SAF OPAL SS6 - Manual (Page 8)

OPAL SS6 Reduced Voltage Starters
Page 1
1.0 DESCRIPTION
1.1 OVERVIEW
The OPAL series is a line of solid state reduced voltage starters for use with 3ø induction
motors. This series also includes various optional features that can be easily appended.
A solid state starter provides a step-less, thus smooth current ramp to the motor. This
characteristic eliminates current surges and mechanical torque transients. Since these units
are solid state, we now eliminate the maintenance of moving contacts which are involved in
almost any other method of starting an AC induction motor.
1.1.1 STANDARD FEATURES
- 200-600 VAC 3ø Universal voltage, 50/60Hz with no adjustments
- Single controller card throughout the OPAL range
- Current regulated, closed loop
- Dual operation modes to match any application:
 Constant Current mode for light loads or limited power supplies
 Current Ramp mode for high inertia or heavy loads
- LED and NEON status and diagnostics
- Prevents starting with any phase missing
- Phase rotation insensitive
- Instantaneous electronic over-current trip
- Class 20 electronic motor overload
- Overload capacity:
 500 % for 35 seconds
 115 % continuous
- Form C dry fault contact
- N/O dry run contact
- Simple user set-up and current calibration by rotary switch
- Two or three wire control