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.
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POWER-UP
Turn on the power to the motor. The MotorSaver’s green RUN light will blink
during the RESTART delay. After the RESTART delay, the MotorSaver® will
energize its output contacts and the green RUN light will illuminate. If the
contacts do not energize and the RUN light does not illuminate, see the
TROUBLESHOOTING section.
DIAGNOSTIC INDICATOR LIGHTS
RUN
RESTART DELAY
HIGH / LOW VOLTAGE
CONGRATULATIONS!!
YOU HAVE JUST INSTALLED THE FINEST
MOTOR PROTECTION AVAILABLE!!
08/04/04 -4-
TROUBLESHOOTING
SYMPTOM
No lights are on.
The unit seems
completely dead.
Red light is on
steady.
Green light blinks
and motor is not
running.
Green light is on
steady, but motor
does not start.
LIGHT
PATTERN
N / A
SOLUTION
Measure the voltage. If the voltage is below
75 VAC, the MotorSaver does not have
enough power to operate its internal electronics.
If the voltage is correct, call SymCom at
1-800-843-8848 or 1-605-348-5580.
The voltage is out of tolerance. Measure
the input voltage. If the voltage is 7% above
or below the nominal voltage as selected
by the LINE VOLTAGE ADJUST, the
MotorSaver is functioning properly. If the
voltage is within ±7% of the selected line
voltage, call SymCom at
1-800-843-8848 or 1-605-348-5580.
The MotorSaver is in restart delay.
The MotorSaver is in run mode. Ensure
other control devices are allowing the
motor to start. Check control circuit for
loose wires or malfunctioning switches.
Any questions or comments call SymCom at 1-800-843-8848 or
1-605-348-5580
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SPECIFICATIONS
1 - Phase Line Voltage 190 - 240 (95-120) VAC
Frequency 50* - 60 Hz
High Voltage (% of setpoint)
Trip 110% ±1%
Reset 107% ±1%
Low Voltage (% of setpoint)
Trip 90% ±1%
Reset 93% ±1%
Trip Delay Time
Low Voltage 4 Seconds Fixed
High Voltage 4 Seconds Fixed
Restart Delay Time
After a complete power loss 1-500 Seconds Adjustable
Output Contact Rating - SPDT
Pilot Duty 480 VA @ 240 VAC
General Purpose 10 A @ 240 VAC
Power Consumption 6 Watts (maximum)
Weight 14 oz
Enclosure Polycarbonate
Terminal
Torque 6 Inch-Pounds
Wire AWG 12 - 20 AWG
Safety Marks
UL UL508 (File # E68520)
CE IEC 60947-6-2
Standards Passed
Electrostatic Discharge (ESD)
IEC 1000-4-2, Level 3, 6 kv contact,
8 kv air
Radio Frequency Immunity, Radiated 159 MHz, 10 V/m
Fast Transient Burst
IEC 1000-4-4, Level 3, 3.5 kv input
power and controls
*NOTE: 50 Hz will increase all delay timers by 20%
08/04/04 -6-
Surge
2.350
IEC
ANSI / IEEE
Hi-potential Test
IEC 1000-4-5, Level 3, 4kv line-to-line;
Level 4, 4kv line-to-ground
C62.41 Surge and Ring Wave Compliance
to a level of 6kv line-to-line
Meets UL508 (2 x rated V +1000V for 1
minute)
Environmental
Temperature Range
Ambient Operating: -20° - 70° C (-4° - 158°F)
Ambient Storage: -40° - 80° C (-40° - 176°F)
Class of Protection IP20, NEMA 1 (Finger Safe)
Relative Humidity 10-95%, non-condensing per IEC 68-2-3
DIMENSIONS
SymCom warrants its microcontroller based products against defects in material or workmanship
for a period of ve (5) years* from the date of manufacture. All other products manufactured by
SymCom shall be warranted against defects in material and workmanship for a period of two (2)
years from the date of manufacture. For complete information on warranty, liability, terms, and
conditions, please refer to the SymCom Terms and Conditions of Sale document.
-7- 08/04/04
Visit our website at www.symcominc.com for our
complete catalog and new product listings!
2880 North Plaza Drive, Rapid City, SD 57702
Phone: (800) 843-8848 or (605) 348-5580
FAX: (605) 348-5685
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