SymCom MOTORSAVER 460 Installation Instructions Manual

INSTALLATION!

is used on

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.

of the motor starter. (See Figure No. 1).

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

LIGHT

3-Phase Voltage

CONTROL VOLTAGE

24-240 VAC

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to the nominal

three-phase line voltage feeding the motor

to be protected.

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.

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

does not recommend operating a motor above 1% voltage unbalance without

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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YOU HAVE JUST INSTALLED THE FINEST

®

®

will

TROUBLESHOOTING

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does not have enough power

to operate its internal electronics. This

the voltages are correct, call SymCom at

two leads powering the MotorSaver

(L1,

time. Re-apply the three-phase power.

is preventing

the motor from running backwards. Correct

the phase sequence.

voltages and calculate the % unbalance. If

the voltage unbalance does not exceed the

the three line-to-line voltages. Calculate

the average of the three voltages. If the

voltage as selected by the LINE VOLTAGE

ADJUST, the MotorSaver

is functioning

is in restart delay.

is in run mode. Ensure

RED

RED

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Trip

Reset

±

Trip

±

Reset

Voltage Unbalance (NEMA)

Trip

Reset

Low, High, and Unbalanced Voltage

Single-phasing faults (>25% UB)

After a fault or complete power loss

Pilot Duty

480 VA @ 240 VAC

General Purpose

Weight

Torque

Wire AWG

UL

CE

Electrostatic Discharge (ESD)

Radio Frequency Immunity, Radiated

Fast Transient Burst

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for a period of  ve (5) years* from the date of manufacture. All other products manufactured by

years from the date of manufacture. For complete information on warranty, liability, terms, and

IEC

ANSI / IEEE

to a level of 6kv line-to-line

Hi-potential Test

Temperature Range

Ambient Operating: -20° - 70° C (-4° - 158°F)

Ambient Storage: -40° - 80° C (-40° - 176°F)

2.350

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