the Digistart Brochure
Digistart
Soft starters for 3 phase
induction motors
7.5 to 800kW (18 to 1600A)
200V, 400V, 575V, 690V
Digistart
Digistart is Control Techniques’ flexible
soft starter range for motor control and
protection in constant speed applications.
The Digistart range combines advanced
control features with simple installation and
commissioning. Digistart forms an integral
part of our comprehensive product range
which covers all of your motor control needs.
Benefits of using a soft starter
Soft starters are a simple and economic method of
controlling AC motors for fixed speed applications.
Traditional methods of starting motors such as directon-line (DOL) or star-delta result in increased machine
wear through rapid acceleration and very high peak
currents. Soft starters solve this problem through
controlling the acceleration and deceleration phases
of operation.
Digistart IS
Digistart meets your application
requirements
Control Techniques’ Digistart family offers two levels of
functionality to meet all your soft starter requirements.
•Digistart CS
Digistart CS is a compact soft starter for motors up to
110kW (200A). The Digistart CS offers comprehensive
motor protection features and is quickly commissioned
using simple rotary switches.
Digistart CS
2
•Digistart IS
Digistart IS is an intelligent soft starter offering
many advanced features for motors up to 800kW
(1600A). These features include ‘Adaptive control’
which provides an unprecedented level of acceleration
and deceleration control, and an intuitive plain
language display for configuration, monitoring
and diagnostics.
All around the world, just around
the corner
Control Techniques’ Drive and Application Centres in
53 locations in 31 countries offer local technical
sales, service and design expertise. Many also offer a
comprehensive system design, build and commissioning
service. A network of distributors covers a further
35 countries.
Industrial solutions
Digistart can be used in a wide range of industries and
applications including:
•Pumps
•Compressors
•Fans
•Material handling
•Machinery automation
Engineers like to talk to engineers
•Mining and aggregate
Our global network of Drive Centres and highly skilled
Distributors gives us a deep insight into the requirements
of a wide range of motor control applications and
industries. Market research has shown that customers
choose Control Techniques because they have confidence
in our ability to provide solutions where product
performance and quality support are most highly valued.
•Forestry
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E197605
3
Digistart CS
7.5kW to 110kW (18A to 200A)
200V, 400V, 575V
Digistart CS
M
Mains input
Status LEDs
7 x Rotary switches
for easy set up
Motor output
4
2 x Digital inputs
1 x Motor thermistor input
2 x Relay outputs
Compact installation
The Digistart CS is among the most compact constant
current/current ramp soft starters available. The built in
bypass contactor eliminates heat dissipation and energy
losses by bridging out the power devices once the motor is
at full speed. This eradicates the need for external bypass
contactors saving panel space, simplifying installation and
allowing the use of non-ventilated enclosures.
Digistart CS units can be mounted side-by-side and are
DIN rail mountable up to 60A. This is ideal where multiple
soft starters are required such as in motor control centres.
Digistart CS options
Order code
Description
Digistart CS
- Remote
Keypad
IP54 rated, panel mountable keypad and
display for soft starter operation and
monitoring.
Digistart CS
- Pump Apps
Module
Provides 3 digital inputs that can be
configured to detect low pressure,
high pressure and low water levels.
A PT100 input is available for monitoring
pump temperature. If any unwanted
system conditions occur, the soft starter
will trip thus preventing damage.
This option also reduces the need for
other external equipment, simplifying
system design and requirements.
Digistart CS
- Finger
Guard Kit
Finger guards are available to provide
IP20 protection for models CS3x140
to CS3x200.
Ease of use
Digistart CS is a digital soft starter that is configured by
simple rotary switches. Commissioning is easy, allowing
you to get your system up and running quickly.
Cost effective design
In addition to the space saving built-in bypass contactor,
the Digistart CS allows the control voltage to be taken
directly from the mains power. This means there is no
need for an external power supply, thus reducing your
costs and cubicle space.
Motor protection
Digistart CS provides comprehensive motor protection, such
as overload, phase loss, phase sequence, excess start time,
motor thermistor and supply fault. These features eliminate
the need for external motor protection relays or controls.
Digistart CS Remote Keypad
Flexible interfacing
Digistart CS supports network communications using either
PROFIBUS-DP, DeviceNet or Modbus RTU protocols via an
easy-to-install communication interface. Software allows
you to control and monitor your soft starter remotely.
5
Digistart IS
7.5kW to 800kW (23A to 1600A)
200V, 400V, 575V, 690V
Digistart CS
M
Digistart IS
Mains input*
M
5 x Digital inputs
4 x Relay outputs
1 x Motor thermistor input
1 x PT100 RTD input
1 x 24Vdc output
Removeable keypad/display
*Above 160kW (360A),
power inputs and outputs
can be configured for either
top or bottom connection
6
Field-fit option card location
• I/O Expansion card
• PT100 RTD and
Ground fault card
• Volt measurement card
Motor output*
Advanced motor control
Easy configuration and monitoring
Digistart IS provides industry leading motor control,
featuring constant current, current ramp and adaptive
control start methods. Adaptive control is an innovative
control method that not only controls motor current but
also acceleration. It allows the user to select between early,
constant or late acceleration/deceleration depending
upon the application requirements. Adaptive control then
monitors motor performance by analysing each start and
adjusting accordingly to maintain optimum control.
The Digistart IS keypad has a multi-language graphical
display, allowing you to easily set-up and monitor your soft
starter. Start-up wizards guide the user through common
application configurations and reduce commissioning
time. The customisable display also provides real-time
performance monitoring and time stamped event logs
that can be used for maintenance and diagnostics, helping
to improve plant availability.
Parameters are viewed in engineering units, in real-time,
and can be displayed numerically or graphically. The
keypad is IP65 rated and can be either mounted on the
soft starter itself, or remotely, such as on the cabinet door.
Speed
Adaptive control can benefit many applications. A principle
example is pumping where it can be used to eliminate
water hammer by allowing the engineer to select the most
appropriate deceleration profile for the system.
Time
Early acceleration / Late deceleration
Constant acceleration / Constant deceleration
Late acceleration / Early deceleration
Compact and flexible installation
The compact Digistart IS features an internal bypass (on
models up to 110kW [220A]), reducing space and costs
through eliminating the need for external components.
In addition, higher power units from 160kW (360A) allow
the power connections to be configured on the top or
bottom of the unit for both input and output, simplifying
the cabling. Units can be mounted side-by-side to further
reduce cabinet space.
7
Digistart IS
Digistart IS with panel
mountable keypad
Digistart IS
with fieldbus
option fitted
Flexible busbar
arrangement
on units 160kW
(360A) and above
*Standard
configuration
from factory is
bottom input /
bottom output
Digistart IS with
flexible control wiring
(top, bottom
and side entry)
*
Easy to use
pluggable
terminals
8
Digistart IS
control wiring
strain relief
Fire mode
Other advanced features
Digistart IS has an in-built fire mode. This is used in HVAC
applications to help protect building occupants in the case
of fire by pressurising escape routes to maintain a smoke
free environment. Activation of this feature disables the
soft starter protection ensuring it continues to run for as
long as possible.
•Forward/reverse jog for low speed manual
machine positioning
Powerthrough operation
Digistart IS options
Digistart IS’s powerthrough operation ensures the soft
starter will continue to operate using 2 phases if one of the
power devices is damaged. This allows you to keep your
plant running whilst a long term fix is found.
•DC braking to electrically brake high inertia machines
•Profibus, DeviceNet and Modbus RTU communications
•Expandable I/O
Order code
Description
Digistart
IS - Keypad
mount kit
This allows the keypad to be remote
mounted up to 3m from the soft starter.
When panel mounted the keypad is
IP65 rated.
Increased output
The Digistart IS allows the motor to be connected either
in-line (three wire) or using an inside delta configuration
(six wire). Inside delta configuration increases the power
of the soft starter, meaning a smaller unit can be used.
This is a compact, cost efficient solution when replacing
star/delta starters where existing wiring can be used.
In-line connection
Digistart
IS
M
Digistart
IS - I/O
Expansion
Provides additional 2 x digital inputs,
3 x relay outputs, 1 x analog input and
1 x analog output.
Digistart IS
- RTD & GND
Fault Card
The RTD (resistive temperature device)
and GND (ground fault protection) card
provides additional 6 x PT100 RTD inputs
and 1 x ground fault input.
Digistart IS - Allows real-time monitoring of mains
Volt Measure voltage, eliminating the need for
Card
external devices. The volt measure card
also enables under voltage and
over voltage protection.
Inside delta connection*
Digistart
IS
Digistart IS
Finger guards are available to provide
- Fingerguard IP20 protection for models IS2x0145B to
IS2x0220B.
M
*The inside delta ratings are stated in the User Guide.
9
Supporting software tools and fieldbus options
DSSoft
Fieldbus options
Order code
Description
Digistart Modbus Interface
Modbus RTU Interface for
Digistart IS and Digistart CS
Digistart PROFIBUS Interface
PROFIBUS Interface for
Digistart IS and Digistart CS
Digistart DeviceNet Interface
DeviceNet Interface for
Digistart IS and Digistart CS
Digistart USB Interface
USB Interface for
Digistart IS and Digistart CS
Digistart IS can be configured using the DSSoft
commissioning software. It allows you to read, save
and load soft starter configuration settings.
(A Modbus or USB interface is required.)
The software is supplied free of charge.
Download the full version from
www.controltechniques.com.
10
Digistart IS
Digistart CS model numbers and ratings
CS
1
4
018
CS - Compact Soft Starter
Current step
1-3 - F rame size
4-2
00-440Vac
5-2
00-575Vac
Ratings are given at 40°C at <1000m
Size
1
Model
Nominal
Heavy
AC53b 4-6:354
AC53b 4-20:340
kW @ 400V
A
A
CS1x018
7.5
18
17
CS1x042
18.5
42
36
CS1x060
30
60
49
Nominal
Size
2
3
Model
Heavy
AC53b 4-6:594
AC53b 4-20:580
kW @ 400V
A
A
CS2x085
45
85
73
CS3x140
75
140
120
CS3x170
90
170
142
CS3x200
110
200
165
Ratings are detailed using the AC53b utilisation code specified by IEC60947-4-2
18 A: AC-53b 4 -6 :354
Start current rating (A)
Off time (s)
Start current (multiple of FLC)
Start time (s)
11
Digistart IS model numbers and ratings
IS
1
4
0023
B
IS - Intelligent Soft Starter
B - Bypass
N - Non Bypass
1-5 - F rame size
Current Step
4 - 200-440Vac
6 - 380-690Vac
Ratings are given at 40°C at <1000m
Model
Medium
kW @ 400V
AC53b 3.5-15:345
IS1x0023B
IS1x0043B
Nominal
Medium
Heavy
Severe
AC53b 3.0-10:350
AC53b 3.5-15:345
AC53b 4.0-20:340
AC53b 4.5-30:330
7.5
23A
20A
17A
15A
15
43A
37A
31A
26A
IS1x0053B
22
53A
53A
46A
37A
Model
kW @ 400V
AC53b 3.5-15:585
AC53b 3.0-10:590
AC53b 3.5-15:585
AC53b 4.0-20:580
AC53b 4.5-30:570
A
A
A
A
IS1x0076B
30
76A
64A
55A
47A
IS1x0097B
37
97A
82A
69A
58A
IS1x0105B
55
105A
105A
95A
78A
IS2x0145B
60
145A
123A
106A
90A
IS2x0170B
75
170A
145A
121A
97A
IS2x0200B
90
200A
189A
160A
134A
IS2x0220B
110
220A
209A
177A
147A
Size
Model
kW @ 400V
AC53a 3.5-15:50-6
AC53a 3.0-10:50-6
AC53a 3.5-15:50-6
AC53a 4.0-20:50-6
AC53a 4.5-30:50-6
3
IS3x0255N
132
255A
222A
195A
171A
IS4x0360N
160
360A
351A
303A
259A
IS4x0430N
220
430A
413A
355A
301A
IS4x0650N
315
650A
629A
532A
437A
IS4x0790N
400
790A
790A
694A
567A
IS4x0930N
500
930A
930A
800A
644A
IS561200N
600
1200A
1200A
1135A
983A
IS561410N
700
1410A
1355A
1187A
1023A
IS561600N
800
1600A
1600A
1433A
1227A
Size
1A
Size
1B
2
4
5
Ratings for Digistart IS models IS3x0255N and above are detailed using the AC53a utilisation code specified by IEC60947-4-2
255 A: AC-53a 3.0 -10 :50 -6
Start current rating (A)
Starts per hour
Start current (multiple of FLC)
On-load duty cycle (%)
Start time (s)
12
Digistart specifications
Digistart CS
Digistart IS
Start modes
Constant current/Current limit
Start modes
Constant current/Current limit
Current ramp
Current ramp
Stop modes
Coast to stop
Adaptive
Kickstart
TVR soft stop
Stop modes
General
Coast to stop
Current Range
18A to 200A (nominal)
TVR soft start
Motor connection
In-line
Adaptive
Bypass
Internal
Supply
Mains Voltage
CSx4xxx
200 to 440Vac (+10% / -15%)
CSx5xxx
200 to 575Vac (+10% / -15%)
Control Voltage
110 to 240Vac (+10% / -15%)
or 380 to 440Vac (+10% / -15%)
Mains Frequency
45Hz to 66Hz
Inputs
Start
Normally Open, 300Vac max
Stop
Normally Closed, 300Vac max
General
Current Range
23A to 1600A (nominal)
Motor connection
In-line or inside delta
Bypass
Integrated internal or external
Supply
Mains Voltage
ISx4xxxxx
200 to 440Vac (±10%)
ISx6xxxxx
380 to 690Vac (±10%)
Control Voltage
110 to 210Vac (+10% / -15%)
or 220 to 440Vac (+10% / -15%)
Mains Frequency
45Hz to 66Hz
Inputs
Motor Thermistor
Relay Outputs
Inputs
Active 24Vdc, 8mA approx
Normally Open
Main Contactor
Normally Open, 6A, 30 Vdc resistive
/ 2A, 400Vac, AC11
Start
Stop
Normally Closed
Programmable Relay
Normally Open, 6A, 30 Vdc resistive
/ 2A, 400 Vac, AC11
Reset
Normally Open or Closed
Environmental
RoHS compliant
As standard
Programmable Inputs
Input A
Normally Open or Closed
Input B
Normally Open or Closed
Motor Thermistor
Protection
RTD/PT100
CSxx018 to CSxx085
IP20
CSxx140 to CSxx200
IP00
Operating temperature
-10°C to +40°C, max 60°C with
derating
Relay outputs
Storage temperature
-25°C to + 60°C
Run Relay
Humidity
5% to 95% Relative Humidity
Programmable Outputs
Conformal Coating
As standard
Relay A
Normally Open
Relay B
Changeover
Relay C
Changeover
Analog Output
0-20 mA or 4-20 mA
Outputs
10A at 250Vac resistive
5A at 250Vac, AC15 pf 0.3
Normally Open
24 Vdc Output
Environmental
RoHS compliant
As standard
Protection
IS1x0023B to IS1x0105B
IP20
IS2x0145B to IS5x1600N
IP00
Operating temperature
-10°C to +40°C, max 60°C with
derating
Storage temperature
-25°C to 60°C
Humidity
5% to 95% Relative Humidity
Conformal coating
As standard
13
Digistart dimensions
Digistart CS
Digistart IS
Fieldbus option
W
W
W
2 min
H
H
H
Ready
Stop
Run
Star
t
M
F1
Trip
F2
Reset
Loc
al
LCL
RMT
D
D
D
Digistart CS dimensions
Digistart IS dimensions
Size
Width (W)
Height (H)
Depth (D)
Weight
1
98mm
(3.86in)
203mm
(7.99in)
168mm
(6.61in)
2.1kg
(4.63lb)
1A
2
145mm
(5.71in)
215mm
(8.46in)
196mm
(7.72in)
4.1kg
(9.04lb)
1B
3
202mm
(7.95in)
240mm
(7.99in)
217mm
(8.54in)
6.5kg
(14.33lb)
Fieldbus option dimensions
Option
Width (W)
Height (H)
Depth (D)
Weight
Fieldbus
35mm
(1.38in)
157mm
(6.18in)
90mm
(3.54in)
0.25kg
(0.6lb)
Size
Width (W)
Height (H)
Weight
196mm
(7.72in)
3.2kg
(7.1lb)
226mm
(8.90in)
4.8kg max
(10.6lb)
156.4mm
(6.16in)
294.6mm
(11.60in)
2
282mm
(11.10in)
438mm
(17.24in)
254mm
(10.00in)
16kg
(35.3lb)
3
394mm
(15.51in)
460mm
(18.11in)
284mm
(11.18in)
25kg
(55.1lb)
4
430mm
(16.93in)
694mm*
(27.32in)*
302mm
(11.89in)
53.5kg max
(118lb)
5
574mm
(22.60in)
862mm*
(33.94in)*
364mm
(14.33in)
140kg
(308.7lb)
*Maximum height inclusive of busbar
14
Depth (D)
Other Control Techniques products
Our simple, flexible product lines make choosing the right drive very easy. For more demanding solutions our
engineers, located within our Drive Centre and Reseller network, are available to discuss your needs and provide
advice. For further details, please refer to the brochures below.
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15
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