Settings; Power-Up - SymCom MOTORSAVER 460 Installation Instructions

SETTINGS

1. LINE VOLTAGE ADJUSTMENT: Rotate the LINE VOLTAGE
ADJUSTMENT to the nominal three-phase line voltage
feeding the motor to be protected. The Model 460 will
automatically sense whether it is connected to a 200V or
400V 60 Hz or 380V - 416V 50Hz power system.
2. RESTART delay: Rotate the RESTART delay to the
desired position. The restart delay is the time between the
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MOTORSAVER
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MOTORSAVER
applications, the restart delay should be set for the
approximate time it takes for the head pressure to bleed
off of the compressor. For other applications, the restart
delay is typically set at 2 seconds.
(NOTE: This delay is also the minimum cycle time or rapid
cycle timer for the motor or compressor when control power
is lost such as the operation of a Thermostat.)
3. UNBALANCE TRIP: Rotate the UNBALANCE TRIP to the
desired voltage unbalance trip level. The NEMA MG1
standard does not recommend operating a motor above a
1% voltage unbalance as determined by the following formula
without derating the motor.
% Voltage Unbalance = [(Maximum Deviation from the Average) / Average] x 100%
The NEMA MG1 standard also recommends against operating a motor above a 5% voltage unbalance
under any circumstances. Therefore, a 5% setting on "UB" is a good place to start but SymCom
recommends consulting the motor manufacturer for specific tolerances.
4. TRIP DELAY ADJUSTMENT: Rotate the TRIP DELAY ADJUSTMENT to the desired setting.
The adjustment does not affect the trip delay on a single-phasing fault. Typically, the TRIP DELAY
ADJUSTMENT is set to 4 seconds. In areas where voltage fluctuations are frequent, the TRIP DELAY
ADJUSTMENT may be set between 10 and 20 seconds.

POWER-UP

Turn on the power to the motor. The green RUN LIGHT will blink during the RESTART delay.
After the RESTART delay, the MOTORSAVER
LIGHT will light. If the contacts do not energize and the RUN LIGHT does not light, then see the
TROUBLESHOOTING section.
CONGRATULATIONS!!! YOU HAVE JUST INSTALLED
08/02
seeing acceptable power and the
closing its output contacts. For compressor
THE FINEST MOTOR PROTECTION AVAILABLE!
HAVE QUESTIONS? CALL 1-800-843-8848
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will energize its output contacts and the green RUN
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