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BE SURE POWER IS DISCONNECTED PRIOR TO INSTALLATION!
FOLLOW NATIONAL, STATE AND LOCAL CODES.
READ THESE INSTRUCTIONS ENTIRELY BEFORE INSTALLATION.
The Model 460-VBM MotorSaver
motors—regardless of size. It can be used on 190–480VAC, 50/60Hz motors to protect from
damage caused by single-phasing, low voltage, high voltage, phase reversal, and voltage
unbalance.
The Model 460-VBM (Voltage Band Monitor) has low and high voltage adjustment knobs and will
only permit motor operation if the voltage is within these limits.
CONNECTIONS
1.
Mount the MotorSaver
location is wet or dusty, the MotorSaver
®
MotorSaver
can be mounted to a back panel using two #6 or #8 x 5/8 screws or can be
snapped onto DIN rail.
2.
Connect L1, L2 and L3 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 as shown in Figure 1.
For alarm operation, connect the normally closed contact in series with the control circuit as in
Figure 2.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
INSTALLATION INSTRUCTIONS FOR
SYMCOM'S MOTORSAVER
®
is an auto-ranging voltage monitor designed to protect 3-phase
®
in a convenient location in or near the motor control panel. If the
®
should be mounted in a NEMA 4 or 12 enclosure. The
MODEL 460-VBM
®
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Summary of Contents for Motor Saver SymCom 460-VBM
- Page 1 INSTALLATION INSTRUCTIONS FOR ® SYMCOM’S MOTORSAVER MODEL 460-VBM BE SURE POWER IS DISCONNECTED PRIOR TO INSTALLATION! FOLLOW NATIONAL, STATE AND LOCAL CODES. READ THESE INSTRUCTIONS ENTIRELY BEFORE INSTALLATION. ® The Model 460-VBM MotorSaver is an auto-ranging voltage monitor designed to protect 3-phase motors—regardless of size.
- Page 2 Figure 1. Motor Control Wiring Diagram LIGHT Figure 2. Alarm Control Wiring Diagram Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com...
- Page 3 SETTINGS LOW VOLTAGE ADJUSTMENT: Rotate the LOW VOLTAGE ADJ. (VAC) to the desired low voltage setting. If any of the three phases drops ® below this setting, the MotorSaver will open its relay contacts after the preset trip delay. HIGH VOLTAGE ADJUSTMENT: Rotate the HIGH VOLTAGE ADJ.
- Page 4 POWER-UP Turn on the 3-phase 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 light will illuminate. If the contacts do not energize and the RUN light does not illuminate, see the TROUBLESHOOTING section.
- Page 5 TROUBLESHOOTING LIGHT SYMPTOM SOLUTION PATTERN Measure the three line-to-line voltages. If any of the ® voltages is below 150VAC, the MotorSaver does not No lights are on— have enough power to operate its internal electronics— the unit seems this may occur on a single-phased system. If the completely dead voltages are correct, call SymCom at (800) 843-8848 or (605) 348-5580.
- Page 6 ® MOTORSAVER 460-VBM SPECIFICATIONS 3-Phase Line Voltage 190–480VAC (nominal) 50*/60Hz Frequency Low Voltage (adjustable trip point) Trip 185–480VAC (adjustable) Reset Trip setting plus 3% High Voltage (adjustable) Trip 208-528VAC (adjustable) Reset Trip setting minus 3% Voltage Unbalance (NEMA) Trip Reset Trip Delay Time Low, High and Voltage Unbalance 1–30 seconds (adjustable)
- Page 7 DIMENSIONS SymCom, Inc. warrants its microcontroller-based products against defects in material or workmanship for a period of five (5) years from the date of manufacture. All other products manufactured by SymCom shall be warranted against defects in material or workmanship for a period of two (2) years from the date of manufacture.
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