Symcom 460-SP Installation Guide
INSTALLATION INSTRUCTIONS
FOR SYMCOM’S MOTORSAVER
MODEL 460-SP
BE SURE POWER IS DISCONNECTED PRIOR TO INSTALLATION!
FOLLOW NATIONAL, STATE, AND LOCAL CODES!
READ THESE INSTRUCTIONS ENTIRELY BEFORE INSTALLATION!
The Model 460-SP MotorSaver is a voltage monitor designed to protect
single-phase motors regardless of size. The MotorSaver is used on 190240 (95-120) VAC, 50 to 60 Hz motors to protect from damage caused by low
voltage and high voltage.
CONNECTIONS
1. Mount the MotorSaver in a convenient location in or near the motor
control panel. If the location is wet or dusty, the MotorSaver should
be mounted in a NEMA 4 or 12 enclosure. The MotorSaver can be
mounted to a back panel using two #6 or #8 x 5/8 screws or can be
snapped onto a DIN rail.
2. Connect L1 and L2 on the MotorSaver’s terminal strip to the LINE SIDE
of the motor starter (See Figure 1).
3. Connect the output relay to the circuitry to be controlled. For motor control,
connect the normally open contact in series with the magnetic coil of the
motor starter (See Figure 1). For alarm operation, connect the
normally closed contact in series with the control circuit (See Figure 2).
2880 North Plaza Drive, Rapid City, SD 57702 • (800) 843-8848
1-Phase V
oltage
CONTROL VOLTAGE
24-240 VAC
460-SP
LIGHT
3-Phase V
oltage
CONTROL VOLTAGE
24-240 VAC
460-SP
FIGURE 1: CONTROL WIRING DIAGRAM
08/04/04 -2-
FIGURE 2: ALARM WIRING DIAGRAM
SETTINGS
100
5001
VOLTAGE ADJ. (VAC) RESTART (SEC)
MODEL 460-SP
220
23
0
20 25
0
24
0
20
0
19
0
20
8
LED STATUS
RUN
RESTART DELAY
HIGH / LOW VOLTAGE
GREEN
GREEN
RED
21
4
5
6
1. Line voltage adjustment: Rotate the “VOLTAGE ADJ. (VAC)” to the nominal
line voltage feeding the motor to be protected.
2. Restart delay adjustment: Rotate the “RESTART (SEC)” adjustment to the
desired position. The restart delay is the time between the MotorSaver®
seeing acceptable voltage and the MotorSaver® closing its output contacts.
For compressor 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 between
2 and 10 seconds.
-3- 08/04/04
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