Local/Remote Control commands are always enabled.
7.7.4
Group 4 - Digital Outputs
The Digistart IS has three programmable outputs, which can be used to signal different operating conditions to associated
equipment. Three additional outputs are available on the input/output expansion card.
No
4A
Function
Relay A Action
Range
Off, Main Contactor, Run, Trip, Warning,
Low Current Flag, High Current Flag, Motor
Temp Flag, Input A Trip, Input B Trip, Motor
Overload, Current Imbalance, Underpower,
Overpower, Frequency, Ground Fault,
Heatsink Overtemp, Phase Loss, Motor
Thermistor, Changeover Contactor
Default
Main Contactor
Selects the function of Relay A (normally open). Relay A is terminals COM1, RLO1.
Off
Relay A is not used.
Main Contactor
The relay closes when the Digistart IS receives a start command,
and remains closed as long as the motor is receiving voltage.
Run
The relay closes when the starter changes to run state.
Trip
The relay closes when the starter trips.
Warning
The relay closes when the starter issues a warning.
Low Current Flag
The relay closes when the low current flag activates (see Pr 7A
Low Current Flag).
High Current Flag
The relay closes when the high current flag activates (see Pr 7B
High Current Flag).
Motor Temp Flag
The relay closes when the motor temperature flag activates (see
Pr 7C Motor Temperature Flag).
Input A Trip
The relay closes when Input A activates to trip the soft starter.
Input B Trip
The relay closes when Input B activates to trip the soft starter.
Motor Overload
The relay closes when the starter trips on Motor Overload.
Current Imbalance
The relay closes when the starter trips on Current Imbalance.
Underpower
The relay closes when the starter trips on Underpower.
Overpower
The relay closes when the starter trips on Overpower.
Frequency
The relay closes when the starter trips on Frequency.
Ground Fault
The relay closes when the starter trips on Ground Fault.
Heatsink Overtemp
The relay closes when the starter trips on Heatsink
Overtemperature.
Phase Loss
The relay closes when the starter trips on Phase Loss.
Motor Thermistor
The relay closes when the starter trips on Motor Thermistor.
Changeover Contactor
The relay closes when the high rotor resistance current ramp has
reached full voltage, allowing use with a slip-ring motor.
No
4B
4C
Function
Relay A On Delay
Relay A Off Delay
Range
00:00 to 05:00 (minutes:seconds)
Default
00:00
Range
Off, Main Contactor, Run, Trip, Warning,
Low Current Flag, High Current Flag, Motor
Temp Flag, Input A Trip, Input B Trip,
Motor Overload, Current Imbalance,
Underpower, Overpower, Frequency,
Ground Fault, Heatsink Overtemp, Phase
Loss, Motor Thermistor, Changeover
Contactor
00:00 to 05:00 (minutes:seconds)
Default
Run
Sets the delay for closing or re-opening Relay A.
No
4D
Function
Relay B Action
4E
4F
Relay B On Delay
Relay B Off Delay
00:00
See Pr 4A to 4C for details of parameter options.
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No
4G
Function
Relay C Action
4H
4I
Relay C On Delay
Relay C Off Delay
Range
Off, Main Contactor, Run, Trip, Warning,
Low Current Flag, High Current Flag, Motor
Temp Flag, Input A Trip, Input B Trip,
Motor Overload, Current Imbalance,
Underpower, Overpower, Frequency,
Ground Fault, Heatsink Overtemp, Phase
Loss, Motor Thermistor, Changeover
Contactor
00:00 to 05:00 (minutes:seconds)
Default
Trip
Range
Off, Main Contactor, Run, Trip,
Warning, Low Current Flag, High
Current Flag, Motor Temp Flag, Input A
Trip, Input B Trip, Motor Overload, Current
Imbalance, Underpower, Overpower,
Frequency, Ground Fault, Heatsink
Overtemp, Phase Loss, Motor Thermistor,
Changeover Contactor
Default
00:00
See Pr 4A to 4C for details of parameter options.
No
4J
4K
4L
Function
Relay D Action
Relay E Action
Relay F Action
Off
See Pr 4A for details of parameter options.
NOTE
7.7.5
Outputs D, E and F are only available if the input/output expansion card is installed.
Group 5 - Protection Settings
These parameters determine when the soft starter's protection mechanisms will activate. The activation point for each protection
mechanism can be set to suit the installation.
The soft starter responds to protection events by tripping, warning, or writing the event to the event log. The response is determined
by the Protection Action settings (parameter group 16). The default response is a trip.
The protection settings are vital for safe operation of the soft starter and motor. Defeating the protection may
compromise the installation and should only be done in the case of emergency.
CAUTION
No
5A
5B
Function
Excess Start Time
Excess Start Time-2
Range
00:00 to 04:00 (minutes:seconds)
Default
00:20
Excess start time is the maximum time the Digistart IS will attempt to start the motor. If the motor does not transition to Run mode
within the programmed limit, the starter will trip. Set for a period slightly longer than required for a normal healthy start. A setting of 0
disables excess start time protection.
Pr 5A sets the time for the primary motor and Pr 5B sets the time for the secondary motor.
No
5C
Function
Current Imbalance
Range
10 to 50%
Default
30%
Sets the trip point for current imbalance protection.
The Digistart IS can be configured to trip if the currents on the three phases vary from each other by more than a specified amount.
The imbalance is calculated as the difference between the highest and lowest currents on all three phases, as a percentage of the
highest current.
Current imbalance detection is desensitised by 50% during starting and soft stopping.
No
5D
Function
Phase Sequence
Range
Any Sequence, Positive Only, Negative
Only
Default
Any Sequence
Selects which phase sequences the soft starter will allow at a start. During its pre-start checks, the starter examines the sequence of
the phases at its input terminals and trips if the actual sequence does not match the selected option.
No
5E
Function
Underpower
Range
0 to 100%
Default
20%
Range
80 to 600%
Default
400%
Sets the trip point for underpower protection. Set as required.
No
5F
Function
Overpower
Sets the trip point for overpower protection. Set as required.
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Data
Function
Range
100 to 690 V
Undervoltage
Default
100 V
Sets the trip point for undervoltage protection. Set as required.
NOTE
No
5H
Voltage protection and calibration only operate if the voltage measurement card is fitted.
Function
Range
100 to 800 V
Overvoltage
Default
800 V
Sets the trip point for overvoltage protection. Set as required.
NOTE
No
5I
Voltage protection and calibration only operate if the voltage measurement card is fitted.
Function
Frequency Check
Range
Do Not Check, Start Only, Start/Run, Run
Only
Default
Start/Run
Determines when and if the starter will monitor for a frequency trip.
No
5J
Function
Frequency Variation
Range
±2, ±5, ±10, ±15 Hz
Default
±5 Hz
Selects the soft starter's tolerance for frequency variation.
Running a motor outside its specified frequency for long periods can cause damage and premature failure.
CAUTION
No
5K
Function
Ground Fault Level
Range
20mA, 30mA, 50mA, 75mA, 100mA,
150mA, 200mA, 300mA, 500mA, 750mA,
1A, 1.5A, 2A, 3A, 5A, 7.5A, 10A, 15A, 20A,
30A, 50A
Default
100mA
Sets the trip point for ground fault protection.
The Digistart IS can be configured to trip if ground fault exceeds a specified level while the motor is running. Ground fault is a
dynamic trip based on phase current measurements every half-cycle.
NOTE
No
5L
Ground fault protection is only available if the RTD/PT100 and ground fault protection card is fitted.
Function
Motor Temperature Check
Range
Do Not Check, Check
Default
Do Not Check
Selects whether the Digistart IS will verify the motor has sufficient thermal capacity for a successful start. The soft starter compares
the motor's calculated temperature with the temperature rise from the last motor start and only operates if the motor is cool enough
to start successfully.
7.7.6
Group 6 - Protection Delays
Protection delays slows the Digistart IS's response to the trip condition, avoiding trips due to momentary fluctuations.
No
6A
6B
6C
6D
6E
6F
Function
Current Imbalance Delay
Underpower Delay
Overpower Delay
Undervoltage Delay
Overvoltage Delay
Frequency Delay
No
6G
Restart Delay
Function
Range
00:00 to 04:00 (minutes:seconds)
00:00 to 04:00 (minutes:seconds)
00:00 to 01:00 (minutes:seconds)
00:00 to 04:00 (minutes:seconds)
00:00 to 04:00 (minutes:seconds)
00:00 to 04:00 (minutes:seconds)
Default
00:03
00:05
00:00
00:05
00:05
00:01
Range
00:01 to 60:00 (minutes:seconds)
Default
00:10
The Digistart IS can be configured to force a delay between the end of a stop and the beginning of the next start. During the restart
delay period, the display shows the time remaining before another start can be attempted.
No
6H
NOTE
50
Function
Ground Fault Delay
Range
00:01 to 04:00 (minutes:seconds)
Default
00:03
Ground fault protection is only available if the RTD/PT100 and ground fault protection card is fitted.
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Group 7 - Set Points
The Digistart IS has low and high current flags to give early warning of abnormal operation. The current flags can be configured to
indicate an abnormal current level during operation, outside the normal operating level. The flags can signal the situation to external
equipment via one of the programmable outputs. The flags clear when the current returns within the normal operating range by 10%
of the programmed motor full load current.
No
7A
7B
7C
Function
Low Current Flag
High Current Flag
Motor Temperature Flag
Range
1% to 100% FLC
50% to 600% FLC
0% to 160%
Default
50%
100%
80%
Sets the level at which the motor temperature flag operates, as a percentage of the motor's thermal capacity.
No
7D
Function
Mains Reference Voltage
Range
100 V to 690 V
Default
400 V
Sets the nominal mains voltage for the keypad's monitoring functions. This is used to calculate motor kilowatts and kilovolt amperes
(kVA) but does not affect the Digistart IS's motor control or protection.
If the voltage measuring card is installed, the Digistart IS will use measured voltage instead.
7.7.8
Group 8 - Analog I/O
The Digistart IS has one analog output (terminals AO1, 0V).
If required, a second analog output and an analog input are available on the input/output expansion card.
No
8A
Function
Analog Input Trip
Range
Do Not Trip, Trip High, Trip Low
Default
Do Not Trip
Selects the soft starter's response to the analog input signal. The soft starter can be configured to trip if the voltage measured at the
analog input falls below or rises above the level set in Pr 8C Analog Trip Point (as a percentage of the maximum value of Pr 8B
Analog Input Scale).
No
8B
Function
Analog Input Scale
Range
0-10, 2-10 V
Default
2-10 V
Range
0 to 100%
Default
50%
Selects the scale of the analog input.
No
8C
Function
Analog Trip Point
Sets the signal level at which an analog input trip will occur, as a percentage of the maximum signal on the input.
NOTE
No
8D
The analog input is only available if the input/output expansion card is installed.
Function
Analog Output A
Range
Current (%FLC), Motor Temp (%), Motor
kW (%), Motor kVA (%), Motor pf, Voltage
(%Mains)
Default
Current (%FLC)
Selects which information will be reported via the analog output.
Current (% FLC)
Current as a percentage of motor full load current.
Motor Temp (%)
Motor temperature as a percentage of the motor service factor
(calculated by the soft starter's thermal model).
Motor kW (%)
Motor kilowatts. 100% is motor FLC (Pr 1A) multiplied by line voltage
(measured voltage if the voltage measurement card is installed,
otherwise reference voltage, Pr 7D). Power factor is assumed to be
1.0.
3 . V . IFLC . pf
1000
Motor kVA (%)
Motor kilovolt amperes. 100% is motor FLC (Pr 1A) multiplied by line
voltage (measured voltage if the voltage measurement card is installed,
otherwise reference voltage, Pr 7D).
3 . V . IFLC
1000
Motor pf
Motor power factor, measured by the soft starter.
Voltage (% Mains)
The average voltage measured on three phases (this information is
only available if the voltage measurement option is installed).
No
8E
Function
Analog A Scale
Range
0-20, 4-20 mA
Default
4-20 mA
Selects the range of the analog output.
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Function
Analog A Maximum Adjustment
Analog A Minimum Adjustment
Range
0 to 600%
Default
100%
0%
Calibrates the analog output to match the signal measured on an external current measuring device.
No
8H
Function
Analog Output B
8I
8J
8K
Analog B Scale
Analog B Maximum Adjustment
Analog B Minimum Adjustment
Range
Current (%FLC), Motor Temp (%), Motor
kW (%), Motor kVA (%), Motor pf, Voltage
(%Mains)
0-20, 4-20 mA
0 to 600%
Default
Current (%FLC)
4-20 mA
100%
0%
See Pr 8D to 8G for details of parameter options.
NOTE
7.7.9
No
9A
Analog Output B is only available if the input/output expansion card is installed.
Group 9 - Display
Function
Languages
Range
English, Français, Italiano, Deutsch,
Español, Chinese
Default
Selects which language the keypad will use to display messages and feedback.
No
9B
Function
User Screen - Top Left
Range
Blank, Starter State, Motor Current, Motor
pf, Mains Frequency, Motor kW, Motor HP,
Motor Temp, kWh, Hours Run, Analog
Input, Mains Voltage, Motor kVA, % Rated
kW, Motor Parameter Set
Default
Motor Current
Selects which information will be displayed on the programmable monitoring screen.
Blank
Starter State
Motor Current
Motor pf
Mains Frequency
Motor kW
Motor HP
Motor Temp
kWh
Hours Run
Analog Input
Mains Voltage
Motor kVA
% Rated kW
Motor Parameter Set
No
9C
Function
User Screen - Top Right
9D
User Screen - Bottom Left
9E
User Screen - Bottom Right
52
Displays no data in the selected area, allowing long messages to be shown without
overlapping.
The starter's operating state (starting, running, stopping or tripped). Only available
for top left and bottom left positions on the screen.
The average current measured on three phases.
The motor's power factor, measured by the soft starter.
The average frequency measured on three phases.
The motor's running power in kilowatts.
The motor's running power in horsepower.
The motor's temperature, calculated by the thermal model.
The number of kilowatt hours the motor has run via the soft starter.
The number of hours the motor has run via the soft starter.
The level of analog input A (see Pr 8A to 8C). This setting is only available if the
input/output expansion option is installed.
The average voltage measured on three phases (this setting is only available if the
voltage measurement option is installed).
The motor's apparent running power in kVA.
The motor's running power as a percentage of rated kW. Power factor is assumed to
be 1.0 at 100% kW.
Whether the starter is controlling the motor using the primary motor set (M1) or the
secondary motor set (M2).
Range
Default
Motor pf
Blank, Motor Current, Motor pf, Mains
Frequency, Motor kW, Motor HP, Motor
Temp, kWh, Hours Run, Analog Input,
Mains Voltage, Motor kVA, % Rated kW
Hours Run
Blank, Starter State, Motor Current, Motor
pf, Mains Frequency, Motor kW, Motor HP,
Motor Temp, kWh, Hours Run, Analog
Input, Mains Voltage, Motor kVA, % Rated
kW, Motor Parameter Set
kWh
Blank, Motor Current, Motor pf, Mains
Frequency, Motor kW, Motor HP, Motor
Temp, kWh, Hours Run, Analog Input,
Mains Voltage, Motor kVA, % Rated kW
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Data
No
9F
Function
Range
Current (%FLC), Motor Temp (%), Motor
kW (%), Motor kVA (%), Motor pf, Voltage
(%Mains)
Graph Data
Default
Current (%FLC)
Selects which information the graph will display. See Pr 8D for details of parameter options.
No
9G
Function
Graph Timebase
Range
10 seconds, 30 seconds, 1 minute, 5
minutes, 10 minutes, 30 minutes, 1 hour
Default
10 seconds
Sets the graph time scale. The graph will progressively replace the old data with new data.
No
9H
9I
Function
Graph Maximum Adjustment
Graph Minimum Adjustment
Range
0 to 600%
Default
400%
0%
Range
None, Setup Auto-Start/Stop
Jog Forward, Jog Reverse
Default
Setup Auto-Start/Stop
None
Adjusts the upper and lower limits of the performance graph.
No
9J
9K
Function
F1 Button Action
F2 Button Action
Selects the function of the shortcut buttons on the keypad.
If the adjustment lock is on (Pr 15C Adjustment Lock is set to Read Only), users will not be able to change the
auto-start/stop settings.
NOTE
No
9L
Function
Current Calibration
Range
80 to 115%
Default
100%
Calibrates the soft starter's current monitoring circuits to match an external current metering device.
Calibration (%) =
e.g. 102% =
Current shown on Digistart IS display
Current measured by external device
66A
65A
This adjustment affects all current-based functions and protections.
NOTE
No
9M
Function
Display A or kW
Range
Current, Motor kW
Default
Current
Selects whether the Digistart IS will display current (amperes) or motor kilowatts on the main monitoring screen.
7.7.10 Group 10 - Auto-Reset
The Digistart IS can be programmed to automatically reset certain trips, which can help minimise operating downtime. Trips are
divided into three categories for auto-reset, depending on the risk to the soft starter:
Table 7-5 Auto-reset groups
Group
A
B
C
Trips
Current Imbalance
Phase loss
Power loss
Frequency
Underpower
Overpower
Input A trip
Input B trip
Motor overload
RTD/PT100 temperature trips
Motor thermistor
Heatsink overtemperature
Other trips cannot be automatically reset.
No
10A
Function
Auto-Reset Action
Range
Do Not Auto-Reset, Reset Group A, Reset
Group A & B, Reset Group A, B & C
Default
Do Not Auto-Reset
Selects which trips can be auto-reset.
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Data
Function
Maximum Resets
Range
1 to 5
Default
1
Sets how many times the soft starter will auto-reset, if it continues to trip. The reset counter increases by one each time the soft
starter auto-resets, and decreases by one after each successful start/stop cycle.
No
10C
10D
Function
Reset Delay Groups A&B
Reset Delay Group C
Range
00:05 to 15:00 (minutes:seconds)
5 to 60 minutes
Default
00:05
5
The Digistart IS can be configured to wait before auto-resetting a trip. Separate delays can be set for trips in Groups A and B, or in
Group C.
7.7.11 Group 11 - Secondary Motor Set
The Digistart IS can support two different starting and stopping motor data sets.

To use the Digistart IS with two separate motors (such as a duty-standby configuration), use Pr 11B to select dual thermal
modelling and configure Pr 11A to 12N to suit the second motor.

To use the Digistart IS with two different motor data sets for the same motor (for dual speed motors or applications where
starting conditions may vary), use Pr 11B to select a single thermal model, and configure the starting and stopping profiles as
required in Pr 12A to 12N. The soft starter will ignore Pr 11A to 11E and will use settings from the primary motor.
To select the secondary motor data set, a programmable input must be configured to parameter set selection (Pr 3A and 3F) and
the input must be active when the soft starter receives a start signal.
For details of parameter options, see Group 1 - Primary Motor Set on page 44.
NOTE
No
11A
You can only choose which motor data set to use while the soft starter is stopped.
Function
Motor FLC-2
Range
Model dependent
Default
Model dependent
Range
Single, Dual
Default
Single
Sets the secondary motor's full load current.
No
11B
Function
Dual Thermal Model
Activates dual thermal modelling. The dual thermal model is required only if the Digistart IS is controlling two physically separate
motors.
NOTE
No
11C
11D
11E
The second thermal model is only active if Pr 11B Dual Thermal Model is set to 'Dual' and the starter is using the
secondary motor set (a programmable input is set to 'Motor Set Select' and the input is active).
Function
Locked Rotor Current-2
Locked Rotor Time-2
Motor Service Factor-2
Range
400 to 1200% FLC
00:01 to 02:00 (minutes:seconds)
100 to 130%
Default
600%
00:10
105%
7.7.12 Group 12 - Start/Stop Modes-2
For details of soft start and stop control methods, see Soft start methods on page 29 and Stop methods on page 32.
For details of parameter options, see Group 2 - Start/Stop Modes on page 44.
No
12A
12B
12C
12D
12E
Function
Start Mode-2
Current Limit-2
Initial Current-2
Start Ramp-2
Adaptive Start Profile-2
12F
12G
12H
Kickstart Level-2
Kickstart Time-2
Stop Mode-2
12I
12J
12K
Stop Time-2
Stop Delay-2
Adaptive Stop Profile-2
12L
12M
12N
Adaptive Control Gain-2
Brake Torque-2
Brake Time-2
54
Range
Constant Current, Adaptive Control
100 to 600%
100 to 600%
00:01 to 03:00 (minutes:seconds)
Early Acceleration, Constant Acceleration,
Late Acceleration
100 to 700% FLC
0 to 2000 ms
Coast To Stop, TVR Soft Stop, Adaptive
Control, Brake, STV Soft Stop
00:01 to 04:00 (minutes:seconds)
00:00 to 01:00 (minutes:seconds)
Early Deceleration, Constant Deceleration,
Late Deceleration
1 to 200%
20 to 100%
00:01 to 00:30 (minutes:seconds)
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Default
Adaptive Control
350%
350%
00:10
Constant Acceleration
500%
0 ms
Coast To Stop
00:03
00:00
Constant Deceleration
75%
20%
00:01
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7.7.13 Group 13 - Slip Ring Motors
No
13A
13B
Function
Motor Data-1 Ramp
Motor Data-2 Ramp
Range
Single Ramp, Dual Ramp
Default
Single Ramp
Selects whether to use a single or dual current ramp profile for soft starting. Set to single ramp for non-slip ring induction motors, or
dual ramp for slip-ring induction motors. Pr 13A selects the ramp configuration for the primary motor and Pr 13B selects the ramp
configuration for the secondary motor.
No
13C
Function
Slip Ring Retard
Range
10 to 90%
Default
50%
Sets the level of conduction while the rotor resistor closes, as a percentage of full conduction.
Set so that no current pulse occurs, but the motor retains enough speed to start correctly.
No
13D
Function
Changeover Time
Range
100 to 500 ms
Default
150 ms
Sets the delay between the rotor resistance relay closing and the low resistance current ramp starting. Set so that the contactor has
enough time to close, but the motor does not slow down.
Pr 13D only applies if Pr 13A or 13B is set to 'Dual Ramp', and an output relay is set to 'Changeover Contactor'.
7.7.14 Group 14 - RTD/PT100
The Digistart IS has one RTD/PT100 input and can be fitted with another six PT100 inputs by using the RTD/PT100 and ground
fault protection card. The inputs can trip the soft starter when the temperature exceeds a specified point, and different trip
temperatures can be set for each input.
PT100 inputs B to G are only available if the RTD/PT100 and ground fault protection card has been installed.
No
14A
14B
14C
14D
14E
14F
14G
Function
RTD/PT100 A °C
RTD/PT100 B °C
RTD/PT100 C °C
RTD/PT100 D °C
RTD/PT100 E °C
RTD/PT100 F °C
RTD/PT100 G °C
Range
Default
50 to 250 °C
50 °C
Range
0 to 9999
Default
0000
Sets the trip points for the RTD/PT100 inputs.
7.7.15 Group 15 - Restricted
No
15A
Function
Access Code
Sets the access code to control access to restricted sections of the menus.
Use the
and M buttons to select which digit to alter and use the
and
NOTE
No
15B
buttons to change the value.
In the event of a lost access code, contact your supplier for a master access code that allows you to re-program a new
access code.
Function
Emergency Run
Range
Disable, Enable
Default
Disable
Selects whether the soft starter will permit emergency run operation. In emergency run, the soft starter will start (if not already
running) and continue to operate until emergency run ends, ignoring stop commands and trips.
Emergency run is controlled using a programmable input.
Emergency run may compromise starter life.
CAUTION
No
15C
Function
Adjustment Lock
Range
Read & Write, Read Only
Default
Read & Write
Selects whether the keypad will allow parameters to be changed via the Programming Menu.
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Function
Shorted SCR Action
Range
3-Phase Control Only, PowerThrough
Default
3-Phase Control Only
Selects whether the soft starter will allow PowerThrough operation. For critical applications this allows the soft starter to control the
motor with two-phase control, if the soft starter is damaged on one phase. PowerThrough only operates after the soft starter has
tripped on "Lx-Tx Shorted" and has been reset.
PowerThrough uses a two-phase soft start technology and additional care is required when sizing circuit breakers and
protection. Contact your local supplier for assistance.
CAUTION
PowerThrough remains active until '3-Phase Control Only' is reselected.
PowerThrough operation does not support Adaptive Control soft starting or soft stopping. In PowerThrough, the Digistart
IS will automatically select constant current soft starting and timed voltage ramp soft stopping. If PowerThrough is
enabled, Pr 2C and 2B must be set appropriately.
NOTE
No
15E
PowerThrough only operates with in-line connected motors.
Function
Jog Torque
Range
20 to 100%
Default
50%
Sets the torque level for jog operation. See Jog Operation on page 35 for details.
7.7.16 Group 16 - Protection Action
These parameters define how the soft starter will respond to different protection events. The soft starter can trip, issue a warning, or
ignore different protection events as required. All protection events are written to the event log. The default action for all protections
is to trip the soft starter.
Protections 16P Ground Fault and 16R to 16W RTD/PT100 are only available if the RTD/PT100 and ground fault protection card
has been fitted. Protections 16F Undervoltage and 16G Overvoltage are only available if the voltage measurement card has been
fitted.
Defeating the protection may compromise the starter and motor, and should only be done in the case of emergency.
CAUTION
No
16A
16B
16C
16D
16E
16F
16G
16H
16I
16J
16K
16L
16M
16N
16O
16P
16Q
16R
16S
16T
16U
16V
16W
Function
Motor Overload
Excess Start Time
Current Imbalance
Underpower
Overpower
Undervoltage
Overvoltage
Frequency
Input A Trip
Input B Trip
Motor Thermistor
Starter Communication
Network Communication
Heatsink Overtemperature
Battery/Clock
Ground Fault
RTD/PT100 A
RTD/PT100 B
RTD/PT100 C
RTD/PT100 D
RTD/PT100 E
RTD/PT100 F
RTD/PT100 G
Range
Default
Trip Starter, Warn & Log, Log Only
Trip Starter
Selects the soft starter's response to each protection.
56
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7.8
Maintenance tools
7.8.1
Setup tools
NOTE
These functions are protected by the security access code.
Load/Save settings
The Load/Save Settings menu requires an access code and allows users to:



Load the Digistart IS's parameters with default values
Reload previously saved parameter settings from an internal file
Save the current parameter settings to an internal file
In addition to the factory default values file, the Digistart IS can store two user-defined parameter files. These files contain default
values until a user file is saved.
The available options are:
Table 7-6 Load/Save settings options
Load Defaults
Load Backup
Save User Set 1
Load User Set 1
Save User Set 2
Load User Set 2
NOTE
Restores the starter to the factory default settings for all parameters except Pr 9A Language. This
does not reset the access code.
Synchronises parameters between the starter and the keypad. See Synchronising the keypad
and the starter on page 27 for details of the synchronisation process.
Saves the current parameter settings to a file. This file contains default parameter settings until a
user file is saved.
Reloads the parameter settings from User Set 1.
Saves the current parameter settings to a file. This file contains default parameter settings until a
user file is saved.
Reloads the parameter settings from User Set 2.
The saved files and current operating settings are stored in both the keypad and in the soft starter. The keypad will
prompt you to synchronise the settings whenever it is plugged into a new Digistart IS.
To load or save parameter settings:
1. Open the Programming Menu and select Setup Tools. Enter the access code.
2.
Scroll to the required function and press the M button.
3.
At the confirmation prompt, select YES to confirm or NO to cancel and then M to
load/save the selection.
Load Defaults
Load Backup
Save User Set 1
Load Defaults
No
Yes
When the action has been completed, the screen will briefly display a confirmation
message, then return to the status screens.
Set date and time
To set the date and time:
1.
2.
3.
4.
5.
6.
Open the Programming Menu and select Setup Tools. Enter the access code.
Scroll to the date/time screen.
Press the M button to enter edit mode.
buttons to select which part of the date or time to edit.
Press the M and
Use the
and
buttons to change the value.
To save changes, press the M button. The Digistart IS will confirm the changes.
To cancel changes, press the
button.
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Reset thermal models
The Digistart IS's advanced thermal modelling software constantly monitors the motor's performance. This allows the Digistart IS to
calculate the motor's temperature and ability to start successfully at any time. If the Digistart IS is configured for use on two motors,
each motor's temperature is modelled separately.
The thermal model for the active motor can be reset if required.
1. Open the Programming Menu and select Setup Tools. Enter the access code.
Reset Thermal Models
M1 X%
M2 X%
M to Reset
2.
Scroll to Reset Thermal Models and press M.
3.
Use
4.
When the thermal model has been reset, the screen will display a confirmation
message then return to the previous screen.
Do Not Reset
Reset
to select Reset and press M to confirm.
NOTE
This action will reset both thermal models.
NOTE
The second thermal model is only active if Pr 11B Dual Thermal Model is set to 'Dual' and the starter is using the
secondary motor set (a programmable input is set to 'Motor Set Select' and the input is active).
Resetting the motor thermal model may compromise motor life and should only be done in the case of emergency.
CAUTION
7.8.2
Simulations
Software simulation functions let you test the soft starter's operation and control circuits without connecting the soft starter to mains
voltage. The simulations are accessed via the Simulations menu.
The Digistart IS has three simulation functions:

The protection simulation simulates activation of each protection mechanism to confirm that the soft starter and associated
control circuits are responding correctly. See Protection simulation on page 58 for details.

The run simulation simulates a motor starting, running and stopping to confirm that the soft starter and associated equipment
have been installed correctly. The run simulation follows the protection simulations in the Simulations menu. See Run
simulation on page 59 for details.

The output signal simulation simulates output signalling to confirm that outputs and associated control circuits are operating
correctly. The output signal simulation follows the run simulation in the Simulations menu. See Output signal simulations on
page 59 for details.
The simulations are only available when the soft starter is in Ready state, control voltage is available and the keypad is active.
NOTE
Access to the simulation tools is protected by the security access code.
The default access code is 0000.
Protection simulation
To use the protection simulation:
1. Open the Programming Menu and select Simulations.
2.
Use the
3.
Press and hold M to simulate the selected protection.
4.
The screen is displayed momentarily. The soft starter's response depends on the
Protection Action setting (parameter group 16).
5.
Use
58
and
or
buttons to select the protection you want to simulate.
to select another simulation, or press
0.0A
Tripped
Selected Protection
to exit.
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Run simulation
You can end the simulation at any time by pressing
.
To use the run simulation:
Run Simulation
Ready
Apply Start Signal
1.
2.
3.
Open the Programming Menu and select Simulations.
Scroll to Run Simulation and press M.
Press START or activate the start input.
4.
If the Mains voltage is connected an error message is shown. Remove the Mains
voltage and proceed to next step.
5.
Press M. The Digistart IS simulates its pre-start checks and closes the main
contactor (if installed). The Run LED flashes.
Run Simulation
Pre-Start Checks
STORE to Continue
6.
Press M. The Digistart IS simulates starting. The Run LED flashes.
Run Simulation
Starting X:XXs
STORE to Continue
7.
Press M. The Digistart IS simulates running. The Run LED stays on without
flashing and the bypass relays close.
Run Simulation
Running
Apply Stop Signal
8.
Press STOP or activate the stop input. The Digistart IS simulates stopping. The
Run LED flashes.
Run Simulation
Stopping X:XXs
STORE to Continue
9.
Press M to finish the simulation and exit. The Ready LED flashes.
Run Simulation
Stopped
STORE to Continue
Run Simulation
ATTENTION!
Remove Mains Volts
STORE to Continue
Output signal simulations
The following outputs are available to simulate:









Programmable relay A
Programmable relay B
Programmable relay C
Run relay
Low current flag
High current flag
Motor temperature flag
Analog output A
Analog output B
NOTE
To test operation of the flags (motor temperature and low/high current), set an output relay to the appropriate function
and monitor the relay's behaviour.
To use the signal simulation:
1. Open the Menu and select Simulation.
2.
Use the
3.
Use the
and
buttons to turn the signal on and off.
To confirm correct operation, monitor the state of the output.
4.
Press
and
buttons to select a function to simulate, then press M.
Prog Relay A
Off
On
to return to the simulation list.
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The analog output simulation uses the
and
buttons to change the current at the analog output terminals.
Analog Output A
0%
4.0mA
Attach a current measuring device to the analog output terminals. Use the
or
button to adjust the percentage value on the
display. The current measuring device should indicate the same level of current as shown on the display.
If the input/output expansion card is fitted, the simulation can also be used to test the operation of Relays D, E, F and Analog
Output B.
7.8.3
I/O state
Analog I/O state
Analog I/O State
Input: - - - - %
Output A: 04.0mA
This screen shows the current status of the Analog I/O
This screen will also show Analog Output B if the expansion card is fitted.
Digital I/O state
This screen shows the current status of the digital inputs and outputs.
Digital I/O State
Inputs: 0110000
Outputs: 0000100
The top line of the screen shows the start, stop, reset and programmable inputs (A and B, then inputs on the I/O expansion card (if
fitted).
The bottom line of the screen shows programmable output A, the fixed Run output, programmable inputs B and C, then the outputs
on the expansion card (if fitted).
Temperature sensors state
This screen shows the state of the motor thermistors and RTD/PT100s.
Temp Sensors State
Thermistor: O
RTD/PT100s:OOOOOOO
S = Shrt H=Hot C=Cld O=Opn
RTD/PT100s B to G are only available if the RTD/PT100 and Ground Fault expansion card is fitted.
7.8.4
Logs menu
The Logs Menu provides information on events, trips and starter performance.
To open the Logs Menu, press the M button, then scroll to Logs and press M again.
Trip log
The Trip Log stores details of the eight most recent trips, including the date and time the trip happened. Trip 1 is the most recent
and trip 8 is the oldest stored trip.
To open the Trip Log:
1. Open the Logs Menu.
2. Scroll to Trip Log and press M.
3. Use the
and
buttons to select a trip to view, and press M to display details.
To close the log and return to the main display, press
repeatedly.
Event log
The Event Log stores time-stamped details of the starter's 99 most recent events (actions, warnings and trips), including the date
and time of the event. Event 1 is the most recent and event 99 is the oldest stored event.
To open the Event Log:
1. Open the Logs Menu.
2. Scroll to Event Log and press M.
and
buttons to select an event to view, and press M to display details.
3. Use the
To close the log and return to the main display, press
60
repeatedly.
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Performance counters
The performance counters store statistics on the starter's operation:

Hours run (lifetime and since counter last reset)

Number of starts (lifetime and since counter last reset)

Motor kWh (lifetime and since counter last reset)

Number of times the thermal model has been reset
The resettable counters (hours run, starts and motor kWh) can only be reset if the Adjustment Lock (Pr 15C) is set to Read & Write.
To view the counters:
1. Open the Programming Menu and select Counters.
and
buttons to scroll through the counters. Press M to view details.
2. Use the
3. To reset a counter, press M then press M to confirm the action.
To return to the previous level, press
NOTE
.
The reset counters function is protected by the access code.
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Quick Start Commissioning
This procedure is written from default parameter settings as the starter would be delivered from the factory.
Always apply control voltage before (or with) mains voltage.
WARNING
8.1
Control wiring
Figure 8-1 Control terminals for basic connection
F1
220-440 VAC +10%
-15%
+10%
110-210 VAC
-15%
CSH
CSL
CSR
CSH-CSR or CSL-CSR
DI1, +24V
DI2, +24V
DI3, +24V
F1
DI1
+24V
DI2
Control supply
Start
Stop
Reset
Fuse (optional)
+24V
DI3
+24V
E
08335.A
DI4
+24V
For keypad control, the soft starter requires:

control supply connections (terminals CSH, CSL, CSR depending on the control voltage)

programmable input A (DI4, +24V) must be closed or Pr 3A Input A Function must be changed from Emergency Stop
8.2
Setup procedure
Table 8-1 Basic setup procedure
Action
Before power-up
Power up the starter
Program parameters
62
Detail
Ensure:

The starter is not receiving a start signal

The motor is connected to the starter

The motor connection is correct

The correct supply voltage is available
Ensure:

The Ready LED activates
The Quick Setup Menu makes it easy to configure the Digistart IS for common applications. The
Digistart IS selects the parameters relevant to the application and suggests a typical setting,
and you can adjust each parameter to suit your exact requirements.
The following applications are available through the Quick Setup Menu:

Pump (centrifugal, submersible)

Fan (damped, undamped)

Compressor (screw, reciprocating)

Conveyor

Crusher (rotary, jaw)
For more information on the Quick Setup Menu, see Quick setup details on page 38.
For applications not covered by the Quick Setup Menu, the following parameters should be set
to suit the requirements of the application:

1A Motor Full Load Current

2A Start Mode

2B Current Limit

2D Start Ramp Time

2I Stop Time

2H Stop Mode (if required)
For parameter details, see Parameter descriptions on page 44.
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9.
Diagnostics
The Digistart IS soft starter is not user serviceable. The unit should only be serviced by authorised service personnel.
Unauthorised tampering with the unit will void the product warranty.
NOTE
9.1
Protection responses
When a protection condition is detected, the Digistart IS will write this to the event log and may also trip or issue a warning. The soft
starter's response to some protections may depend on the Protection Action settings (parameter group 16).
If the Digistart IS trips you will need to reset the soft starter before restarting. If the Digistart IS has issued a warning, the soft starter
will reset itself once the cause of the warning has been resolved.
Some protections cause a fatal trip. This response is pre-defined and cannot be overridden. These protection mechanisms are
designed to protect the soft starter, or can be caused by a fault within the soft starter.
9.2
Trip messages
This table lists soft starter's protection mechanisms and the probable cause of the trip. Some of these can be adjusted using
parameter group 4 Protection Settings and parameter group 16 Protection Action, other settings are built-in system protections and
cannot be set or adjusted.
Table 9-1 Trip messages
Display
Analog Input Trip
Battery/Clock
Current Imbalance
Excess Start Time
FLC Too High
Frequency
Ground Fault
Digistart IS User Guide
Issue Number: 2
Possible cause/Suggested solution
This fault only occurs if the Input/Output expansion card is fitted. Identify and resolve the condition which
caused Analog Input A to activate.
Related Pr: 8A, 8B, 8C
A verification error has occurred on the real time clock, or the backup battery voltage is low. If the battery
is low and the power is off, date/time settings will be lost. Reprogram the date and time.
Related Pr: 16O
Current imbalance can be caused by problems with the motor, the environment or the installation, such
as:

An imbalance in the incoming mains voltage

A problem with the motor windings

A light load on the motor
Current imbalance can also be caused by incorrect cabling between the external bypass contactor and
the soft starter or an internal problem with the soft starter, particularly an SCR that has failed open circuit.
A failed SCR can only be definitely diagnosed by replacing the SCR and checking the starter's
performance.
Related Pr: 5C, 6A, 16C
Please contact Control Techniques or your local distributor.
Excess start time trip can occur in the following conditions:

Pr 1A Motor Full Load Current is not appropriate for the motor

Pr 2B Current Limit has been set too low

Pr 2D Start Ramp Time has been set greater than the setting for 5A Excess Start Time setting

Pr 2D Start Ramp Time is set too short for a high inertia load when using Adaptive Acceleration
Control
Related Pr: 1A, 2B, 2D, 5A, 5B, 11A, 12D, 12B, 16B
The Digistart IS can support higher motor full load current values when connected to the motor using
inside delta configuration rather than in-line connection. If the soft starter is connected in-line but the
programmed setting for Pr 1A Motor Full Load Current is above the in-line maximum, the soft starter will
trip at start.
Related Pr: 1A, 11A
The mains frequency has gone beyond the specified range.
Check for other equipment in the area that could be affecting the mains supply (particularly variable
speed drives).
If the Digistart IS is connected to a generator set supply, the generator may be too small or could have a
speed regulation problem.
Related Pr: 5I, 5J, 6F, 16H
This fault only occurs if the RTD/PT100 and Ground Fault card is fitted. Test the insulation of the output
cables and the motor. Identify and resolve the cause of any ground fault.
Related Pr: 5K, 6H, 16P
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Display
Heatsink Overtemp
Input A Trip
Input B Trip
Internal Fault X
L1 Phase Loss
L2 Phase Loss
L3 Phase Loss
L1-T1 Shorted
L2-T2 Shorted
L3-T3 Shorted
Motor Overload
Motor 2 Overload
Motor Connection
Motor Thermistor
Possible cause/Suggested solution
Check if cooling fans are operating. If mounted in an enclosure check if ventilation is adequate.
On models with internal bypass, the cooling fans will operate:

During the Start sequence and for 10 minutes after transition to Run.

For 10 minutes after Stop.
Models without internal bypass will operate the cooling fans from a Start until 10 minutes after a Stop.
Related Pr: 16N
Identify and resolve the condition which caused Input A to activate.
Related Pr: 3A, 3B, 3C, 3D, 3E, 16I
Identify and resolve the condition which caused Input B to activate.
Related Pr: 3F, 3G, 3H, 3I, 3J, 16J
The Digistart IS has tripped on an internal fault. Contact your local supplier with the fault code (X).
Related Pr: None
During pre-start checks the starter has detected a phase loss as indicated.
In run state, the starter has detected that the current on the affected phase has dropped below 3.3% of
the programmed motor FLC for more than 1 second, indicating that either the incoming phase or
connection to the motor has been lost.
Check the supply and the input and output connections at the starter and at the motor end.
Phase loss can also be caused by a failed SCR, particularly an SCR that has failed open circuit. A failed
SCR can only be definitely diagnosed by replacing the SCR and checking the starter's performance.
Related Pr: None
Please contact Control Techniques or your local distributor.
During pre-start checks the starter has detected a shorted SCR or a short within the bypass contactor as
indicated. If the starter is connected in-line with the motor, consider using PowerThrough to allow
operation until the starter can be repaired.
Related Pr: 15D
The motor has reached its maximum thermal capacity. Overload can be caused by:

The soft starter protection settings not matching the motor thermal capacity

Excessive starts per hour

Excessive throughput

Damage to the motor windings
Resolve the cause of the overload and allow the motor to cool.
Related Pr: 1A, 1B, 1C, 1D, 16A
See 'Motor Overload' above
Note: Applicable only if the second motor set has been programmed.
Related Pr: 11A, 11B, 11C, 11D, 11E, 16A
The motor is not connected correctly to the soft starter for in-line or inside delta use.

Check individual motor connections to the soft starter for power circuit continuity.

Check connections at the motor terminal box.
The motor thermistor input has been enabled and:
The resistance at the thermistor input has exceeded 3.6 kΩ for more than one second.
The motor winding has overheated. Identify the cause of the overheating and allow the motor to
cool before restarting.

The motor thermistor input has been opened.
Note: If a valid motor thermistor is no longer used, a 1.2 kΩ resistor must be fitted across terminals TH1,
TH2.
Related Pr: 16K
The network master has sent a trip command to the starter, or there may be a network communication
problem.
Check the network for causes of communication inactivity.
Related Pr: 16M
The motor has experienced a sharp rise in power, probably caused by a locked rotor condition while
running. This may indicate a jammed load.
Related Pr: 5F, 6C, 16E
There has been a voltage surge on the mains. Causes can include problems with a transformer tap
regulator or off-loading of a large transformer load.

Check that the starter is configured appropriately for local conditions.

Monitor the mains voltage to determine the cause of the voltage fluctuation, and resolve the cause.
Related Pr: 5H, 6E, 16P
Voltage data is only available from the Digistart IS if the voltage measuring card is installed.


Network Comms
Overpower
Overvoltage
64
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Data
Display
Par xx Out of Range
Phase Sequence
Power Loss
RTD/PT100 A
RTD/PT100 B to G
RTD/PT100 X Circuit
Starter/Comms
Thermistor Cct
Time - Overcurrent
Underpower
Undervoltage
Unsupported Option
9.3
Possible cause/Suggested solution

A parameter value is outside the valid range.
The keypad will indicate the first invalid parameter. This can occur if:

An error occurred loading data from the EEPROM to RAM when the keypad powered up.

The parameter set or values in the keypad do not match the parameters in the starter.

"Load User Set" has been selected but no saved file is available.
Reset the fault then reload the default settings. If the problem persists, contact your local distributor.
Related Pr: None
The phase sequence on the soft starter's input terminals (L1, L2, L3) is not valid.
Check the phase sequence on L1, L2, L3 and ensure the setting in Pr 5D is suitable for the installation.
Related Pr: 5D
The starter is not receiving mains supply on one or more phases when a Start Command is given.
Check that the main contactor closes when a start command is given, and remains closed until the end
of a soft stop.
Related Pr: 20B
The RTD/PT100 set temperature has been exceeded and tripped the soft starter. Identify and resolve the
condition which caused the appropriate input to activate.
: PT100 B to PT100 G are applicable only if a RTD/PT100 and Ground Fault card is fitted.
Related Pr: 14A, 14B, 14C, 14D, 14E, 14F, 14G, 16Q to 16W
Indicates that the indicated RTD/PT100 has short circuited. Check and resolve this condition.
Related Pr: None.

There is a problem with the connection between the soft starter and the optional communications
module. Remove and reinstall the module. If the problem persists, contact your local distributor.

There is an internal communications error within the soft starter. Contact your local distributor.
Related Pr: 16L
The thermistor input has been enabled and:

The resistance at the input has fallen below 20 Ω (the cold resistance of most thermistors will be
over this value) or

A short circuit has occurred. Check and resolve this condition.
Related Pr: None
The Digistart IS is internally bypassed and has drawn high current during running. (The 10A protection
curve trip has been reached or the motor current has risen to 600% of the motor FLC setting.)
Related Pr: None
The motor has experienced a sharp drop in power, caused by loss of load. Causes can include broken
components (shafts, belts or couplings), or a pump running dry.
Related Pr: 5E, 6B, 16D
Mains voltage has fallen below the level selected in Pr 5G. Causes can include an undersized supply or
adding a large non-linear load to the system.

Check that the starter is configured appropriately for local conditions.

Monitor the mains voltage to determine the cause of voltage fluctuation.
Related Pr: 5G, 6D, 16H
Voltage data is only available from the Digistart IS if the voltage measuring card is installed.
The selected function is not available (e.g. jog is not supported in inside delta configuration).
Related Pr: None
General faults
This table describes situations where the soft starter does not operate as expected but does not trip or give a warning.
Table 9-2 General faults
Symptom
Soft starter does not respond to
commands.
Probable Cause


-
Digistart IS User Guide
Issue Number: 2
If the soft starter does not respond to the START or RESET button on the keypad:
The soft starter may be in Remote control mode. When the soft starter is in Remote
control mode, the Remote LED on the keypad is active. Press the LCL/RMT button
once to change to Local control (see Pr 3M Local/Remote for details).
If the soft starter does not respond to commands from the control inputs:
The soft starter may be in Local control mode. When the soft starter is in Local
control mode, the Remote LED on the keypad is not active. Press the LCL/RMT
button once to change to Remote control (see Pr 3M Local/Remote for details).
The control wiring may be incorrect. Check that the remote start, stop and reset
inputs are configured correctly (see Control Wiring on page 15 for details).
The signals to the remote inputs may be incorrect. Test the signalling by activating
each input signal in turn. The appropriate remote control input LED should activate
on the keypad.
The soft starter will only execute a start command from the remote inputs if the
remote reset input is activated. Check that the remote reset input is also active (the
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Symptom

-
-
The soft starter does not control the
motor correctly during starting.


Motor does not reach full speed.
NOTE
Erratic motor operation.
Soft stop ends too quickly.
Corrupted text shown on keypad
display.
Adaptive Control, brake, jog and
PowerThrough functions not working
A reset does not occur after an
Auto-Reset, when using a remote
two-wire control.
Remote start/stop command is
overriding Auto Start/Stop settings when
using remote two-wire control.
After selecting Adaptive Control the
motor used an ordinary start and/or the
second start was different to the first.
Non-resettable THERMISTOR FAIL trip,
when there is a link between the
thermistor input TH1, TH2 or when the
motor thermistor connected between
TH1, TH2 is permanently removed.

Make sure the motor starting parameters are appropriate for the application and that you
are using the intended motor starting profile. If Pr 3A or 3F is set to Motor Set Select,
check that the corresponding input is in the expected state.

The load may be jammed. Check the load for severe overloading or a locked rotor
situation.

The SCRs in the Digistart IS require at least 5 A of current to latch. If you are
testing the soft starter on a motor with full load current less than 5 A, the SCRs may
not latch correctly.

The soft stop settings may not be appropriate for the motor and load. Review the
settings of Pr 2H, 2I, 12H and 12I.

If the motor is very lightly loaded, soft stop will have limited effect.

The keypad may not be screwed down, resulting in an intermittent connection.
Screw down the keypad or hold squarely in place.

These features are only available with in-line installation. If the Digistart IS is
installed inside delta, these features will not operate.

The remote 2-wire start signal must be removed and reapplied for a re-start.

Auto Start/Stop function should only be used in Remote mode, 3 and 4-wire control.

The first Adaptive Acceleration Control start is current limit so that the starter can
learn from the motor characteristics. Subsequent starts use Adaptive Acceleration
Control.
The thermistor input is enabled once a link is fitted and short circuit protection has
activated.
Remove the link then load the default parameter set. This will disable the thermistor
input and clear the trip.
Place a 1k2  resistor across the thermistor input.
Turn thermistor protection to 'Log only' (Pr 16K).
Check that the keypad has not been screwed down too tightly. Loosen screws
slightly.
Make sure you are saving the new value by pressing the M button after adjusting a
parameter setting. If you press
, the change will not be saved.
Check that the adjustment lock (Pr 15C) is turned off. If the adjustment lock is on,
settings can be viewed but not changed. You need to know the security access
code to change the adjustment lock setting.
The EEPROM may be faulty on the keypad. A faulty EEPROM will also trip the soft
starter, and the keypad will display the message Parameter Out Of Range. Contact
your local supplier for advice.

-
Display is distorted

Parameter settings cannot be stored.



66
Probable Cause
Reset LED on the starter will be on).
If the soft starter does not respond to a start command from either the local or
remote controls:
The soft starter may be waiting for the restart delay to elapse. The length of the
restart delay is controlled by Pr 6G Restart Delay.
The motor may be too hot to permit a start. If Pr 5L Motor Temperature Check is set
to Check, the soft starter will only permit a start when it calculates that the motor has
sufficient thermal capacity to complete the start successfully. Wait for the motor to
cool before attempting another start.
The emergency stop function may be active. If Pr 3A or 3F is set to Emergency Stop
and there is an open circuit on the corresponding input, the Digistart IS will not start.
If the emergency stop situation has been resolved, close the circuit on the input.
Start performance may be unstable when using a low Motor Full Load Current
setting (Pr 1A). This can affect use on a small test motor with full load current
between 5 A and 50 A.
Power factor correction (PFC) capacitors must be installed on the supply side of the
soft starter. To control a dedicated PFC capacitor contactor, connect the contactor
to run relay terminals.
If the start current is too low, the motor will not produce enough torque to
accelerate to full speed. The soft starter may trip on excess start time.
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10. Application Examples
A selection of Application Notes are available describing advanced installation or configuration of the Digistart IS for situations with
specific performance requirements. Application notes are available for situations including brake and jog operation, pumping and
advanced protection options.
10.1
Installation with main contactor
The Digistart IS is installed with a main contactor (AC3 rated). Control voltage must be supplied from the input side of the contactor.
The main contactor is controlled by the Digistart IS Main Contactor output, which by default is assigned to Output Relay A (terminals
COM1, RLO1).
Figure 10-1 Installation with main contactor
1/L1
2/T1
3/L2
4/T2
5/L3
6/T3
E
220-440 VAC +10%
-15%
110-210 VAC
CSH
+24V
CSL
0V
+10%
-15% CSR
DI1
COM1
+24V
RLO1
DI2
COM2
+24V
RLO2
DI3
COM3
+24V
RLC3
DI4
RLO3
+24V
COM4
DI5
RLC4
+24V
RLO4
1
2
3
4
5
6
7
8
9
KM1
F1
S1
S2
COM1,
RLO1
COM2,
RLO2
COM3,
RLC3, RLO3
COM4,
RLC4, RLO4
Control voltage
Remote control inputs
Motor thermistor input
RTD/PT100 input
24 Vdc output
Relay outputs
Analog output
Three-phase supply
Motor terminals
Main contactor
Semiconductor fuses (optional)
Start/stop contact
Reset contact
Relay output A
Run relay output
Relay output B
Relay output C
TH1
TH2
PT3
PT4
AO1
PT5
0V
E
Parameter settings:


Pr 4A Relay A Action
Select 'Main Contactor' - assigns the Main Contactor function to Relay Output A (default setting)
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Installation with bypass contactor
The Digistart IS is installed with a bypass contactor (AC1 rated). The bypass contactor is controlled by the Digistart IS Run Output
(terminals COM2, RLO2).
Figure 10-2 Installation with bypass contactor
KM1
F1
8
1/L1
2/T1
3/L2
4/T2
5/L3
6/T3
9
E
+24V
CSH
220-440 VAC +10%
-15%
110-210 VAC +10%
-15%
CSL
5
1
0V
CSR
DI1
COM1
+24V
RLO1
DI2
COM2
+24V
RLO2
+24V
2
6
Control voltage
Remote control inputs
Motor thermistor input
RTD/PT100 input
24 Vdc output
Relay outputs
Analog output
Three-phase supply
Motor terminals
Bypass contactor
Semiconductor fuses (optional)
Start contact
Stop contact
Reset contact
Relay output A
Run relay output
Relay output B
Relay output C
1
COM3
DI3
1
2
3
4
5
6
7
8
9
KM1
F1
S1
S2
S3
COM1,
RLO1
COM2,
RLO2
COM3,
RLC3, RLO3
COM4,
RLC4, RLO4
KM1
RLC3
DI4
RLO3
+24V
COM4
DI5
RLC4
+24V
RLO4
TH1
TH2
3
PT3
4
PT5
E
AO1
7
0V
08534.A
PT4
Parameter settings:

68
No special settings required.
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Emergency run operation
In normal operation the Digistart IS is controlled via a remote two wire signal (terminals DI2, +24V).
Emergency Run is controlled by a two wire circuit connected to Input A (terminals DI4, +24V). Closing Input A causes the Digistart
IS to run the motor and ignore certain trip conditions.
Figure 10-3 Emergency run operation
8
1/L1
2/T1
3/L2
4/T2
5/L3
6/T3
9
E
+24V
CSH
+10%
220-440 VAC -15%
CSL
+10%
110-210 VAC -15%
CSR
5
1
0V
DI1
COM1
+24V
RLO1
DI2
COM2
+24V
RLO2
Control voltage
Remote control inputs
Motor thermistor input
RTD/PT100 input
24 Vdc output
Relay outputs
Analog output
Three-phase supply
Motor terminals
Start/stop contact
Reset contact
Emergency Run Contact
Semiconductor fuses (optional)
Relay output A
Run relay output
Relay output B
Relay output C
COM3
DI3
+24V
1
2
3
4
5
6
7
8
9
S1
S2
S3
F1
COM1,
RLO1
COM2,
RLO2
COM3,
RLC3,
RLO3
COM4,
RLC4,
RLO4
2
6
RLC3
DI4
RLO3
+24V
COM4
DI5
RLC4
+24V
RLO4
TH1
TH2
3
PT3
PT5
E
4
AO1
7
0V
08535.A
PT4
Parameter settings:

Pr 3A Input A Function
Select 'Emergency Run' - assigns Input A for Emergency Run function.

Pr 15B Emergency Run

Select 'Enable' - Enables Emergency Run mode

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Auxiliary trip circuit
In normal operation the Digistart IS is controlled via a remote two wire signal (terminals DI2, +24V).
Input A (terminals DI4, +24V) is connected to an external trip circuit (such as a low pressure alarm switch for a pumping system).
When the external circuit activates, the soft starter trips, which stops motor.
Figure 10-4 Auxiliary trip circuit
8
1/L1
2/T1
3/L2
4/T2
5/L3
6/T3
9
E
+24V
CSH
+10%
220-440 VAC -15%
CSL
+10%
110-210 VAC -15%
CSR
5
1
0V
DI1
COM1
+24V
RLO1
DI2
COM2
+24V
RLO2
Control voltage
Remote control inputs
Motor thermistor input
RTD/PT100 input
24 Vdc output
Relay outputs
Analog output
Three-phase supply
Motor terminals
Start/stop contact
Reset contact
Auxiliary trip contact
Semiconductor fuses (optional)
Relay output A
Run relay output
Relay output B
Relay output C
COM3
DI3
+24V
1
2
3
4
5
6
7
8
9
S1
S2
S3
F1
COM1,
RLO1
COM2,
RLO2
COM3,
RLC3, RLO3
COM4,
RLC4, RLO4
2
6
RLC3
DI4
RLO3
+24V
COM4
DI5
RLC4
+24V
RLO4
TH1
TH2
3
PT3
PT5
E
4
AO1
7
0V
08536.A
PT4
Parameter settings:










70
Pr 3A Input A Function
Select 'Input Trip (N/O)'. Assigns the Input A to Auxiliary Trip (N/O) function)
Pr 3B Input A Name
Select a name e.g. Low Pressure. Assigns a name to Input A.
Pr 3C Input A Trip
Set as required. For example, Run Only limits the input trip to when the soft starter is running only.
Pr 3E Input A Trip Delay
Set as required. Sets a delay between the input activating and the soft starter tripping.
Pr 3D Input A Initial Delay
Set at around 120 seconds. Limits operation of the input trip to 120 seconds after the start signal. This allows time for
pressure to build up in the piping before the low pressure input becomes active.
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Soft braking
For applications with a variable load, the Digistart IS can be configured for soft braking.
In this application the Digistart IS is employed with forward run and braking contactors. When the Digistart IS receives a start signal
(pushbutton S1), it closes the forward run contactor (KM1) and controls the motor according to the programmed primary motor
settings.
When the Digistart IS receives a stop signal (pushbutton S2), it opens the forward run contactor (KM1) and closes the braking
contactor (KM2) after a delay of approximately 2-3 seconds (KT1). KA3 is also closed to activate the secondary motor settings,
which should be user programmed for the desired stopping performance characteristics.
When motor speed approaches zero, the shaft rotation sensor (A2) stops the soft starter and opens the braking contactor (KM2).
Figure 10-5 Soft braking
8
1
9
3
2
4
6
1
1
2
3
4
6
8
9
A2
F2
Control voltage
Remote control inputs
Motor thermistor input
RTD/PT100 input
Relay outputs
Three-phase supply
Motor terminals
Shaft rotation sensor
Semiconductor fuses (optional)
KA1
KA2
KA3
KA4
KM1
KM2
KT1
KT2
S1
S2
S3
Run relay
Start relay
Brake relay
Rotation sensing relay
Line contactor (Run)
Line contactor (Brake)
Run delay timer
Brake delay timer
Start contact
Stop contact
Reset contact
Parameter settings:

Pr 3A Input A Function
Select 'Motor Set Select' - assigns Input A for Motor set selection.
Set starting performance characteristics using the primary motor set.
Set braking performance characteristics using the secondary motor settings.

Pr 4G Relay C Function

Select 'Trip' - assigns Trip function to Relay Output C.



NOTE
If the Digistart IS trips on supply frequency (Pr 16H Frequency) when the braking contactor KM2 opens, modify the
frequency protection settings.
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Two-speed motor
The Digistart IS can be configured for control of dual speed Dahlander type motors, using a high speed contactor (KM1), low speed
contactor (KM2) and a star contactor (KM3).
NOTE
Pole Amplitude Modulated (PAM) motors alter the speed by effectively changing the stator frequency using external
winding configuration. Soft starters are not suitable for use with this type of two-speed motor.
When the soft starter receives a high speed start signal, it closes the high speed contactor (KM1) and star contactor (KM3), then
controls the motor according to the primary motor settings.
When the soft starter receives a low speed start signal, it closes the low speed contactor (KM2). This closes Input A and the
Digistart IS controls the motor according to the secondary motor settings.
Figure 10-6 Two-speed motor
1
2
3
4
6
8
9
10
11
F2
KA1
KA2
KM1
KM2
KM3
S1
COM4,
RLC4, RLO4
NOTE
Control voltage
Remote control inputs
Motor thermistor input
RTD/PT100 input
Relay outputs
Three-phase supply
Motor terminals
Remote low speed start input
Remote high speed start input
Semiconductor fuses (optional)
Remote start relay (low speed)
Remote start relay (high speed)
Line contactor (high speed)
Line contactor (low speed)
Star contactor (high speed)
Reset contact
Relay output C
Contactors KM2 and KM3 must be mechanically interlocked.
Parameter settings:

Pr 3A Input A Function
Select 'Motor Set Select' - assigns Input A for Motor set selection.
Set high speed performance characteristics using the primary motor settings.
Set low speed performance characteristics using the secondary motor settings.

Pr 3K Input C Function

Select 'Trip' - assigns Trip function to Relay Output C



NOTE
72
If the Digistart IS trips on supply frequency (Pr 16H Frequency) when the high-speed start signal (11) is removed,
modify the frequency protection settings.
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Slip-ring motor
The Digistart IS can be used to control a slip-ring motor, using rotor resistance.
Figure 10-7 Slip-ring motor
8
1/L1
2/T1
3/L2
4/T2
5/L3
6/T3
9
E
+10%
220-440 VAC -15%
5
1
+10%
110-210 VAC -15%
2
1
2
3
4
5
6
7
8
9
KM1
F1
S1
S2
R1
Control voltage
Remote control inputs
Motor thermistor input
RTD/PT100 input
24 Vdc output
Relay outputs
Analog output
Three-phase supply
Slip-ring induction motor
Changeover contactor
Semiconductor fuses (optional)
Start/stop contact
Reset contact
Rotor resistance (external)
6
3
E
7
08539.A
4
Parameter settings:










Pr 4D Relay B Action
Select 'Changeover Contactor'
Pr 4E Relay B On Delay
Set this to the maximum time (5m:00s).
Pr 13A Motor Data-1 Ramp
Select 'Dual Ramp' (for slip-ring induction motor control)
Pr 13D Changeover Time
Default setting is 150 milliseconds. Set this to a value just greater than the changeover contactor (KM1) pole closing time.
Pr 13C Slip Ring Retard
Default setting is 50%. Set this parameter to a value which is high enough to cause the motor to instantly accelerate once
the rotor resistance (R1) has been bridged out and low enough to avoid a motor current pulse.
NOTE
For this installation to function correctly, only use the primary motor settings. Only use the constant current start method
(Pr 2A Start Mode).
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11. Technical Data
Supply
Mains voltage (L1, L2, L3)
ISx4xxxx ........................................................................................................................................... 200 Vac to 440 Vac (± 10%)
ISx6xxxx .................................................................................... 380 Vac to 600 Vac (± 10%) (in-line or inside delta connection)
ISx6xxxx .................................................................................. 380 Vac to 690 Vac (± 10%) (grounded star supply system only)
Control voltage (CSH, CSL, CSR) .................................................................... 110 to 210 Vac or 220 to 440 Vac (+ 10% / -15%), 1 A
Recommended fuse ............................................................................ 1 A continuous (30 A max, 10 A typical half cycle inrush)
Mains frequency ............................................................................................................................................................ 45 Hz to 66 Hz
Rated insulation voltage to ground ........................................................................................................................................... 600 Vac
Rated impulse withstand voltage .................................................................................................................................................... 4 kV
Form designation ................................................................................... Bypassed or continuous, semiconductor motor starter form 1
Short circuit capability
Coordination with semiconductor fuses ....................................................................................................................................... Type 2
Coordination with HRC fuses ....................................................................................................................................................... Type 1
IS1x0023B to IS1x0105B ..................................................................................................................... prospective current 10 kA
IS2x0145B to IS2x0220B ..................................................................................................................... prospective current 18 kA
IS3x0255N to IS4x0930N ..................................................................................................................... prospective current 85 kA
IS561200N to IS561600N .................................................................................................................. prospective current 100 kA
Electromagnetic capability (compliant with EU Directive 89/336/EEC)
EMC Emissions.................................................................................................................................................. IEC 60947-4-2 Class B
EMC Immunity ................................................................................................................................................................. IEC 60947-4-2
Inputs
Input rating ................................................................................................................................................ Active 24 Vdc, 8 mA approx
Start (DI1, +24V) ............................................................................................................................................................ Normally open
Stop (DI2, +24V) .......................................................................................................................................................... Normally closed
Reset (DI3, +24V) ........................................................................................................................................................ Normally closed
Programmable inputs
Input A (DI4, +24V) ................................................................................................................................................ Normally open
Input B (DI5, +24V) ................................................................................................................................................ Normally open
Motor thermistor (TH1, TH2) ....................................................................................................................... Trip >3.6 k, reset <1.6k
PT100 RTD (PT3, PT4, PT5) ......................................... Accuracy 0 to 100 °C  0.5 °C, 100 °C to 150 °C 2°C, -20 to 0 °C  2°C
Outputs
Relay outputs ................................................................................................... 10A @ 250 Vac resistive, 5A @ 250 Vac AC15 pf 0.3
Run relay (COM2, RLO2) ............................................................................................................................................... Normally open
Programmable outputs
Relay A (COM1, RLO1) ......................................................................................................................................... Normally open
Relay B (COM3, RLC3, RLO3) .................................................................................................................................. Changeover
Relay C (COM4, RLC4, RLO4) .................................................................................................................................. Changeover
Analog output (AO1, 0V) ................................................................................................................... 0-20 mA or 4-20 mA (selectable)
Maximum load ....................................................................................................................................... 600  (12 Vdc @ 20 mA)
Accuracy ................................................................................................................................................................................ ± 5%
24 Vdc output (+24V, 0V) Maximum load ................................................................................................................................... 200 mA
Accuracy .............................................................................................................................................................................. ± 10%
Environmental
Protection
IS1x0023B to IS1x0105B ....................................................................................................................................................... IP20
IS2x0145B to IS561600N ....................................................................................................................................................... IP00
Keypad (when installed with remote mounting kit) .............................................................................................. IP65 & NEMA12
Operating temperature ....................................................................................................... -10 ˚C to 60 ˚C, above 40 ˚C with derating
Storage temperature ................................................................................................................................................. - 25 ˚C to + 60 ˚C
Operating altitude..................................................................................................................... 0 - 1000 m, above 1000 m with derating
Humidity .................................................................................................................................................. 5% to 95% Relative Humidity
Pollution degree ....................................................................................................................................................... Pollution Degree 3
Vibration ......................................................................................................................................................................... IEC 60068-2-6
74
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Heat dissipation
During start .......................................................................................................................................................... 4.5 watts per ampere
During run
IS1x0023B to IS1x0053B .................................................................................................................................. ≤ 39 watts approx
IS1x0076B to IS1x0105B .................................................................................................................................. ≤ 51 watts approx
IS2x0145B to IS2x0220B ................................................................................................................................ ≤ 120 watts approx
During run
IS3x0255N to IS4x0930N ................................................................................................................ 4.5 watts per ampere approx
IS561200N to IS561600N ............................................................................................................... 4.5 watts per ampere approx
Certification
UL/ C-UL .................................................................................................................................................................................... UL 508
IS1x0023B to IS1x0105B .......................................................................................................... IP20 & NEMA1, UL Indoor Type 1
IS2x0145B to IS561600N .................................................................................................................... IP00, UL Indoor Open Type
CE
............................................................................................................................................................................... IEC 60947-4-2
C .............................................................................................................................................................................. IEC 60947-4-2
RoHS ..................................................................................................................................... Compliant with EU Directive 2002/95/EC
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12. Maintenance
NOTE

The Digistart IS soft starter is not user serviceable. The unit should only be serviced by authorised service personnel.
Unauthorised tampering with the unit will void the product warranty.
Before carrying out any work, disconnect and lock the starter's power supply and wait 2 minutes to ensure that the capacitors
have discharged.


When the starter trips, fatal residual voltages may remain at the output terminals and in the starter.
During maintenance operations performed with the starter switched on, the operator must stand on an insulated surface which
is not connected to ground.

During work on a motor or its power supply cables, ensure that the power supply of the corresponding starter is disconnected
and locked.

Protective covers must remain in place during tests.
There are very few maintenance and repair operations for the user to perform on Digistart IS soft starters. Regular servicing
operations and simple methods for checking that the starter is operating correctly are described below.
12.1
Care
Printed circuits and internal components do not normally require any maintenance. Contact your local distributor or the nearest
approved repair company in the event of a problem,
Do not dismantle the printed circuits while the starter is still under warranty. Unauthorised tampering with the unit will
void the product warranty.
CAUTION
Do not touch the integrated circuits or the microprocessor either with your fingers or with materials which are charged or live.
Ground yourself, as well as the workbench or the soldering iron, while performing any work on the circuits.
From time to time, check that the power circuits are correctly tightened.
12.2
Measuring the motor current
The current drawn by the motor and the starter input current can be measured approximately using a conventional moving coil
ammeter.
12.3
Measuring the input and output power
The starter input and output power can be measured using an electrodynamic instrument.
12.4
Spare parts list
Please consult Control Techniques.
12.5
Exchanging products
Products must be returned in their original packaging or, if this is not possible, in similar packaging, to prevent their
being damaged. Otherwise, replacement under warranty could be refused.
CAUTION
76
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13. Options
Table 13-1 Digistart IS options
Option name
Function
Picture
Digistart - DeviceNet
Interface
Digistart - Modbus
Interface
Fieldbus communications modules
Digistart - Profibus
Interface
DSSoft
DSSoft can be used with Control Techniques soft starters to
provide the following functionality for networks of up to 99 soft
starters:


08318.A
Digistart IS - Finger Guard
Operational control (Start, Stop, Reset, Quick Stop)
Starter status monitoring (Ready, Starting, Running,
Stopping, Tripped)

Performance monitoring (motor current, motor temperature)
To use DSSoft with the Digistart IS, the soft starter must be fitted
with a Modbus Module.
Finger guards may be specified for personnel safety and can be
used on Digistart IS soft starter models 0145B to 0220B. Finger
guards fit over the soft starter terminals to prevent accidental
contact with live terminals. Finger guards provide IP20 protection.
The input/output expansion card provides the following additional
inputs and outputs:




Digistart IS - RTD/PT100
and Ground Fault Card
2 x inputs
3 x output relays
1 x analog input
1 x analog output
The RTD/PT100 and ground fault protection card provides the
following additional inputs:

6 x PT100 RTD inputs

1 x ground fault input
To use ground fault protection a 1000:1, 5 VA current transformer
is also required.
Digistart IS - Volt Measure
Card
Digistart IS - Keypad
Digistart IS - Keypad
Mounting Kit
Digistart IS User Guide
Issue Number: 2
08447.A
Digistart IS - I/O
Expansion
The voltage measurement card provides additional functionality
for voltage monitoring and protection.
Allows remote mounting of the keypad up to 3 m away from the
soft starter.
Packing list: 1 x cable, 1 x gasket, 4 x screw M3, 4 x flat washer
M3, 4 x spring washer M3, 4 x nut M3, 2 x jack screw, 1 x
instructions.
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Digistart IS User Guide
Issue Number: 2
User Guide
Digistart IS
Soft starters for 3 phase
induction motors
7.5 to 800kW (23A to 1600A)
200V, 400V, 575V, 690V
710--00B
Part Number: 0477-0001-02
Issue: 2
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