SAF OPAL LT User Manual

Installation & Operating Procedures

Opal LT

Series

RVS-AX Analogue Soft Starter

8-170A, 220V-600V

Manufactured By SOLCON

Supplied By

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Table of Contents

Page Subject

3 Starter Selection
4 Installation Notes
5 Wiring
6 Starter Settings
7 Motor Protection
8 Start-up Procedure
9 Technical Specification
10 Dimensions

Safety

• Read this manual carefully before operating the equipment and follow its instructions.

• Installation, operation and maintenance should be in strict accordance with this

manual, national codes and good practice. Installation or operation not performed in
strict accordance with these instructions will void manufacturer's warranty.

• Disconnect all power inputs before servicing the soft-starter and/or the motor.

• After installation, check and verify that no parts (bolts, washers, etc) have fallen into

the starter.

Attention

1. This product was designed and tested for compliance with IEC947-4-2 for class A equipment.

2. Use of the product in domestic environments may cause radio interference, in which case the user may

be required to employ additional mitigation methods.

3. Utilization category is AC-53a or AC53b. Form1.

4. For further information, see Technical Specification.

Warnings

• Internal components and P.C.B's are at Mains potential when the RVS-AX is

connected to mains. This voltage is extremely dangerous and may cause death or
severe injury if contacted.

• When RVS-AX is connected to Mains, even if start signal has not been issued, full

voltage may appear on motor's terminals. Therefore, for isolation purposes it is
required to connect an isolating device (C/B, switch, line contactor, etc) upstream to
the RVS-AX.

• Starter must be properly grounded to ensure correct operation and safety.

• Check that Power Factor capacitors are not connected to the output side of the soft

starter

The company reserves the right to make any improvements or modifications to its products without prior notice.

2

Starter Selection

The RVS-AX electronic soft starter incorporates six
thyristors to start a three-phase squirrel cage induction
motor. By supplying a slowly increasing voltage, it
provides soft start and smooth stepless acceleration,
while drawing the minimum current necessary to start
the motor.

A Soft Stop feature can be enabled when the Ramp­Down potentiometer is adjusted. When used, upon stop
signal (open contact terminals 1 and 2), motor's voltage
is slowly reduced to zero.

Soft-Start Characteristics

I%U%

100

50

10

400

100

CurrentVoltage

Soft-Stop Characteristics

100

U%

The Soft-Stop characteristic
may be used for controlled

50

deceleration of pumps and high
friction loads.

10

Voltage

RVS-AX ratings and Frame sizes

Max. Motor
FLA (Amp)

Starter Type
FLC (Amp.)

8 RVS-AX 8
17 RVS-AX 17
31 RVS-AX 31
44 RVS-AX 44
58 RVS-AX 58
72 RVS-AX 72
85 RVS-AX 85

105 RVS-AX 105
145 RVS-AX 145
170 RVS-AX 170

Dimensions (mm) & Weights (Kg)

Size Width Height Depth Weights (Kg)

A1 120 232 105
A2 129 275 185
A3 129 380 185
A4 172 380 195

M%

100

Torque

Frame Size

(Aluminum)

A1

A2

A3

A4

2.6
5

8.4

11.8

The starter should be selected in accordance with the
following criteria:

1. Motor Current & Starting Conditions

Select the starter according to motor's Full Load
Ampere (FLA) - as indicated on its nameplate (even if
the motor will not be fully loaded).
The RVS-AX is designed to operate under the
following maximum conditions:

Ambient

Temp.

40° C

I start Acc. Time

300% In 30 Sec
350% In 20 Sec
400% In 5 Sec

Max. Starts per Hour: four (4) starts per hour at

maximum ratings and up to 10
starts per hour at light load
applications (consult factory).

: For very frequent starts (inching applications)

Note

the inching current should be considered as the
Full Load Current (FLC) – consult factory.

2. Mains Voltage

Each starter is factory set for one of the following
levels according to the Ordering Information.

Voltage Tolerance

380 - 415 V +10 -15 %

440 V +10 -15 %

460 - 500 V * +10 -15 %

575 - 600 V +10 -15 %

Frequency: 50 / 60 Hz.

* Starter’s rated 460-500VAC can be field modified

for system voltage of 220-240V, by placing the
internal Jumper J3 as shown below.

220 to 240V 460 to 500V

WVU

123

J3

123123

3