SymCom MOTORSAVER 460 User manual

BE SURE POWER IS DISCONNECTED PRIOR TO INSALLATION!
FOLLOW NATIONAL, STATE, AND LOCAL CODES!
READ THESE INSTRUCTIONS ENTIRELY
BEFORE
INSTALLATION!
INSTALLATION INSTRUCTIONS
FOR SYMCOM’S MOTORSAVER

MODEL 460
The Model 460 MotorSaver

is an auto ranging voltage monitor designed to
protect three-phase motors regardless of size. The MotorSaver

is used on
190-480 VAC, 50 to 60 Hz motors to protect from damage caused by single
phasing, low voltage, high voltage, phase reversal, and voltage unbalance.
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, L2 and L3 on the MotorSaver’s terminal strip to the LINE SIDE
of the motor starter. (See Figure No. 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 No. 1. For alarm operation, connect the
normally closed contact in series with the control circuit as shown in Figure
No. 2.

3-Phase Voltage
CONTROL VOLTAGE
24-240 VAC
FIGURE NO. 1: CONTROL WIRING DIAGRAM
LIGHT
3-Phase Voltage
CONTROL VOLTAGE
24-240 VAC
FIGURE NO. 2: ALARM WIRING DIAGRAM
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SETTINGS
1.
Line voltage adjustment: Rotate the
“VOLTAGE ADJ. (VAC)”
to the nominal
three-phase 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 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. Trip delay adjustment: Rotate the
“TRIP
DELAY (SEC)”
adjustment to the desired
setting. This adjustment does not affect the
trip delay on phasing faults. Typically, the
trip delay adjustment is set between 1 and 5
seconds. In areas where voltage  uctuations are frequent, the trip delay
adjustment may be set greater than 10 seconds.
4. Voltage unbalance adjustment: Rotate the
“UNBALANCE TRIP (NEMA%)”
adjustment to the desired unbalance trip level. The NEMA MG1 standard
does not recommend operating a motor above 1% voltage unbalance without
derating
derating
the motor. The NEMA MG1 standard also recommends against
operating a motor above a 5% voltage unbalance under any circumstances.
SymCom recommends consulting the motor manufacturer for speci c
tolerances.
MODEL 460
190
200
416 440
230
240
380 480
400 460
208 220
Percent Unbalance = Maximum Deviation from the Average
Average x 100
Example: The measured line-to-line voltages are 203, 210, and 212.
Average = 203 + 210 + 212
3= 208.3
The maximum deviation from the average is the largest difference
between the average voltage (208.3) and any one voltage reading.
208.3 - 203 = 5.3 210 - 208.3 = 1.7 212 - 208.3 = 3.7
The maximum deviation from the average is 5.3.
5.3
208.3 x 100 = 2.5% Unbalance
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CONGRATULATIONS!!
YOU HAVE JUST INSTALLED THE FINEST
MOTOR PROTECTION AVAILABLE!!
POWER-UP
Turn on the 3
∅
power to the motor. The MotorSaver’s green RUN light will blink
during the RESTART delay. After the RESTART delay, the MotorSaver
®
during the RESTART delay. After the RESTART delay, the MotorSaver® 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
REVERSE PHASE
UNBALANCE / SINGLE PHASE
HIGH / LOW VOLTAGE
RED
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TROUBLESHOOTING
SYMPTOM
LIGHT
PATTERN
SOLUTION
No lights are on.
The unit seems
completely dead.
N / A
Measure the three line-to-line voltages. If
any of the voltages are below 150 VAC, the
MotorSaver

does not have enough power
to operate its internal electronics. This
may occur on a single-phased system. If
the voltages are correct, call SymCom at
1-800-843-8848 or 1-605-348-5580.
Red light is
blinking (on initial
power up).
Turn off the three-phase power. Swap any
two leads powering the MotorSaver

(L1,
L2, or L3). There is a 50-50 chance of
connecting L1, L2, and L3 correctly the  rst
time. Re-apply the three-phase power.
Red light is
blinking (after the
motor has been
previously
running).
The incoming lines have been reverse
phased. The MotorSaver

is preventing
the motor from running backwards. Correct
the phase sequence.
Red light is
blinking in this
pattern.
The voltage is unbalanced or
single-phased. Measure the incoming line
voltages and calculate the % unbalance. If
the voltage unbalance does not exceed the
% unbalance reset value, call SymCom at
1-800-843-8848 or 1-605-348-5580.
Red light is on
steady.
The voltage is out of tolerance. Measure
the three line-to-line voltages. Calculate
the average of the three voltages. If the
average 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.
Green light blinks
and motor is not
running.
The MotorSaver

is in restart delay.
Green light is on
steady, but motor
does not start.
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.
RED
RED
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SPECIFICATIONS
3 - Phase Line Voltage
190 - 480 VAC
Frequency
50* - 60 Hz
Low Voltage (% of setpoint)
Trip
90%
±
1%
Reset
93%
±
1%
High Voltage (% of setpoint)
Trip
110%
±
1%
Reset
107%
±
1%
Voltage Unbalance (NEMA)
Trip
2 - 8% Adjustable
Reset
Trip Setting minus 1% (5 - 8%)
Trip Setting minus 0.5% (2 - 4%)
Trip Delay Time
Low, High, and Unbalanced Voltage
1 - 30 Seconds Adjustable
Single-phasing faults (>25% UB)
1 Second Fixed
Restart Delay Time
After a fault or 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 Max.
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%
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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.
DIMENSIONS
Surge
IEC
IEC 1000-4-5, Level 3, 4kv line-to-line;
Level 4, 4kv line-to-ground
ANSI / IEEE
C62.41 Surge and Ring Wave Compliance
to a level of 6kv line-to-line
Hi-potential Test
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
2.350
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