Copeland 085-0160-00 Instruction Manual

© 2000 Copeland Corporation
Printed in U.S.A.
10-1313
1
Copeland 10-1313
Application Engineering Bulletin
AE-1313 Issued September, 2000
GUIDELINES TO USING A THREE PHASE VOLTAGE MONITOR
10-1313
INTRODUCTION
A phase monitor can be used with any three phase
motor. A monitor such as the Copeland 085-0160-00 is
recommended for monitoring remote locations or envi-
ronmentswithahistoryofadversevoltagefluctuations.
Manycompressorfailuresarecausedby anintoler-
able line voltage. These voltage variations can have
many different sources such as contactor failure or
ground interference. Irrelevant of the cause, compres-
sor failures due to voltage fluctuations may be pre-
vented. Although the voltage fluctuations themselves
maybeinevitable,actualmotordamagecanusuallybe
averted.
FAULT DETECTION
The phase monitor checks for critical faults
•Phase loss
•Phase reversal
•Highvoltage
•Lowvoltage
•Voltageunbalance
A phase reversal is very damaging to phase sensi-
tivemachines such as scrollcompressors, screw com-
pressors, and fan motors. A phase loss will cause
excessivelyhighcurrentresultinginhightemperatures
in the other two motor phases. High voltage causes
excessive temps inside the motor. Low voltage in-
creases the slip of the motor producing excess heat.
Phase unbalance is when the voltage to each phase is
notequal,asaresult, some windings do more work than
others.This causes excessive heat.
ELECTRICAL WIRING SET UP
For single contactor systems, connect the monitor
to the three phase power supply as shown inFigure 1 .
Fora part winding start with two contactorsandtwo
phase monitors, connect the monitors as shown in
Figure 2.
Figure 1
Voltage Wiring for Three Phase Line Monitors
*
*
*1ampfuserecommended

© 2000 Copeland Corporation
Printed in U.S.A. 2
Copeland 10-1313
© 2000 Copeland Corporation
Printed in U.S.A. 2
Figure 2
Part Winding Start (PWS) For 3-Phase Monitors

© 2000 Copeland Corporation
Printed in U.S.A.
10-1313
3
Copeland 10-1313
LOAD/ALARM RELAY
The relay shown in Figure 3 is used to control the
contactor coil. Wire terminals 4 and 6 are in series with
the control circuit as shown in Figure 3. If needed,
terminal five (the normally closed side of the relay) can
be used for alarm installation.
Figure3
PARAMETER SETTINGS
Changes to parameter settings may result in less
thanoptimumprotection. Theparameter settingsareas
follows:
AverageLine Voltage
Factory setting : 208VAC
Set the expected phase to phase line voltage value. It
is adjustable from 190 to 630 volts.
TimePhase Loss/Unbalance
Factory setting: 2 min
Enter the amount of time that the phase monitor waits
aftera fault before tryingto restart. It is adjustablefrom
2 to 10 minutes.
TimePhase Unbalance
Factory setting:15 sec
Enter the amount of time that the monitor allows a fault
toexistbeforetripping into a fault mode. It is adjustable
from 0 to 15 seconds.
% Over Voltage
Factory setting: 10%
Enter the allowable over voltage percent. When the
voltage exceeds this range, the monitor trips. It can be
adjusted from two to 10 percent.
% Under Voltage
Factory setting: 10%
Enter the allowable under voltage percent. When the
voltage goes under this range, the monitor trips. It can
be adjusted from 2 to 10 percent.
PhaseUnbalance
Factory setting: 5%
Enter the acceptable phase unbalance percent. It can
be adjusted from two to five percent.
Reset Mode
Factory setting: 5 retrys
The reset mode determines what the unit does after
recording a fault. If the reset mode is Auto, the unit
restarts when the input conditions are correct.
If you choose a number between 1 and 5, this is the
number of times that the unit restarts before going into
lockout. Thereafter it requires a manual restart. If you
enter0, the unit alwaysgoes into lockout aftera failure.
Note: This unit will lockout only on load side faults. For
any line side faults, the unit will lock out just for the
duration of the fault.
ControlMode
Factory setting: off
Adjustment not permitted when used on the Copeland
compressors.
Note: It may be necessary to clear any faults that
occurredduring initial power up. Toclear faults, simply
hold down the [FAULT] button until the LCD screen
flashes Faults Cleared (approximately 5 seconds).
Should adjustment be desired, the touch pad shown in
Figure 4 can be used.
Figure 4
Touchpad

© 2000 Copeland Corporation
Printed in U.S.A. 4
Copeland 10-1313
Table 1
Troubleshooting
Symptom LCD Readout LED Status Corrective Action
Load will not
energize Phase Avg (Phase Average) Load LED OFF, Fault LED blinking 1)Confirm that the control input is properly connected. 2)Press
[FAULT] to observe the current fault.
Correct the condition of the first fault
which appears. (See Table 2 for a
list of corrective actions).
Fault LED
blinks
repeatedly
while load is
energized.
Phase Avg Fault LED blinking.
Load LED ON. Indicates that there are faults saved in the memory. To clear faults, press
and hold [FAULT] for more than 2
seconds
Setup LED is on
while load is
being energized
Other than Phase
Avg Setup LED ON. Load LED ON. To exit the Setup mode, press either the [READ] or the [FAULT] button.
Load will not
energize RESET Fault LED blinking. Unit in Lockout. Maximum #of retries in manual reset mode has expired.
To reset unit, press [FAULT] and
hold for approximately 2 seconds.
Load turns ON
and OFF Does not matter Fault LED blinking. The amount of time between the load de-energizing and re-energizing may
be to short. Press set up to enter
time phase loss/rev (Delay on break)
mode. Use the arrow up to lengthen
the delay.