Schneider Electric

Catalog

04

Altistart 48

Panel-Mount Soft Starts

File 8636

CONTENTS

Description Page

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Technical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13

Voltage References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Powersuite

®

Advance Dialog Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-17

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-19

Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-24

Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-32

Conventional Starting Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-34

Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

Altistart 48 Panel-Mount Soft Starts

Introduction

AC Line Supply

Motor

Presentation

2

©

2004 Schneider Electric All Rights Reserved

4/04



Introduction

Applications

The ATS48 soft start is a controller with 6 thyristors. It is used for torque-controlled soft starting and stopping of three-phase asynchronous squirrel cage motors with power ranges between 3 and 1200 hp.

ATS48 soft starts offer soft starting and deceleration functions, machine and motor protection functions, and functions for communicating with control systems. These functions are designed for use in state-ofthe-art centrifugal machines, pumps, fans, compressors, and conveyors in the construction, food and beverage, and chemical industries. The high-performance algorithms of the ATS48 soft start contribute significantly to its robustness and ease of setup.

The ATS48 soft start is a cost-effective solution which can:

• Reduce machine operating costs by reducing mechanical stress and improving machine availability

• Reduce the stress placed on the electrical distribution system by reducing line current peaks and voltage drops during motor starts

The ATS48 soft start is rated for three-phase voltages 208 to 690 V, 50/60 Hz, and for standard and severe duty applications.

Functions

The ATS48 soft start is supplied ready for use in a standard duty application with Class 10 motor thermal overload protection. All devices include a built-in keypad display which can be used to modify the configuration to adapt it to the application and individual customer requirements.

Soft Start performance functions:

• Exclusive torque control system (TCS) patented by Schneider Electric

• Constant control of the torque supplied to the motor during acceleration and deceleration periods (significantly reducing pressure surges)

• Adjustments for ramp and the starting torque

• The soft start can be bypassed using a contactor at the end of the starting period while maintaining electronic overload protection (bypass function)

• Wider frequency tolerance for generator set

(source) power supplies

Machine and motor protection functions:

• Built-in motor thermal overload protection

• Processing of information from PTC thermal probes

• Monitoring of the starting time

• Protection against underloads and overcurrents during continuous operation

Extended I/O functions for integration into control systems:

• 4 logic inputs, 2 logic outputs, 3 relay outputs, and 1 analog output

• Display of electrical values, running conditions, and operating time

• Pull-apart terminal connectors

• Function for configuring a second set of motor

• RS-485 serial link for connection to a

Modbus

®

system parameters and easy-to-adapt settings

Options

A remote keypad display can be mounted on the door of a wall-mounted or floor-standing enclosure.

PowerSuite advanced dialog solutions:

• PowerSuite Pocket PC with PPC type terminal.

• PowerSuite software workshop.

(Version 1.30, build 5 or higher)

• A range of wiring accessories for connecting the soft start to PLCs via a Modbus

• Ethernet, Fipio

®

, DeviceNet

®

Systems connection.

™

and Profibus network communication options

®

DP

Characteristics: pages 4 to 7 Dimensions: pages 16 to 17 Wiring Diagrams: pages 20 to 23

©


3

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Technical Characteristics

Technical Characteristics

Environment

Conformity to standards

e marking

Product approvals

Pollution degree

Vibration resistance

Shock resistance

Soft start noise level (2)

Fans

Maximum operating altitude

Soft starts ATS48D17Y to 48C11Y

Soft starts ATS48C14Y to 48M12Y (1)

Conforming to IEC 60068-2-6


Soft starts ATS48D32Y to D47Y

Soft starts ATS48D62Y to C11Y

Soft starts ATS48C14Y to C17Y



Soft starts ATS48C79Y to M12Y

Soft starts ATS48D17Y and D22Y

Soft starts ATS48D32Y to M12Y dBA 52 dBA 58 dBA 50 dBA 54

The ATS48 soft starts have been developed and performance tested in accordance with international standards, in particular with the starter product standard EN/IEC 60947-4-2.

CE marking in accordance with the harmonized standard

EN/IEC 60947-4-2.

UL, CSA

DNV, C-Tick, Ghost, CCIB

IP 20 (IP 00 in the absence of connections)

IP 00

1.5 mm from 2 to 13 Hz

1 gn from 13 to 200 Hz

15 g for 11 ms dBA dBA

55

60

Natural convection

Forced convection. The fans are activated automatically when a temperature threshold is reached. For flow rate, see page 19.

14 to 104 °F (-10 to 40 °C) without derating

Up to 140 °F (60 °C), derate the current by 2% for each °C above 40 °C

(104 °F)

14 to 122 °F (-10 to 50 °C) with user supplied shorting/bypass contactor

Operation

Ambient temperature around the unit

Storage, conforming to

IEC 60947-4-2

Maximum relative humidity


Maximum ambient pollution

Conforming to IEC 60664-1

-13 to 158 °F (- 25 to 70 °C)

95% without condensation or dripping water

Level 3 ft (m)

3300 ft (1000 m) without derating. Above this, derate the nominal current of the soft start by 2.2% for each additional 330 ft (100 m) to a maximum of 6600 ft (2000 m).

Operating position

Maximum permanent angle in relation to the normal vertical mounting position

Electrical characteristics

Operating category


Three-phase supply voltage

Soft starts ATS48pppY (3)

Frequency

Nominal soft start current

SCRs

Motor power

Soft starts ATS48pppY



V

Hz

AC-53a

208 - 15% to 690 + 10%

50/60 ± 5% (automatic)

50 or 60 ± 20% (must be set)

A 17 to 1200

PIV 1800 kW

HP

3 to 900

2 to 1200

Voltage indicated on the motor nameplate

Soft start control circuit supply voltage



V

V

208 to 690

110 - 15% to 230 + 10%, 50/60 Hz

Maximum control circuit consumption

(with fans operating)

Relay output

(2 configurable outputs)

Soft starts ATS48D17Y to C17Y


W

W

30

50

Soft starts ATS48C41Y to M12Y W 80

3 relay outputs (R1, R2, R3), normally open contacts 1 N.O.

Minimum switching capacity: 10 mA for 6 Vdc.

Maximum switching capacity on inductive load: 1.8 A for 230 Vac and 30 Vdc (power factor= 0.5 and L/R=20 ms). Maximum nominal operating voltage is 400 Vac.

Factory setting: R1 assigned as the fault relay (configurable)

R2 assigned as the end of starting relay to control the soft start bypass relay

R3 assigned as motor powered (configurable)

(1) Protective covers can be fitted to the power terminals of ATS48C14Y to C32Y soft starts. ATS48C41Y to 48M12Y soft starts have protection on the front panel and on the sides.

(2) Soft starts located 3 ft. (1 m) away. The noise levels may change depending on the characteristics of the fans.

(3) Throughout this catalog, the symbol “•” designates a portion of the catalog number that varies with controller rating.



4

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4/04




Electrical characteristics

(continued)

Logic inputs LI (2 configurable inputs)

Internal source available

Logic outputs LO (configurable)

Analog output AO (configurable)

Input for PTC probe

Maximum I/O connection capacity

Communication

Protection

Current settings

Starting mode

Thermal

Line protection

4 logic inputs: Stop, Run, LI3, LI4; Impedance: 4.3 k

Ω, isolated

+ 24 V input (maximum 30 V) I max. 8 mA

State 0 if V < 5 V

State 1 if V > 11 V

One 24 V output, isolated and protected against short-circuits and overloads.

Accuracy ± 25%. Max. current 200 mA.

2 logic outputs LO1 and LO2 with 0 V common, compatible with level 1 PLC, according to standard IEC 65A-68.

+ 24 V input (minimum: +12 V, maximum: + 30 V) to LO+

Maximum LO output current: 200 mA if external 24 V power supply is used

Current output 0-20 mA or 4-20 mA

Maximum load impedance: 500

Ω

Accuracy ± 5% of the maximum value

Total resistance of probe circuit 750

Ω at 25 °C (77 °F), according to IEC 60 738-A

12 AWG (2.5 mm

2

)

RS-485 multidrop serial link integrated in the starter, for Modbus

®

Systems, with RJ45 type connector

Transmission speed 4800, 9600 or 19200 bps

Maximum number of ATS48 soft starts connected: 18

Other uses:

- connection to a remote keypad display or

- connection to a PC or

- connection to other buses and networks via communication options.

Built-in, starter and motor (calculated and/or thermal protection with PTC probes)

Phase failure, indicated by output relay

The nominal motor current, In, can be adjusted from 0.4 to 1.3 times the starter nominal current.

Adjustment of the maximum starting current from 1.5 to 7 times the motor In, limited to

5 times the starter nominal current.

By torque control with starter current limited to 5 In maximum.

Factory setting: 4 In for standard operation on 15 s torque ramp

Freewheel stop (factory setting)

Programmable between 0.5 and 60 s (for pump applications)

Stopping mode

Freewheel stop

Controlled stop on torque ramp

Braked stop

Electromagnetic compatibility EMC

(1)

Controlled dynamically by the flux

Standards Test levels

Examples

(sources of interference)

Summary of immunity tests carried out with the

ATS48 soft start

IEC 61000-4-2 level 3

Electrostatic discharge:

- by contact

- in the air

IEC 61000-4-3 level 3

Radiated electromagnetic fields

6 kV

8 kV

10 V/m

IEC 61000-4-4 level 4

Rapid electrical transients:

- power supply cables

- control cables

IEC 61000-4-5 level 3

Shock wave:

- phase/phase

- phase/ground

4 kV

2 kV

1 kV

2 kV

IEC 61000-4-12 level 3

Damped oscillating waves 1 kV - 1 M Hz

According to IEC 60947-4-2, class A, on all starters

Contact off an electrically charged individual

Equipment transmitting radio frequencies

Opening/closing of a contactor

-

Oscillating circuit on the line supply

Radiated and conducted emissions

According to IEC 60947-4-2, class B, on starters up to 170 A: ATS48D17p to 48C17p.

Must be bypassed at the end of starting

(1) The soft starts conform to IEC 60947-4-2 (EMC). This standard ensures a level of immunity for products and a level of emitted interference. In steady state, the interference emitted is below that required by the standard.

NOTE:

• Power factor correction capacitors can only be used upstream of the ATS48 soft start and only powered up at the end of starting.

• The soft start must be grounded to meet regulations concerning leakage currents (

≤ 30 mA). If the

installation involves several soft starts on the same supply line, each soft start must be grounded separately.

Characteristics: pages 4 to 7


Dimensions: pages 16 to 17 Wiring Diagrams: pages 20 to 23

©


5

4/04




TORQUE CHARACTERISTICS

In the following diagrams, the curves indicate changes in the torque that depend on the starting current of a three-phase asynchronous motor.

Curve 1: full voltage starting

Curve 2: starting in current limiting mode

Torque curve, Ts1, indicates the total torque range available depending on the limiting current Is1.

Limiting the starting current, Is, to a preset value, Is1, reduces the starting torque, Ts1, to a value which is almost equal to the square of currents Is1/Is.

Example:

For motor characteristics: Ts = 3 Tn for Is = 6 In, limit the current to Is1 = 3 In (0.5 Is) resulting in a starting torque Ts1 = Ts x (0.5)² = 3 Tn x 0.25 = 0.75 Tn

STARTING CURRENT

I/In

6

1) Full voltage starting current

2) Starting current limited to Is1

5

1

4

Is1

2

3

2

2

1

0

0

4

3

1

0

0 0.25

0.5

STARTING TORQUE

T/Tn

6

5

0.25

Ts1

1

0.5

2

3

0.75

1

Motor speed

0.75

1

Motor speed

1) Full voltage starting torque

2) Starting torque with current limited to Is1

3) Load torque


6

©



4/04





CONVENTIONAL STARTING USING CURRENT LIMITATION OR VOLTAGE RAMP

I/In

4

3

2

1

2

Motor speed

1

0.5

With current limitation Is1, the accelerating torque applied to the motor is equal to the motor torque

Ts1 minus the resistive torque Tr. The accelerating torque increases in the starting range as the speed changes and is at its highest at the end of acceleration (curve 2). This characteristic means that the load is taken up very abruptly, which is not recommended for pump type applications.

Example of speed curve for starting with current limitation

1) Current applied to the motor (I/In)

2) Motor speed

1

0 t

STARTING WITH THE ATS48 SOFT START

I/In

4

3

2

1

1

2

Motor speed

1

0.5

Torque control on the ATS48 soft start applies the torque to the motor during the entire starting phase if the current required (curve 1) does not exceed the limiting current. The accelerating torque can be virtually constant over the entire speed range

(curve 2). It is possible to set the ATS48 soft start so as to obtain a high torque on starting for a rapid motor speed rise, while limiting its temperature rise, and a lower torque at the end of starting for gradual loading. This control function is ideal for centrifugal pumps or for machines with high resistive torque on starting.

Example of speed curve for starting with torque control

1) Current applied to the motor (I/In)

2) Motor speed

0 t

STOPPING WITH THE ATS48 SOFT START

• Freewheel stop: the motor comes to a freewheel stop.

• Decelerated stop: this type of stop is ideal for pumps. It can be used to effectively reduce pressure surges. Torque control on the ATS48 soft start reduces the effect of hydraulic transients even if the load increases. This type of control makes adjustment easy.

• Braked stop: this type of stop is suitable for high inertia applications because it reduces the stopping time of the machine.


Selection


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7

4/04



Selection

SELECTION CRITERIA FOR AN ATS48 SOFT START UNIT

Select the ATS48 soft start on the basis of three main criteria:

1. AC Mains voltage supply:

— Three-phase AC voltage: 208–690 V

2. The power and the nominal current (motor FLA) indicated on the motor nameplate

3. The type of application and the operating cycle

To simplify selection, the applications are categorized as 2 types:

— Standard duty applications

— Severe duty applications

Standard or severe duty applications define the limiting values of the current and the duty cycle ratings.

Standard Duty Application

In standard duty applications, the ATS48 soft start is designed to provide:

• Starting at 4x In for 23 seconds or at 3x In for 46 seconds from a cold state

• Starting at 3x In for 23 seconds or at 4x In for 12 seconds with a load factor of 50% and with 10 starts per hour or an equivalent thermal cycling

The motor thermal protection conforms to Class 10 and 20 overload protection (see page 27).

Example: Centrifugal pump

Severe Duty Application

In severe duty applications, the ATS48 soft start is designed to provide:

• Starting at 4x In for 48 seconds or at 3x In for 90 seconds from a cold state

• Starting at 4x In for 25 seconds with a load factor of 50% and with 5 starts per hour or an equivalent thermal cycling

The motor thermal protection conforms to Class 10 and 20 overload protection (see page 27).

Example: Grinder

Selecting the Soft Start

First consult page 9 to identify the application type. Once the application type has been identified, select the soft start from pages 12 to 13 according to the supply voltage and the motor power.

Caution:

If the ATS48 soft start is installed inside an enclosure, observe the mounting and derating recommendations on pages 18 and 19.

Selection Criteria

8

©


4/04



Selection

APPLICATION TYPES

Depending on the type of machine, the applications are categorized as standard or severe duty based on the starting characteristics. Examples are given in the table below.

Type of machine

Centrifugal pump

Piston pump

Fan

Cold compressor

Screw compressor

Centrifugal compressor

Piston compressor

Conveyor, transporter

Lifting screw

Drag lift

Lift

Circular saw, band saw

Pulper, butchery knife

Agitator

Mixer

Grinder

Crusher

Refiner

Press

Application Type Functions performed by the ATS48 Soft Start

Starting current

(% In)

Standard

Deceleration (reduction in pressure surges)

Protection against underloads or inversion of the phase rotation direction

300

Starting time

(s)

5 to 15

Standard

Standard

Severe if > 30 s

Standard

Standard

Standard

Severe if > 30 s

Standard

Standard

Standard

Standard

Standard

Control of running dry and direction of rotation of the pump

350

Detection of overloads caused by clogging or underloads

(motor fan transmission broken)

Braking torque on stopping

300

Protection, even for special motors 300

Protection against inversion of direction of phase rotation

Contact for automatic draining on stopping

300


Contact for automatic emptying on stopping

350


Contact for automatic emptying on stopping

350

Overload control for detecting faults or underload control for detecting breaks

300

Overload control for detecting hard spots or underload control for detecting breaks

300

Overload control for detecting jamming or underload control for detecting breaks

Overload control for detecting jamming or underload control for detecting breaks

Constant starting with variable load

400

350

5 to 10

10 to 40

5 to 10

3 to 20

10 to 40

5 to 10

3 to 10

3 to 10

2 to 10

5 to 10

Standard

Severe if > 30 s

Severe

Standard

Standard

Severe

Severe

Standard

Severe

Braking for fast stop 300

Torque control on starting 400

The current display indicates the density of the product 350

The current display indicates the density of the product 350

Braking to limit vibrations during stopping, overload control to detect jamming

Braking to limit vibrations during stopping, overload control to detect jamming

450

400

Torque control on starting and stopping

Braking to increase the number of cycles

300

400

10 to 60

3 to 10

5 to 20

5 to 10

5 to 60

10 to 40

5 to 30

20 to 60

Selection Criteria

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Selection

SPECIAL USES

Other criteria can influence the selection of the ATS48 soft start:

Shorting/Bypass Contactor

Refer to the recommended wiring diagrams on pages 20 to 23.

The soft start can be bypassed by a contactor at the end of starting (to limit the heat dissipated by the soft start). The shorting/bypass contactor is controlled by the soft start and the current measurements.

Thermal protection remains active when the soft start is bypassed.

Multi Motors

Motors may be connected in parallel provided that the power limit of the soft start is not exceeded (the sum of the motor currents must not exceed the nominal current of the soft start selected depending on the type of application). Individual thermal protection is required for each motor.

Brush Motor

The ATS48 soft start can operate with a bypassed stator resistance motor or with a resistance lug. The starting torque is modified in accordance with the rotor resistance. If necessary, maintain a low resistance in order to obtain the required torque to overcome the resistive torque on starting.

A bypassed brush motor has a very low starting torque. A high stator current is required to obtain the sufficient starting torque.

Oversize the soft start so that the value of the limiting current is 7 times that of the nominal current.

NOTE: Ensure that the starting torque of the motor, equal to 7 times the nominal current, is greater than the resistive torque.

NOTE: The ATS48 soft start torque control enables excellent soft starting despite the limiting current being 7 times the nominal current required to start the motor.

2-Speed Motor

The ATS48 soft start can operate with a 2-speed motor. A motor demagnetization period must elapse before changing from low speed to high speed in order to avoid antiphase between the line supply and the motor, which would generate very high currents.

Select the soft start using the three main criteria, see page 8.

Long Motor Cable Lengths

Very long motor cables cause voltage drops due to the resistance of the cable. If the voltage drop is significant, it could affect the current consumption and the available torque. This criteria must be taken into account when selecting the motor and the soft start.

Miscellaneous Application Precautions

Do not use the ATS48 soft start upstream of loads other than motors (for example transformer and resistor type loads).

Do not connect power factor correction capacitors to the terminals of a motor controlled by an

ATS48 soft start.

Selection

10

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4/04


LUFP1


Selection

COMMUNICATION

The ATS48 soft start can be connected directly to a Modbus

®

system using an RJ45 connector. It communicates over the RS-485 serial link (2-wire) using the Modbus

®

system’s RTU protocol. The communication function provides access to the configuration, adjustment, control, and signalling functions of the soft start.

ATS48 ATS48

6

2

4

3

5

1. Communication module

2. Modbus

®

Systems hub LU9GC3

3. Modbus

®

Systems drop cable VW3A8306Rpp

4. Line terminator VW3A8306RC

5. Modbus

®

Systems splitter cable VW3A8306TFpp

6. To other buses or networks

1

3

3

4

The ATS48 soft start can be connected to other buses or networks using the communication modules and accessories below.

Item number

Communication modules

1

3

5

4

2

Ethernet Bridge

DeviceNet Gateway

Profibus DP Gateway

FIPIO Gateway

1/3 meter connection cable (RJ45 to RJ45)

1 meter connection cable (RJ45 to RJ45)

3 meter connection cable (RJ45 to RJ45)

1/3 meter splitter cable (RJ45 daisy chain connection)

1 meter splitter cable (RJ45 daisy chain connection)

RJ45 terminator (2 per package)

Modbus hub (Eight RJ45 ports)


Selection

Dimensions: pages 16 to 17

Catalog number

174CEV30020

LUFP9

LUFP7

LUFP1

VW3A8306R03

VW3A8306R10

VW3A8306R30

VW3A8306TF03

VW3A8306TF10

VW3A8306RC

LU9GC3

Wiring Diagrams: pages 20 to 23

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11

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Selection

ATS48D17Y

Line Voltage 208 to 690 V, Motor Power in HP

For Standard Duty Applications

Motor

Motor power (1)

208 V

HP

75

100

125

150

30

40

50

60

–

200

250

350

400

–

15

20

25

3

5

7.5

10

230 V

HP

100

125

150

–

40

50

60

75

200

250

300

350

450

15

20

25

30

5

7.5

10

–

575 V

HP

250

300

350

400

100

125

150

200

500

600

800

1000

1200

40

50

60

75

15

20

25

30

460 V

HP

200

250

300

350

75

100

125

150

400

500

600

800

1000

30

40

50

60

10

15

20

25

250

320

410

480

110

140

170

210

590

660

790

1000

1200

47

62

75

88

17

22

32

38

Soft Start 208 to 690 V - 50/60 Hz

Soft start current rating (2)

A

Nominal motor current (4)

A

Power dissipated at nominal load

W

240

302

361

414

96

124

156

180

477

590

720

954

1170

40

52

65

77

14

21

27

34

322

391

479

580

695

902

1339

1386

1731

1958

2537

2865

3497

142

201

245

290

59

74

104

116

Catalog number

ATS48D17Y

ATS48D22Y

ATS48D32Y

ATS48D38Y

ATS48D47Y

ATS48D62Y

ATS48D75Y

ATS48D88Y

ATS48C11Y

ATS48C14Y

ATS48C17Y

ATS48C21Y

ATS48C25Y

ATS48C32Y

ATS48C41Y

ATS48C48Y

ATS48C59Y

ATS48C66Y

ATS48C79Y

ATS48M10Y

ATS48M12Y

Weight lb (kg)

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

18.3 (8.3)

18.3 (8.3)

18.3 (8.3)

18.3 (8.3)

27.3 (12.4)

27.3 (12.4)

40.1 (18.2)

40.1 (18.2)

40.1 (18.2)

113.3 (51.4)

113.3 (51.4)

113.3 (51.4)

113.3 (51.4)

253.6 (115.0)

253.6 (115.0)

253.6 (115.0)

ATS48C14Y

ATS48M12Y

For Severe Duty Applications

Motor

Motor power (1)

208 V 230 V 460 V 575 V

Soft Start 208 to 690 V - 50/60 Hz

Soft Start

Current

Rating (3)

A


A


W

Catalog number

Weight

HP HP HP HP lb (kg)

75

100

125

150

30

40

50

60

–

15

20

25

3

5

7.5

10

60

75

100

125

25

30

40

50

10

–

15

20

2

3

5

7.5

7.5

10

15

20

25

30

40

50

60

75

100

125

150

200

250

300

10

15

20

25

30

40

50

60

75

100

125

150

200

250

300

350

12

17

22

32

38

47

62

75

88

110

140

170

210

250

320

410

14

21

27

34

40

52

65

77

96

124

156

180

240

302

361

414

46

59

74

99

116

153

201

245

252

306

391

468

580

695

1017

1172

ATS48D17Y

ATS48D22Y

ATS48D32Y

ATS48D38Y

ATS48D47Y

ATS48D62Y

ATS48D75Y

ATS48D88Y

ATS48C11Y

ATS48C14Y

ATS48C17Y

ATS48C21Y

ATS48C25Y

ATS48C32Y

ATS48C41Y

ATS48C48Y

150

–

200

250

–

200

250

300

350

400

500

600

400

500

600

800

480

590

660

790

477

590

720

954

1386

1731

2073

2225

ATS48C59Y

ATS48C66Y

ATS48C79Y

ATS48M10Y

113.3 (51.4)

113.3 (51.4)

253.6 (115.0)

253.6 (115.0)

350 350 800 1000 1000 1170 2865

ATS48M12Y

253.6 (115.0)

(1) Value indicated on the motor nameplate.

(2) Corresponds to the soft start’s continuous current rating with overload protection set to Class 10.


(4) This factory setting corresponds to the value of the nominal current of a standard motor according to NEC, 460 V, Class 10 (standard application). Adjust the value of parameter In to match the motor’s full load amperage rating.

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

18.3 (8.3)

18.3 (8.3)

18.3 (8.3)

18.3 (8.3)

27.3 (12.4)

27.3 (12.4)

40.1 (18.2)

40.1 (18.2)

40.1 (18.2)

113.3 (51.4)

113.3 (51.4)


Selection


12

©


4/04



Selection

Line Voltage 208 to 690 V, Motor Power in kW

400 V kW

132

160

220

250

55

75

90

110

315

355

400

500

630

22

30

37

45

7.5

11

15

18.5

For Standard Duty Applications

Motor

Motor power (1)

230 V kW

75

90

110

132

30

37

45

55

160

–

220

250

355

4

5.5

7.5

9

11

15

18.5

22

440 V kW

132

160

220

250

55

75

90

110

355

400

500

630

710

22

30

37

45

7.5

11

15

18.5

500 V kW

160

220

250

315

75

90

110

132

400

–

500

630

800

30

37

45

55

9

11

18.5

22

525 V kW

160

220

250

315

75

90

110

132

400

–

500

630

800

30

37

45

55

9

11

18.5

22

660 V kW

220

250

355

400

90

110

132

160

560

630

710

900

–

37

45

55

75

11

15

22

30

690 V kW

250

315

400

500

90

110

160

200

560

630

710

900

–

37

45

55

75

15

18.5

22

30

250

320

410

480

110

140

170

210

590

660

790

1000

1200

47

62

75

88

17

22

32

38

Soft Start 208 to 690 V - 50/60 Hz


A


A


W

240

302

361

414

96

124

156

180

477

590

720

954

1170

40

52

65

77

14

21

27

34

322

391

479

580

695

902

1339

1386

1731

1958

2537

2865

3497

142

201

245

290

59

74

104

116

Catalog number

ATS48D17Y

ATS48D22Y

ATS48D32Y

ATS48D38Y

ATS48D47Y

ATS48D62Y

ATS48D75Y

ATS48D88Y

ATS48C11Y

ATS48C14Y

ATS48C17Y

ATS48C21Y

ATS48C25Y

ATS48C32Y

ATS48C41Y

ATS48C48Y

ATS48C59Y

ATS48C66Y

ATS48C79Y

ATS48M10Y

ATS48M12Y

Weight lb (kg)

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

18.3 (8.3)

18.3 (8.3)

18.3 (8.3)

18.3 (8.3)

27.3 (12.4)

27.3 (12.4)

40.1 (18.2)

40.1 (18.2)

40.1 (18.2)

113.3 (51.4)

113.3 (51.4)

113.3 (51.4)

113.3 (51.4)

253.6 (115.0)

253.6 (115.0)

253.6 (115.0)

For Severe Duty Applications

Motor

Motor power (1)

230 V 400 V 440 V 500 V 525 V 660 V 690 V

Soft Start 208 to 690 V - 50/60 Hz


A


A


W

Catalog number

Weight kW kW kW kW kW kW kW lb (kg)

55

75

90

110

22

30

37

45

3

4

5.5

7.5

9

11

15

18.5

5.5

7.5

11

15

18.5

22

30

37

45

55

75

90

110

132

160

220

5.5

7.5

11

15

18.5

22

30

37

45

55

75

90

110

132

160

220

7.5

9

11

18.5

22

30

37

45

55

75

90

110

132

160

220

250

7.5

9

11

18.5

22

30

37

45

55

75

90

110

132

160

220

250

9

11

15

22

30

37

45

55

75

90

110

132

160

220

250

355

11

15

18.5

22

30

37

45

55

75

90

110

160

200

250

315

400

12

17

22

32

38

47

62

75

88

110

140

170

210

250

320

410

14

21

27

34

40

52

65

77

96

124

156

180

240

302

361

414

46

59

74

99

116

153

201

245

252

306

391

468

580

695

1017

1172

ATS48D17Y

ATS48D22Y

ATS48D32Y

ATS48D38Y

ATS48D47Y

ATS48D62Y

ATS48D75Y

ATS48D88Y

ATS48C11Y

ATS48C14Y

ATS48C17Y

ATS48C21Y

ATS48C25Y

ATS48C32Y

ATS48C41Y

ATS48C48Y

132

160

–

220

250

315

355

400

250

355

400

500

315

400

–

500

315

400

–

500

400

560

630

710

500

560

630

710

480

590

660

790

477

590

720

954

1386

1731

2073

2225

ATS48C59Y

ATS48C66Y

ATS48C79Y

ATS48M10Y

113.3 (51.4)

113.3 (51.4)

253.6 (115.0)

253.6 (115.0)

250 500 630 630 630 900 900 1000 1170 2865

ATS48M12Y

253.6 (115.0)

(1) Value indicated on the motor nameplate.



(4) This factory setting corresponds to the value of the nominal current of a standard motor according to NEC, 460 V, Class 10 (standard application). Adjust the value of parameter In to match the motor’s full load amperage rating.

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

10.8 (4.9)

18.3 (8.3)

18.3 (8.3)

18.3 (8.3)

18.3 (8.3)

27.3 (12.4)

27.3 (12.4)

40.1 (18.2)

40.1 (18.2)

40.1 (18.2)

113.3 (51.4)

113.3 (51.4)


4/04

©


13



Remote Keypad Display and Protective Covers

Remote Terminal/Keypad, Protective Covers, Documentation

REMOTE KEYPAD DISPLAY

The remote keypad display can be mounted on the door of a wall-mounted or floor-standing enclosure.

It has the same signalling display and configuration buttons as the keypad display integrated in the soft start. A switch to lock access to the menus is located on the back of the keypad display.

The option includes:

• The remote keypad display

• A mounting kit containing a cover, screws and an IP 65 seal on the front panel

• A 9.82 ft. (3 m) connecting cable with a 9-pin SUB-D connector for connecting to the keypad display and an RJ45 connector for connecting to the ATS48 soft start.

VW3G48101

ESC

ENT

1

3

4

1. Information is displayed in the form of codes or values in three 7-segment displays

2. Buttons for scrolling through the menus or modifying values

3. ESC: Button for exiting the menus (cannot be used for validation purposes)

4. ENT: Validation button for entering a menu or confirming the new value selected

2

Description

Remote keypad display

Catalog number Weight lb (kg)

VW3G48101

0.44 (0.20)

PROTECTIVE COVERS FOR POWER TERMINALS

To be used with tags closed

For Soft Starts

ATS48C14Y and ATS48C17Y

ATS48C21Y, ATS48C25Y

and ATS48C32Y

(1) The soft starts have 9 unprotected power terminals.

Number of covers per set

6 (1)

6 (1)

Catalog number Weight lb (kg)

LA9F702

0.6 (0.25)

LA9F703

0.6 (0.25)

LA9F702

14

©


4/04



Powersuite® Advanced Dialog Solutions

PowerSuite Advanced dialog Solutions

The PowerSuite advanced dialog solutions can be used for Telemecanique drives and soft starts. They enable communication with the product from a Pocket PC, Personal Computer, or a dedicated terminal.

The PowerSuite dialog solutions, with a Pocket PC or PC, enable files to be prepared for uploading to the drives and the soft starts. The PowerSuite software creates its files ensuring consistency between the configuration/adjustment functions of the product.

PowerSuite Pocket PC

The Pocket PC can be used during preparation, programming, setup and maintenance. It comprises a

Pocket PC terminal and corresponding connection accessories. The software is integrated into a

Windows CE environment. The software incorporates all the functions of integrated and remote terminals (drive or soft start configuration and adjustment, control, signalling, etc).

The Pocket PC can be used:

• Alone to prepare and store configuration/adjustment files (integral battery or line supply).

• Connected to the drive or to the soft start for configuration, adjustment or control purposes or to upload a configuration/adjustment file from the Pocket PC to the product or download a configuration/ adjustment file from the product to the Pocket PC.

PowerSuite Software for PC

The PowerSuite software is used to set up a drive or a soft start from a PC in a Microsoft

®

Windows environment. The software incorporates all the functions of integrated and remote terminals (drive or soft start configuration and adjustment, control, signalling, etc.) in a Windows environment. It can be used:

• Alone to prepare and store drive or soft start configuration files. The drive or soft start configuration can be printed out on paper or can be exported to office automation software.

• Connected to the drive or soft start for configuration, adjustment or control purposes, or for uploading a configuration/adjustment file from the PC to the product or downloading from the product to the PC.

Connection is via a link between the drive or soft start connector and the serial port on the PC.

9

POWERSUITE Products Available from Schneider Electric

Catalog number

Description

VW3A8104

VW3A8106

POWERSUITE commissioning software on CD

PC connection kit. Includes the following to connect a PC to an ATV11, ATV28, ATV58, ATS48, or TeSys U controller:

1 m (3.28 ft.) cable with RJ45 connectors

RS-232 to RS-485 adapter with RJ45 and DB9 female connectors

RJ45 to DB9 male adapter for use with an ATV58 controller

Cable adapter for use with an ATV11 controller, VW3A11301

Optional compact flash memory module loaded with POWERSUITE software, for use with JORNADA and iPAQ PPCs

VW3A8110

Pocket PC connection kit. Includes the following to connect a JORNADA or iPAQ PPC to an ATV11, ATV28, ATV58, ATS48, or TeSys U controller:

VW3A8111

0.5 m (1.64 ft.) cable with RJ45 connectors

RS-232 to RS-485 adapter with RJ45 and DB9 male connectors

VW3A11301

RS-485 to TTL cable adapter for use with the ATV11 controller

RJ45 to DB9 male adapter for use with an ATV58 controller

Cable adapter for use with an ATV11 controller, VW3A11301

For more information about PowerSuite software, obtain Data Bulletin 8806DB0001R_ available at www.us.SquareD.com.

Magelis

®

Display Unit With Matrix Screen

The Magelis

®

display unit with matrix screen can be used to monitor, diagnose, and adjust up to 8

ATS48 soft starts in 5 languages (English, French, German, Spanish, Italian). It can display variables in alphanumeric format with European, Cyrillic, or Asian fonts in 4 sizes, or it can display icons or background images in black and white, as well as animations in barchart or gauge format. The terminal has a backlit LCD with 8 lines of 40 characters.

Description

Magelis

®

display unit with matrix screen

Catalog number

XBTHM017010A8

Weight lb (kg)

1.3 (0.60)

©


15

4/04



Dimensions

ATS48D17Y to ATS48D47Y

4x 7 M6

ATS48D62Y to ATS48C11Y

4x 7

5.9

150

M6

7.48

190

Maximum connection capacity:

Ground connections: 8 AWG (10 mm

2

)

Power terminals: 8 AWG (16 mm

2

)

ATS48C14Y to ATS48C17Y

0.2

5

6.26

159

=

M6

3.94

100

6.3

160

= inches mm

0.71

18

=

1.58

40

M6

6.30

160

=

0.79

20

4x 7

1/L1 3/L2 5/L3

9.25

235


Ground connections: 4 AWG (16 mm

2

)

Power terminals: 2/0 (50 mm

2

)

7.48

190

M6


Ground connections: Busbar (120 mm

2

)

Power terminals: 2/0 (95 mm

2

) inches mm

0.2

5

0.2

5

10.43

265

6.38

162

4.59

116.5

ATS48C21Y to ATS48C32Y

0.2

5

5.37

136.5

1.5

38

M6

2.44

62

2.44

62 7.87

200

9x 8 inches mm

1.38

35

=

2.6

66

9.84

250

M10 9x 12

=

4x 9

1/L1 3/L2 5/L3



2

)

Power terminals: Busbar (240 mm

2

)

0.2

5

0.2

5

10.43

265

7.74

196.5

5.37

136.5

2.76

70

M10

3.54

90 90

0.79

3.54

20

12.6

320

Characteristics: pages 4 to 7 inches mm

Dimensions: pages 16 to 17

16

©



4/04


ATS48C41Y to C66Y

0.2

5

6.5

165

Dimensions

4x 9

=

4.72

4.53

11.8

300

4.53

120

5

115

2.72

127

69

1L1

M10

115

3L2

=

5L3


Dimensions



2

)

Power terminals: Busbar (2 x 240 mm

2

)

0.2

5

0.2

5

11.8

300

8.5

216

6.5

165

ATS48C79Y to M12Y

0.2

5

6.69

170

58

0.01

1.98

50.25

0.25

M10

4.53

115

1.57

40

4.53

115

15.75

400

=

5.08

6.46

129

13.78

350

10.12

257

1.02

26

8.8

164 223.5

6x 9 M10 inches mm

1.02

26

13.78

350

8.25

209.5

18x 14

1.02

26

=

6.1

155

7.09

180


Ground connections: Busbar (2 x 240 mm

2

)

Power terminals: Busbar (4 x 240 mm

2

)

1.02

26

8.03

204

1.02

26

8.98

228

1.02

26

0.2

5

0.2

4.59

5

7.74

315

2.36

60

3.74

95

7.4

188


M10

2.36

60

30.31

770

Dimensions: pages 16 to 17 inches mm


©


17

4/04



Mounting

Mounting

MOUNTING THE REMOTE KEYPAD DISPLAY

VW3G48101

0.95

24

2.2

55.6

inches mm

A

4xØ3.5

Ø36

MOUNTING RECOMMENDATIONS

• Install the ATS48 soft start vertically, within ± 10°.

• Do not place the ATS48 soft start near sources of heat.

• Leave sufficient free space to ensure that the air required for cooling can circulate from the bottom to the top of the unit.

NOTE: The IP 00 version of the ATS48 soft start must be fitted with a protective cover to protect personnel against electrical contact. Protective covers are available for the ATS48C14Y to ATS48C32Y.

They should be ordered separately. See page 14.

2

50

2

50 inches mm

0.4

10


Mounting

18

©



4/04


(104 ˚F)

(104 ˚F)


Mounting

MOUNTING IN A METAL WALL-MOUNTED OR FLOOR-STANDING ENCLOSURE

WITH DEGREE OF PROTECTION TYPE 1 (IP 23) OR TYPE 12 (IP 54)

• Observe the mounting recommendations on page 18.

• To ensure proper air circulation in the soft start:

— Fit ventilation grilles

— Ensure that there is sufficient ventilation. If not, install forced ventilation with a filter.

The openings and/or fans must provide a flow rate at least equal to that of the soft start fans

(see the table below)

• Use special filters with Type 12 (IP 54) protection.

Fan Flow Rate Depending On The Soft Start Rating

ATS48 Soft Start

ATS48D32Y and D38Y

ATS48D47Y

ATS48D62Y to C11Y

ATS48C14Y and C17Y

ATS48C21Y to C32Y

ATS48C41Y to C66Y

ATS48C29Y to M12Y

Flow rate CFM

24

48

146

235

476

1020

2040

Flow rate m

3

/hour

14

28

86

138

280

600

1200

For non-ventilated ATS48 soft starts (ATS48D17Y and 48D22Y) in metal wall-mounted or floor-standing enclosures with Type 12 (IP 54) degree of protection, install no more than 2" (50 mm) below the soft start to circulate the air inside the enclosure in order to avoid hot spots.

Calculating Enclosure Size

The maximum allowable thermal resistance of the enclosure, Rth (°C/W), is calculated as follows:

Rth =

θ – θe

P

θ = maximum temperature inside enclosure in °C

θe = maximum external temperature in °C

P = total power dissipated in the enclosure in W

• The soft start/motor combinations on pages 12 and 13 can be used in ambient temperatures

≤ 40 °C (104 °F).

• For temperatures between 40 °C and 60 °C (104 °F and 140 °F), derate the maximum permanent current of the soft start by 2% for every degree above 40 °C (104 °F).

• For the power dissipated by the soft starts at rated load: see pages 12 and 13.

• If the starts are infrequent, use a shorting/bypass contactor with the ATS48 soft start at the end of starting to minimize heat dissipation.

Calculate minimum useful heat exchange surface area requirement, S (in

2

):

S =

K

Rth

Rth = thermal resistance of the enclosure (calculated previously)

K = thermal resistance per square inch of the enclosure

K = 186 with enclosure fan

K = 233 without enclosure fan

Compare the effective heat exchange surface area to the proposed wall mounted enclosure, S (in

2

) which should be less than:

S = (Front area) + (Top area) + 2 (Side area)


©


19

4/04



Recommended Wiring Diagrams

Recommended Wiring Diagrams

Nonreversing with Shunt Trip Fault Isolation

Circuit Breaker

w/Shunt Trip

*

*

A

AC LINE

SUPPLY

B

C

1/L1

3/L2

5/L3

A2

2/T1

B2

4/T2

C2

6/T3

M

FU4

*

TO CONTROL

POWER

TRANSFORMER

{

FU2

*

FU1

*

FU3

*

SC

2

SC

SC

T1

*

1

120V

SCA

MOTOR

THERMAL SW

*

4

FU4

(A)

SEE

DETAIL A

*

(B)

(C)

RCR

3

CL2

FAULT

(R1A)

(R1C)

FR

TR

FR

*

TS

TR

*

TS

ST

*

(2 SEC)

G

*

RCR

*

5

TS

END

START UP

(R2A) (R2C)

3

SCA

*

TS

SC

*

2

TS

R

*

FAULT

RELAY

TRIP

RELAY

CB SHUNT

TRIP COIL

RUN

RUN COMMAND

RELAY

SHORTING

CONTACTOR

PILOT RELAY

SHORTING

CONTACTOR

POWER ON

SEE

DETAIL B

(A)

DETAIL A (120 V RCR CONTROL)

2-WIRE CONTROL W / AUTO

HAND

OFF

AUTO

(B)

REMOTE

START

OR (A)

2-WIRE CONTROL W / O AUTO

OFF

ON

(B) OR

(A)

3-WIRE CONTROL

STOP

(C)

120 V RCR CONTROL

STOP

RUN

OR

RCR

+24V

DETAIL B

2-WIRE 24 VDC CONTROL

STOP

RUN

OR

OFF ON

+24V

3-WIRE 24 VDC CONTROL

STOP

RUN

STOP

RUN

+24V

START

(B)

*

+24V

LO+

LO1

LO2

AO1

COM

PTC1

PTC2

R1A

R1C

R2A

R2C

R3A

R3C

CL1

CL2

STOP

RUN

LI3

LI4

ATS48

SOFT START

FAULT

END

START UP

GND

PROGRAMMABLE

N.O. CONTACT

1

2

3

4

5

Connect control power transformer for 120 V secondary voltage.

For shorting contactor operation, add SC with associated control circuit.

Relay contact located on ATS48 controller.

Located at motor. Jumper if switch not present.

Use RCR relay logic for 120 V control of the ATS48. For 24 Vdc control, omit the RCR relay logic and wire controls directly to the

ATS48 (see DETAIL B).

*

= User supplied


20

©



4/04





Nonreversing with Isolation Contactor

SW

*

FU5

*

IC

*

A

FU6

AC LINE

SUPPLY

B

IC

FU7

IC

C

1/L1

3/L2

5/L3

FU1

*

FU2

*

FU3

*

SC

2

SC

SC

T1

*

1

120V

FU4 CL2

MOTOR

THERMAL SW

*

4

SCA

FR

(A)

SEE

DETAIL A

*

(B)

(C)

RCR

3

FAULT

(R1A)

(R1C)

RCR

*

TS

RCR

FR

*

TS

IC

*

TS

5

END

START UP

(R2A) (R2C)

3

SCA

*

TS

SC

*

2

TS

R

*

FR

W

*

IC

G

*

A2

2/T1

B2

4/T2

C2

6/T3

RUN COMMAND

RELAY

FAULT

RELAY

ISOLATION

CONTACTOR

SHORTING

CONTACTOR

PILOT RELAY

SHORTING

CONTACTOR

POWER ON

M

TO CONTROL

POWER

TRANSFORMER

{

FU4

*

RCR

PTC2

R1A

R1C

R2A

R2C

R3A

R3C

LO+

LO1

LO2

AO1

COM

PTC1

RUN

LI3

LI4

+24V

CL1

CL2

STOP

FAULT

RUN

(A)

DETAIL A

2-WIRE CONTROL W / AUTO

HAND

OFF

AUTO

(B)

REMOTE

START

OR (A)


OFF ON

(B) OR

(A)

3-WIRE CONTROL

STOP START

(C)

(B)

END

START UP

PROGRAMMABLE

N.O. CONTACT

*

= User supplied

ATS48

SOFT START

FAULT

GND

1

2

3

4

5


For shorting contactor operation add SC with associated control wiring.


Located at motor. Jumper if switch not present.

Set RCR time slightly longer than expected deceleration time from rated speed to zero speed.


©


21

4/04





Reversing with Isolation Contactors

SW

*

FU5

*

A

FU6

AC LINE

SUPPLY

B

FU7

C

IC1

*

IC1

IC1

1/L1

3/L2

5/L3

A2

2/T1

B2

4/T2

C2

6/T3

M

FU1

*

(A)

FU3

*

IC2

*

FU2

*

IC2

IC2

SC

2

SC

SC

T1

*

1

FU4

*

120V

FU4 CL2

TO CONTROL

POWER

TRANSFORMER

{

CL1 GND

FR

SCA

MOTOR

THERMAL SW

*

FR

4

RFR 5

RRR

6

SEE

DETAIL A

(R1A)

FAULT

(R1C)

3

*

(B)

RRR

(C)

(D)

RFR

RFR

(E)

RRR

IC2

IC1

END

START UP

(R2A) (R2C)

3

RFR

TS

TS

IC2

*

TS

SCA

*

TS

TS

R

*

*

RRR

*

TS

FR

*

TS

IC1

*

SC

*

2

RUN FWD

RELAY

RUN REV

RELAY

FAULT

RELAY

FORWARD

CONTACTOR

REVERSING

CONTACTOR

SHORTING

CONTACTOR

PILOT RELAY

SHORTING

CONTACTOR

POWER ON

RRR IC1

RFR IC2

CL2

STOP

RUN

LI3

LI4

+24V

LO+

LO1

LO2

AO1

COM

PTC1

PTC2

R1A

R1C

R2A

R2C

ATS48

SOFT START

FAULT

END

START UP

1

2

3

4

5

6


For shorting contactor operation, add SC with associated circuitry.


Located at motor.

Jumper if switch not present.

Set RFR time slightly longer than the expected deceleration time from rated forward speed to zero speed.

Set RRR time slightly longer than the expected deceleration time from rated reverse speed to zero speed.

7

Remove these contacts to inhibit direction reversal without first depressing STOP push button.

*

= User supplied

W

*

FAULT

R3A

IC1

G

*

RUN FORWARD

R3C

PROGRAMMABLE

N.O. CONTACT

IC2

A

*

RUN REVERSE

DETAIL A

2-WIRE CONTROL W / AUTO START AUTO DIRECTION

HAND

OFF

AUTO FWD REV

(B)

F R


(A)

FWD

OFF

REV

(B)

(D)

3-WIRE CONTROL

STOP

RUN

REV

RUN

FWD

(B)

(A)

7

(C)

REMOTE

START

R F

(D)

7

(D)

(E)

2-WIRE CONTROL W / AUTO START MANUAL DIRECTION

HAND

OFF

AUTO

FWD REV

(B)

(A)

REMOTE

START

(D)

22

©


4/04



Recommended Component Lists


Description of Logic for Recommended Wiring Diagrams

Item

IC1

IC1A

IC2

IC2A

SC

SCA

TS

RCR

RFR

RRR

ST

TR

FR

Name

Isolation Contactor (Fwd)

Isolation Contactor (Rev)

Shorting Contactor & Pilot Relay

Transient Suppressors

Run Command Relay

Run Forward Relay

Run Reverse Relay

Shunt Trip Coil

Trip Relay

Fault Relay

Description

The isolation contactor logic closes IC1 upon a start command and opens IC1 after the stop is complete. The RCR (or RFR and

RRR for reversing) are timed contacts that must have a time delay greater than the deceleration ramp time or the braking time.

When a coast stop is selected, the time delay must be set for a time that will allow a complete decay of the motor residual voltage.

The isolation contactor will open immediately upon a fault. The pilot relay (IC1A) is required when the IC1 contactor coil exceeds the ATS48 relay output ratings.

Used for reversing applications only, the IC2 must be mechanically interlocked to IC1. A reversing contactor may be used for the combination of IC1 and IC2. In general, the operation of IC2 is identical to IC1. The pilot relay (IC1A) is required when the IC1 contactor coil exceeds the ATS48 relay output ratings

The shorting contactor is used to reduce the heat dissipated by the soft start when the motor is operating at full speed and voltage.

The soft start provides proper sequencing of this contactor by the “end-start-up” relay. When the start is completed, the shorting contactor will be commanded to close. The soft start will continue to monitor the motor thermal state and provide motor overload protection. Upon a stop command, the SC contactor will open, transferring the motor current to the ATS48 soft start to allow for controlled deceleration if desired. The pilot relay (SCA) is required when the SC contactor coil exceeds the ATS48 relay output ratings.

Transient suppression of all relay and contactor coils (except ST) is recommended to minimize the possibility of electrical interference with the soft start electronics and to increase relay contact life.

Used in shunt trip fault isolation installations only if 120 V control of the ATS48 soft start is required.

Used in non-reversing installations with a isolation contactor for proper sequencing of contactor logic. When energized, RCR initiates the start sequence. When de-energized, stopping is initiated. Operator controls can be either on/off selector switch, HOA selector switch or start/stop push buttons. RCR remains energized during a fault. Once the fault condition has been cleared, RCR must be de-energized by a “stop” command then re-energized to restart the soft start.

Used for reversing applications only, this coil duplicates the functionality of RCR for the forward direction and is interlocked with the

RFR relay.

Used for reversing applications only, this coil duplicates the functionality of RCR for the reverse direction and is interlocked with the

RRR relay.

This coil is attached to the shunt trip coil on the disconnect and will energize 2 seconds after a soft start fault by the TR timer contact.

The time delay is to prevent nuisance tripping of the circuit breaker during soft start power-up or during line undervoltage conditions.

Used in shunt trip circuit breaker logic only; coil energized upon a soft start fault.

The fault relay is energized during normal operation and deenergizes if the soft start fault contacts open or if the motor thermal switch (if supplied) opens. FR also provides additional contacts for the soft start fault output.

Suggested Components for Standard Duty Applications

Induction Motor ATS48 Soft Start FU4

Rated hp

208 V

3

(1)

230 V

5

460 V

10

575 V

15

ATS48 Soft Start

Model

ATS48D17Y

Device Rated Current

@ 40 °C (104 °F)

(2)

17

ATS Control

Power Burden (W)

25

Class CC 600 V

Time Delay

@115 V

0.5 A

100

125

150

—

30

40

50

60

75

15

20

25

5

7.5

10

—

7.5

10

—

15

20

25

30

40

50

60

75

100

125

150

—

200

15

20

25

30

40

50

60

75

100

125

150

200

250

300

350

400

20

25

30

40

50

60

75

100

125

150

200

250

300

350

400

500

ATS48D22Y

ATS48D32Y

ATS48D38Y

ATS48D47Y

ATS48D62Y

ATS48D75Y

ATS48D88Y

ATS48C11Y

ATS48C14Y

ATS48C17Y

ATS48C21Y

ATS48C25Y

ATS48C32Y

ATS48C41Y

ATS48C48Y

ATS48C59Y

22

32

38

47

62

75

88

110

145

170

210

250

320

410

480

590

25

30

30

30

30

30

30

30

30

30

50

50

50

80

80

80

0.5 A

0.6 A

0.6 A

0.6 A

0.6 A

0.6 A

0.6 A

0.6 A

0.6 A

0.6 A

1 A

1 A

1 A

1.5 A

1.5 A

1.5 A

200

250

350

250

300

350

500

600

800

600

800

1000

ATS48C66Y

ATS48C79Y

ATS48M10Y

660

790

1000

80

80

80

1.5 A

1.5 A

1.5 A

400 450 1000 1200

ATS48M12Y

1200 80 1.5 A

(1)

Motor full load currents through 500 hp @ 460/575 V, 250 hp @ 230 V, and 200 hp @ 208 V are taken from the National Electric Code (NFPA 70-2002, Table 430.150). Above these ratings, motor full load currents are calculated based upon 1.2 A/hp for 460 V and 2.4 A/hp for 230 V. Motors listed are for standard duty applications. For severe duty applications, select the next larger soft start size.

(2)

The ambient temperature indicated in the table represents the temperature of the air surrounding the ATS48 soft start. Any additional temperature factors associated with the enclosure system or actual installation ambient temperature must be considered when determining the actual rated current (I

CL

) of the soft start. For operating ambient above 40 °C (104 °F) without a shorting/bypass contactor and 50 °C (122 °F) with a shorting/bypass contactor but not exceeding 60 °C (140 °F) , the rated current (I

CL

) of the soft start must be de-rated by 2% per °C.

NOTE: To select control operators (push buttons, pilot lamps, and selector switches), control power transformers, and wire management devices (control and power terminal strips, wire terminations) indicated on the recommended wiring diagram configurations, visit www.us.squared.com.

Recommended Component Lists

4/04

©


23



Recommended Component Lists

Additional Suggested Components for Standard Duty Applications

ATS48 Soft

Start

Contactors

(1), (2), (3)

Disconnect

(4)

ATS48 Model

IC1

Isolation

Contactor

IC2

Reversing

Contactor

(5)

Mechanical

Interlock

SC

Shorting

Contactor (AC1)

Fusible Disconnect

Power Fuses

Class/Rating

Fuse Block

(6)

Molded Case

Switch

(7)

Circuit Breaker

Thermal

Magnetic

(7)

C11Y

C14Y

C17Y

C21Y

C25Y

C32Y

C41Y

C48Y

D17Y

D22Y

D32Y

D38Y

D47Y

D62Y

D75Y

D88Y

LC1D09

LC1D18

LC1D25

LC1D32

LC1D40

LC1D50

LC1D80

LC1D80

LC1D115

LC1D115

LC1F150

LC1F185

LC1F225

LC1F330

LC1F400

LC1F500

LC1D09

LC1D18

LC1D25

LC1D32

LC1D40

LC1D50

LC1D80

LC1D80

LC1D115

LC1D115

LC1F150

LC1F185

LC1F225

LC1F330

LC1F400

LC1F500

(8)

(8)

(8)

(8)

(8)

(8)

(8)

(8)

(8)

(8)

LA9FF970

LA9FG970

LA9FJ970

LA9FJ970

LA9FJ970

LA9FJ970

LC1D09

LC1D18

LC1D25

LC1D32

LC1D40

LC1D50

LC1D80

LC1D80

LC1D115

LC1D115

LC1F150

LC1F185

LC1F225

LC1F330

LC1F400

LC1F500

J / 25

J / 30

J / 40

J / 50

J / 60

J / 80

J / 100

J / 120

J / 150

J / 200

J / 225

J / 300

J / 350

J / 400

J / 500

J / 600

60308J

60308J

60608J

60608J

60608J

61038J

61038J

62003J

62003J

62003J

64033J

64033J

64033J

64033J

6633J

6633J

FHL36000M

FHL36000M

FHL36000M

FHL36000M

FHL36000M

FHL36000M

FHL36000M

KHL36000M

KHL36000M

KHL36000M

LHL36000M

LHL36000M

LHL36000M

LHL36000M

MHL36000M

MHL360006M

FAL36030

FAL36040

FAL36050

FAL36060

FAL36080

FAL36090

FAL36100

KAL36110

KAL36150

KAL36200

LAL36225

LAL36250

LAL36350

LAL36400

MAL36500

MAL36600

C59Y

C66Y

C79Y

M10Y

LC1F500

LC1F630

LC1F630

LC1F780

LC1F500

LC1F630

LC1F630

LC1F780

LA9FJ970

LA9FJ970

LA9FL970

LA9FL970

LC1F500

LC1F630

LC1F630

LC1F780

L / 700

L / 900

L / 1100

L / 1350

(6)

(6)

(6)

(6)

MHL360008M

MHL360008M

MHL36000M

MHL36000M

MAL36800

MAL36900

(9)

(9)

M12Y LC1F780 LC1F780 LA9FX970 LC1F780 L / 1600

(6)

NCL3600012M

(9)

(1)

All coils are selected for 120 V, 60 Hz operation. Refer to the Digest for additional coil voltages or auxiliary contact configurations. One block may be added to each contactor.

(2)

Power terminals are not included with LC1-F contactors. For additional ordering information visit www.us.SquareD.com.

(3)

The use of transient suppressors across all contactor coils is recommended. Refer to the latest editions of Schneider Electric’s full line product catalogs for selection of transient suppressors.

(4)

According to the National Electric Code, branch circuit overcurrent protection must be provided for each soft start. Short circuit protective devices recommended in this table are within NEC requirements for Type 1 coordination.

(5)

Reversing contactors for C11 through M12 soft starts must be assembled from components. Parts quantities for a basic contactor assembly, minus the power connection links and terminals, are indicated before each part number. Refer to the latest editions of Schneider Electric’s full line product catalogs for power connector link and terminal kits. Reversing contactor interlock units used for the C79 through M12 soft starts are designed for vertical interlocking of the individual contactors. Horizontally interlocked contactors are used for D17 through C59 soft starts.

(6)

Fuse holder part number references are for Class J fuses only based on Ferraz Shawmut spring reinforced with box type connectors acceptable for Al/Cu wiring. Class L fuses require bolton connections to user-supplied power bus work.

(7)

The molded case switches and circuit breakers selected require the addition of operator mechanisms to allow operation from the exterior of an enclosure. Refer to the latest editions of

Schneider Electric’s full line product catalogs for operator mechanism information. When using a shunt trip relay for SCR fault isolation, order a disconnect switch with suffix -1021 for addition of shunt trip coil.

(8)

The D Line contactor is available as a reversing configuration. For these applications, change the IC1 part number prefix from LC1- to LC2- to order the IC1 and IC2 combination complete with mechanical interlocks.

(9)

Devices rated above 660 A have not been coordinated with circuit breakers. You must use a Class L fuse for overcurrent protection with ATS48 soft start models C79, M10, and M12.


Functions

24

©



4/04


Current setting with

PowerSuite on PPC


Functions

Summary of Functions

Description

Soft Start factory setting

Adjustment functions

Protection functions

Advanced adjustment functions

Nominal motor current (maximum permanent current)

Limiting current

Acceleration ramp time

Initial starting torque

Selection of the type of stop

Calculated motor thermal protection

Reset motor thermal state

Motor thermal protection with PTC probes

Soft start thermal protection

Motor underload protection

Excessive acceleration time protection

Current overload protection

Protection against line phase inversion

Time before restarting

Motor phase loss detection

Automatic restart

Torque limit

Voltage boost level

Test on low power motor

Activation of the cascade function

Line frequency

Reset kWh or the operating time

Return to factory settings

2 nd

motor adjustment functions

Communication functions

PowerSuite advanced dialog solutions

Application monitoring functions

Logic input application functions

Logic output application functions

Relay and analog output application functions

Function compatibility table

2-wire/3-wire control

Freewheel stop

External fault

Forced to local control mode

Reset motor thermal fault

Activation of the cascade function

Reset all faults

Soft Start Factory Setting

The soft start is supplied ready for use in most applications. The default settings of the primary functions are as follows:

• Nominal motor current

(depends on the soft start rating)

• Limiting current: 400%

• Acceleration ramp time: 15 s

• Initial starting torque: 20%

• Selection of the type of stop: freewheel stop

• Motor thermal protection: class 10

• Time before restarting: 2 s

• Motor phase loss threshold: 10%

• Line frequency: automatic

Functions

• RUN and STOP logic inputs:

2-wire or 3-wire control via wiring

• Logic input LI3: forced freewheel stop

• Logic input LI4: local mode control

(serial link disabled)

• Logic output LO1: thermal motor alarm

• Logic output LO2: motor powered

• Relay output R1: fault relay

• Relay output R3: motor powered

• Analog output: motor current

See pages

p. 29 p. 30 p. 30 p. 30 p. 31 p. 31 p. 31 p. 31 p. 28 p. 29 p. 29 p. 29 p. 29 p. 29 p. 29 p. 29 p. 31 p. 31 p. 31 p. 32 p. 32 p. 32 p. 27 p. 27 p. 28 p. 28 p. 28 p. 28 p. 28 p. 28 p. 25 p. 26 p. 26 p. 26 p. 26 p. 26 p. 27 p. 27

©


25

4/04



Functions

%Tn

100

20

0

Acceleration ramp during time ACC with initial starting torque tq0 = 40% of the nominal motor torque

100

80

60

40

20

0

80

60

40

0 tq0 = 40

ACC t

Decelerated stop by torque control during time dEC with threshold EdC for changing to freewheel stop mode

EdC = 40% of nominal motor torque

%Tn

100

% Tn

EdC

End of controlled deceleration dEC brc = 20 t

Adjustment Functions

• Nominal motor current (maximum continuous current)

The nominal current of the soft start can be adapted to the nominal motor current indicated on the nameplate.

Adjustment range: 0.4 to 1.3 times the soft start nominal current.

• Limiting current

The maximum starting current can be adjusted.

Adjustment range: 150% to 700% of the nominal motor current. Limited to 500% of the maximum permanent current defined for the soft start rating.

• Acceleration ramp time

During the starting phase, the ATS48 soft start applies a torque ramp to the motor. The ramp time (ACC) corresponds to the time it takes the ramp to reach the nominal torque (starting at 0). Adjustment range: 1 to 60 s.

• Initial starting torque

The initial torque tq0 applied to the motor can be used to instantly overcome any resistive starting torque. Adjustment range: 0 to 100% of the nominal motor torque.

• Selection of the type of stop

Three types of stop are available:

— Freewheel motor stop

— Motor stop by deceleration via torque control (pump application)

This type of stop enables a centrifugal pump to decelerate gradually on a ramp in order to avoid a sudden stop. It can be used to dampen the hydraulic transient in order to significantly reduce pressure surges. The deceleration ramp time (dEC) can be adjusted. During deceleration, the pump flow rate decreases and becomes negligible at a certain speed. To continue to decelerate would serve no purpose. A torque threshold (EdC) can be set at which the motor will change to freewheel stop mode, avoiding the unnecessary heating of the motor and the pump.

— InTele

™

braking

The braking torque level (brc) can be adjusted. The dynamic braking time

(T1) corresponds to the time taken to decelerate from 100% to 20% of the nominal motor speed. To improve braking at the end of deceleration, the soft start injects a DC current for an adjustable period of time (T2). It produces less motor heating than traditional DC injection braking. brc = 100

Consult the Schneider Electric Product Support Group

(919-266-8600) for criteria to be met for this feature.

20

0

T1 T2 t

InTele ™ braking stops for different braking torque levels brc

Functions

26

©


4/04



Functions

Protection Functions

t(s)

10000

1000

100

10

1

0.5

1.12

2.00

3.00

4.00

5.00

6.00

7.00

Motor thermal protection curves (cold)

The ATS48 soft start offers functions for protecting the motor and the machine.

30

25

20

15

10

10A

2

Id/In

8.00

• Calculated motor thermal protection

The soft start continuously calculates the temperature rise of the motor based on the nominal current and the actual current absorbed. In order to adapt the

ATS48 soft start to individual motors and applications, several protection classes are offered in accordance with standard IEC 60947-4-2: Class 30,

Class 25, Class 20 (severe duty application), Class 15, Class 10 (standard duty application), Class 10 A, sub-class 2.

Different protection classes are defined for the starting capacities of the motor

— cold start without thermal fault (corresponding to a stabilized motor thermal state, motor switched off)

— warm start without thermal fault (corresponding to a stabilized motor thermal state, at nominal power)

The motor thermal protection function can be disabled.

After the motor has stopped or the soft start has been switched off, the thermal state is calculated even if the control circuit is not energized.

The ATS48 soft start’s thermal control prevents the motor from restarting if the temperature rise is too high. If special motors are used which do not have thermal protection, provide external thermal protection via probes or thermal overload relays.

The soft start is factory preset to Class 10.

The tripping curves are based on the relationship between the starting current

Is and the (adjustable) nominal motor current In.

t(s)

10000

1000

Trip time (cold)

Trip time for a standard duty application (class 10)

Is = 3 In

46 s

Is = 4 In

23 s

Is = 5 In

15 s

Trip time (warm)

Trip time for a standard duty application (class 10)

Is = 3 In

23 s

Is = 4 In

12 s

Is = 5 In

7.5 s

Trip time for a severe duty application (class 20)

Is = 3.5 In

63 s

Is = 4 In

48 s

Is = 5 In

29 s

Trip time for a severe duty application (class 20)

Is = 3.5 In

32 s

Is = 4 In

25 s

Is = 5 In

15 s

100

10

1

0.5

1.12

2.00

3.00

4.00

5.00

6.00

7.00

Motor thermal protection curves (warm)

30

25

20

15

10

• Reset motor thermal state

Activating the function resets the motor thermal state calculated by the soft start to zero.

• Motor thermal protection with PTC

(1)

probes

PTC probes are integrated into the soft start, thus avoiding the necessity of an external thermal protection device. The “PTC probe thermal overshoot” fault opr alarm can be indicated using a configurable logic output or displayed via the serial link. The function can be disabled.

Note: The PTC probe protection and calculated motor thermal protection functions are independent and can be active simultaneously.

10A

2

8.00

Id/In

• Soft start ventilation

The cooling fan on the soft start is switched on as soon as the heatsink temperature reaches 50 °C (122 °F). It is switched off when the temperature returns to 40 °C (104 °F).

Soft Start Thermal Protection

The soft start is protected against thermal overloads by an analog thermal probe.

(1)

PTC: Positive Temperature Coefficient

Functions

©


27

4/04



Functions

Protection Functions (continued)

T

(Tn) 100 %

LUL + 10 %

LUL

20 %

I

300 %

LOC

LOC -10 % t < tUL

Motor underload detection (ULL)

50 % t < tOL

Motor overcurrent detection (OIL) tOL tUL

OIL t

Configuring the starter overload and underload with

PowerSuite on a PC

ULL t

• Motor underload protection

The soft start detects a motor underload if the motor torque falls below a preset torque threshold (LUL) for a specific (adjustable) period of time (tUL).

The motor underload threshold can be set between 20% and 100% of the nominal motor torque. The permissible underload duration can be set between

1 and 60 s. The detection function can trigger an alarm or a fault. The detection function can be disabled. The “motor underload detected” alarm can be indicated by a configurable logic output or displayed via the serial link. The

“motor underload detected” fault (ULF) locks the soft start and can be displayed via the serial link.

• Excessive acceleration time protection

This protection function can be used to detect a start which takes place in adverse conditions. Examples of such conditions include a locked rotor or a motor unable to reach its nominal rotation speed. If the start duration is longer than the set value (between 10 and 999 s), the soft start enters fault mode. The function can be disabled.

• Current overload protection

The soft start detects a current overload if the motor current exceeds a preset overcurrent threshold (LOC) for a specific (adjustable) period of time (tOL). The overcurrent threshold can be set between 50% and 300% of the nominal motor current. The permissible overcurrent duration can be set between 0.1 and 60 s.

This function is only active in steady state. The detection function can trigger an alarm or a fault. It can also be disabled. The “current overload detected” alarm can be indicated by a configurable logic output or displayed via the serial link.

The “current overload detected” fault (OLC) locks the soft start and can be displayed via the serial link.

• Protection against line phase inversion

This function can be used to detect the direction of rotation of the motor phases and, if it is enabled, to indicate a fault when the direction of rotation is reversed.

• Time before restarting

This function can be used to avoid several consecutive starts which may cause

— thermal overheating of the application

— a thermal fault, which may require maintenance work

— overcurrents (if the direction of rotation is reversed) or repeats (run/stop commands)

After a stop command, the motor can only restart after the preset time delay has elapsed. The motor is restarted when the time delay has elapsed if a run command is still valid or if a new run command is sent.

Adjustment range: 0 to 999 s.

• Motor phase loss detection

The function is used to adjust the sensitivity of the protection function to detect a loss of current or a low current in one of the three motor phases for at least

0.5 s or in all three motor phases for at least 0.2 s. The value of the minimum current level can be set between 5% and 10% of the soft start nominal current.

• Automatic restart

This function permits up to six restart attempts after locking on a fault at intervals of 60 s if the cause of the fault has been removed and if the run commands are still present. After the sixth attempt, the soft start remains locked and the fault must be reset before a restart is permitted.

If the function is active, the fault relay remains activated if line phase loss, motor phase loss, or line frequency out of tolerance faults are detected. This function can only be used in 2-wire control.

Functions

28

©


4/04


T

100 %

Vn

T

DOL

50 %

Vn

100 ms

Application of a voltage boost equal to 100% of the nominal motor voltage t


Functions

Advanced Adjustment Functions

• Torque limit

Designed primarily for high inertia and constant torque conveyor applications, this function restricts the torque ramp reference to the preset value.

For example, the function can be used to limit the torque to a constant value throughout the starting period.

Adjustment range: 10% to 200% of the nominal motor torque.

• Voltage boost level

This function can be used to avoid any “starting” torque (phenomenon caused by friction on stopping or by mechanical play). When a run command is sent, the soft start applies a fixed voltage to the motor for a limited period of time before starting. The function can be disabled. The voltage setting value varies between

50% and 100% of the nominal motor voltage.

• Test on low power motor

This function can be used to test a starter on a motor whose power is much lower that of the soft start. It can be used, for example, to check the electrical wiring of a device. The function is automatically cancelled when the soft start is switched off.

The next time the soft start is switched on, the soft start returns to its initial configuration.

• Activation of the cascade function

This function can be used to start and decelerate several cascaded motors with a single soft start. In order to gain maximum benefit from torque control, it is advisable to use motors with powers between 0.5 and 1 times the power of the soft start.

• Line frequency

The following frequencies can be selected for this function:

— 50 Hz. The frequency fault monitoring tolerance is ± 20%.

— 60 Hz. The frequency fault monitoring tolerance is ± 20%.

— Automatic detection of the line frequency by the soft start.

The frequency fault monitoring tolerance is ± 6%.

— 50 Hz and 60 Hz are recommended if the power supply is provided by a emergency standby generator set, given their high tolerance.

• Reset kWh or the operating time

Sets the value of the power in kW/h or the operating time value to 0. The calculation of the values is updated once the reset command has been sent.

• Return to factory settings

This function can be used to reset each setting to its initial value (soft start factory setting, see page 25).

2

nd

Motor Adjustment Functions

In order to access the 2nd motor adjustment functions, one logic input must be assigned to the second set of motor parameters function. The adjustment functions and ranges are identical for both sets of motor parameters.

The settings are as follows (see page 26):

— Nominal motor current

— Limiting current

— Acceleration ramp time

— Initial starting torque

— Deceleration ramp time

— Threshold for changing to freewheel stop mode at the end of deceleration

— Maximum torque limit

Functions

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Functions

Displaying the commands and settings with

PowerSuite on PC

Communication Functions

The ATS48 soft start is supplied with an RS-485 multidrop serial link with Modbus

® systems protocol as standard. The serial link is configured in the Communication menu using:

• The address of the soft start (0 to 31)

• The communication speed (4800, 9600, or 19200 bps)

• The format of the communication data. The following formats can be selected:

— 8 data bits, odd parity, 1 stop bit

— 8 data bits, even parity, 1 stop bit

— 8 data bits, no parity, 1 stop bit

— 8 data bits, no parity, 2 stop bits

• The time-out (1 to 60 s)

PowerSuite Advanced Dialog Solutions

The PowerSuite advanced dialog solutions (see page 15) offer the following advantages:

• Connection to the ATS48 soft start and access to the adjustment, monitoring, and control functions

• Display of messages in plain text in 5 languages (English, French, German,

Spanish, and Italian)

• Preparation and saving of settings to hard disk

• Comparison and editing of settings using office automation tools

• Downloading of soft start settings to the PC and uploading from the PC to the soft start

Application Monitoring Functions

The monitoring functions provide the following information:

• Power factor, displayed between 0.00 and 1.00

• Motor thermal state: 100% corresponds to the thermal state of the motor consuming the set nominal current

• Motor current: displayed in amperes between 0 and 999 A and in kA between

1000 and 9999 A

• The operating time corresponding to the total number of soft start operating hours during heating, acceleration, steady state, deceleration, braking, and continuous bypass operation. It is displayed in hours between 0 and 999 hours and in kilo hours between 1000 and 65536 hours.The active power is displayed between 0 and 255%, where 100% corresponds to the power at the set nominal current and at full voltage.

• The motor torque is displayed between 0 and 255%, where 100% corresponds to the nominal torque.

• The active power consumed is displayed in kW. The line voltage value must be configured. The accuracy of this setting depends on the error between the voltage configured and the actual voltage.

• Energy in kWh displayed with PowerSuite

Monitoring the parameters with

PowerSuite on PPC

Functions

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Functions

• The following soft start states are shown in the display of the current state:

— Soft start without a run command and with no power supplied

— Soft start without a run command and with power supplied

— Acceleration/deceleration in progress

— Steady state operation

— Braking in progress

— Soft start in current limiting mode

— Starting time delay not elapsed

• Last fault

• Phase rotation direction. Displays the direction of rotation (direct or indirect).

• Keypad display locking code

— An access code can be used to protect access to the soft start’s adjustment and configuration parameters. Only the monitoring parameters are accessible when the adjustment and configuration parameters are locked out.

Logic input Application Functions

The soft start has 4 logic inputs:

• 2 logic inputs (RUN and STOP) are reserved for run/stop commands which can be sent in the form of maintained contacts or as pulsed contacts.

— 2-wire control: Starting and stopping are controlled by a single logic input.

State 1 of the logic input controls starting and state 0 controls stopping.

— 3-wire control: Starting and stopping are controlled by 2 separate logic inputs. A stop is obtained on opening (state 0) the STOP input. The pulse on the RUN input is stored until the stop input opens.

• 2 logic inputs (LI3 and LI4) can be configured with the following functions:

— Freewheel stop: When combined with a braked stop or decelerated stop command, activating the logic input will stop the motor in freewheel mode.

— External fault: Enables the soft start to detect an external, customerdefined fault (such as level or pressure). When the contact is open, the soft start enters fault mode.

— Force to local control mode: When the soft start is connected to a serial link, this function can be used to change from line mode (control via serial link) to local mode (control via the keypad display).

— Reset motor thermal fault: Enables the motor thermal fault to be reset remotely.

— Activation of the cascade function: With this function active, motor thermal protection is disabled and relay R1 is configured as the fault isolation relay. This function can be used to start and decelerate several motors one after the other with a single soft start.

— Reset all faults: Enables all faults to be reset remotely.

— Second set of motor parameters: Enables a second set of parameters to be selected to start and decelerate two different motors with a single soft start.

Functions

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Conventional Starting of Three-Phase Asynchronous Motors

Logic Output Application Functions

The soft start has 2 logic outputs (LO1 and LO2) which, depending on their configuration, can be used for remote indication of the following states or events:

• Motor thermal alarm: The motor thermal state has exceeded the alarm threshold. This alarm can be used, for example, to avoid starting a motor if the thermal reserve is insufficient.

• Motor underload alarm: The motor torque is lower than the set threshold.

• Motor PTC probe alarm: The thermal state monitored by the PTC motor probe has been exceeded.

• Motor powered: Indicates that there may be current in the motor.

• Motor overcurrent alarm: The motor current is higher than the set threshold.

• Second set of motor parameters activated

Relay and Analog Output Application Functions

The soft start has 3 relays, 2 of which are configurable.

• End of starting relay R2: Cannot be configured.

The end of starting relay controls the bypass contactor on the soft start. It is activated when the motor completes the starting phase. It is deactivated when a stop command is sent and in the event of a fault. The soft start regains control when a braking or deceleration command is sent.

• Relay R1 application functions

Relay R1 can be configured as follows:

— Fault relay: Relay R1 is activated when the soft start is powered and there are no faults. It is deactivated when a fault occurs and the motor switches to freewheel mode.

— Isolating relay: The contact of relay R1 closes when a run command is sent and re-opens when a stop command is sent, at the end of deceleration on a decelerated stop or in the event of a fault.

The line contactor is deactivated and the motor is isolated from the line supply.

• Relay R3 application functions

Relay R3 is configured to indicate the same states or events as logic outputs LO1 or LO2 (see page 32).

• Analog current output AO application function:

— Analog output AO provides an image of the following values: motor current, motor torque, motor thermal state, power factor, active power.

— The following settings are associated with the analog output:

• The type of signal supplied: 0-20 mA or 4-20 mA

• The scale setting of the signal. The function associates the maximum amplitude of the analog output (20 mA) with a percentage of the nominal value of the parameter, which can be set between 50% and 500%.

Function Compatibility Table

Functions

Decelerating stop

INTELE

™

braking stop

Forced freewheel stop

Thermal protection

Motor phase loss detection Y

Tests on low power motor Y

Cascaded motors

Y

Y

Y

Decelerating stop

INTELE

™ braking stop

N/A

N

N

N/A

Y

Y

Y

Y

Y

Forced freewheel stop

Y

Y

Y

Y

N/A

Y

N

Thermal protection

Y

Y

Y

N/A

N/A

Y

N

Motor phase loss detection

Y

Y

Y

N/A

N/A

Y

N/A

Tests on low power motor

Y

Y

Y

Y

Y

N/A

N

Cascaded motors

Y

Y

N

N

N/A

N

N/A

Y - Compatible functions N - Incompatible functions N/A - Not applicable

Conventional Star ting of Three-Phase Asynchronous Motors

Conventional Star ting of Three-Phase Asynchronous Motors

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Conventional Starting Curves

Direct starting

2

1

4

3

6

I/In

5

0

0 0.25 0.5

0.75

1

Motor speed

Starting current

Wye Delta starting

3

T/Tn

2.5

2

1.5

1

(1)

0.5

0

0 0.25 0.5

0.75

1

Motor speed

Starting torque

6

I/In

3

T/Tn

(2)

5

2.5

4

2

(2)

3

1.5

2

1

(1)

1

0.5

0

0 0.25 0.5

0.75

1

Motor speed

Starting current

Primary resistor starting

0

0 0.25

0.5 0.75

1

Motor speed

Starting torque

6

I/In

3

T/Tn

(2)

5

4

2.5

2

(2)

3 1.5

2 1

(1)

1 0.5

0

0 0.25 0.5

0.75

1

Motor speed

Starting current

Autotransformer starting

0

0 0.25

0.5

0.75

1

Motor speed

Starting torque

2

1

6

I/In

5

4

3

(2)

0

0 0.25 0.5

0.75

1

Motor speed

Starting current

3

T/Tn

2.5

2

1.5

(2)

1

(1)

0.5

0

0 0.25 0.5

0.75

1

Motor speed

Starting torque

• Starting current: 4 to 8 times the nominal current

• Starting torque: 0.5 to 1.5 times the nominal torque

• Characteristics:

— Motor with 3 terminals, low and medium power

— On-load starting

— High current peak and voltage drop

— Simple device

— Sudden starting for the mechanism

• No parameter adjustment

(1) Load torque

• Starting current: 1.8 to 2.6 times the nominal current

• Starting torque: 0.5 times the nominal torque


— Motor with 6 terminals

— No-load or low resistive torque starting

— High current peaks and torque when changing to “Wye Delta” mode

— A device requiring maintenance

— Subject to mechanical stress when starting


(1) Load torque

(2) Direct Starting

• Starting current: 4.5 times the nominal current



— Motor with 3 terminals, high power

— Starting with increasing resistive torque

— High current peak

— A large, bulky device requiring maintenance



(1) Load torque


• Starting current: 1.7 to 4 times the nominal current



— Motor with 3 terminals, high power

— Large voltage drop and current peak when connected at full voltage

— A complex, bulky device requiring maintenance



(1) Load torque


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Conventional Starting Curves

Conventional Electronic Starting With Voltage Ramp And Current Limit

• A soft start with 6 thyristors connected head-to-tail in each line phase is used to power the three-phase asynchronous motor by gradually increasing the voltage on start-up.

M

3

Schematic diagram

— Depending on the firing time and angle of the thyristors, it can be used to supply a voltage which will gradually increase at a fixed frequency.

— The gradual increase in the output voltage can either be controlled by the acceleration ramp, or by the value of the limiting current, or linked to both parameters.

α

α

Firing angle

Is

T

• Figure 1 shows the behavior of the torque in relation to the starting current.

Limiting the starting current Is to a preset value Is1 will reduce the starting torque Ts1 to a value which is almost equal to the ratio of the square of currents Is and Is1.

Example

Is1

Ts

V

0.85 V

On a motor with the following characteristics: Ts = 2 Tn for Is = 6In, current limiting at Is1= 3 In or 0.5 Is results in a starting torque: Ts1 = Ts x (0.5)2 = 2

Tn x 0.25 = 0.5 Tn. (Tn is motor rated torque; In is motor rated current.)

(1) (1)

Ts1

0

0 0.25

0.5

0.75

1

Motor speed

0.6 V

0

0 0.25

0.5

0.75

1

Motor speed

• Figure 2 shows the torque/speed characteristic of a squirrel cage motor in relation to the supply voltage. The torque varies like the square of the voltage at a fixed frequency. The gradual increase in the voltage prevents the instantaneous current peak on power-up.

Figure 1 Figure 2

Advantages of Starting with the ATS48 Soft Start

(1) Load torque

• Conventional electronic starting

To rectify problems caused by:

— Mechanical stress when starting

— Hydraulic transients during acceleration and deceleration in pump applications

Conventional electronic starting requires the use of several current limits or the switching of several voltage ramps.

The settings become complicated and must be modified every time the load changes.

• Starting with the ATS48 Soft Start

The ATS48 soft start’s torque control enables starting without mechanical stress and the smooth control of hydraulic transients with a single acceleration ramp. The settings are simple and effective, whatever the load.

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Schneider Electric USA

8001 Highway 64 East

Knightdale, NC 27545

1-888-SquareD

(1-888-778-2733) www.us.SquareD.com

Schneider Electric Canada

19 Waterman Avenue,

M4B 1 Y2

Toronto, Ontario

1-800-565-6699 www.schneider-electric.ca

Catalog No. 8636CT0201R3/04 March 2004 © 2004 Schneider Electric All Rights Reserved

Replaces 8636CT0201 dated 06/02.


Schneider Electric | LUFP7 | User manual | Altistart 48 Panel-Mount Soft Starts

Catalog

Altistart 48

Panel-Mount Soft Starts

File 8636

AC Line Supply

Motor

Applications

Functions

Options

TORQUE CHARACTERISTICS

STARTING CURRENT

STARTING TORQUE

CONVENTIONAL STARTING USING CURRENT LIMITATION OR VOLTAGE RAMP

STARTING WITH THE ATS48 SOFT START

STOPPING WITH THE ATS48 SOFT START

SELECTION CRITERIA FOR AN ATS48 SOFT START UNIT

Standard Duty Application

Severe Duty Application

Selecting the Soft Start

APPLICATION TYPES

SPECIAL USES

Shorting/Bypass Contactor

Multi Motors

Brush Motor

2-Speed Motor

Long Motor Cable Lengths

Miscellaneous Application Precautions

COMMUNICATION

Line Voltage 208 to 690 V, Motor Power in HP

For Standard Duty Applications

For Severe Duty Applications

Line Voltage 208 to 690 V, Motor Power in kW

For Standard Duty Applications

For Severe Duty Applications

REMOTE KEYPAD DISPLAY

PROTECTIVE COVERS FOR POWER TERMINALS

PowerSuite Pocket PC

PowerSuite Software for PC

POWERSUITE Products Available from Schneider Electric

Magelis

Display Unit With Matrix Screen

MOUNTING THE REMOTE KEYPAD DISPLAY

A

MOUNTING RECOMMENDATIONS

MOUNTING IN A METAL WALL-MOUNTED OR FLOOR-STANDING ENCLOSURE

WITH DEGREE OF PROTECTION TYPE 1 (IP 23) OR TYPE 12 (IP 54)

Fan Flow Rate Depending On The Soft Start Rating

Calculating Enclosure Size

Description of Logic for Recommended Wiring Diagrams

Suggested Components for Standard Duty Applications

Additional Suggested Components for Standard Duty Applications

Summary of Functions

Soft Start Factory Setting

Adjustment Functions

— Freewheel motor stop

braking

Protection Functions

probes

Soft Start Thermal Protection

Protection Functions (continued)

Advanced Adjustment Functions

2

Motor Adjustment Functions

Communication Functions

PowerSuite Advanced Dialog Solutions

Application Monitoring Functions

Logic input Application Functions

Logic Output Application Functions

Relay and Analog Output Application Functions

Function Compatibility Table

Direct starting

Wye Delta starting

Primary resistor starting

Autotransformer starting

Conventional Electronic Starting With Voltage Ramp And Current Limit

Example

Advantages of Starting with the ATS48 Soft Start

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