Johnson Controls YORK YK MaxE - Page 152

JOHNSON CONTROLS
152
FORM 160.54-O1
OptiView Control Center
“LCSSS – INVALID CURRENT SCALE
SELECTION”
There is an invalid compressor motor current scale
jumper combination installed in the Liquid Cooled
Solid Starter Logic/Trigger Board J1. Jumper combina-
tion determines allowable “100% FLA” setpoint range;
7L-35 to 260A, 14L-65 to 510A, 26L-125 to 850A and
33L-215 to 1050A. The chiller will be permitted to
start when the jumpers are congured correctly. Refer
to YORK Starter service manual 160.00-O2 for valid
jumper congurations.
“LCSSS – PHASE LOCKED LOOP”
The Liquid Cooled Solid State Starter Logic/Trigger
Board phase locked loop circuit was not able to main-
tain lock with phase A of the power line. This could be
caused by a power line anomaly such as sag or jitter. A
power line frequency jitter of up to 3 Hz/second can be
tolerated. The chiller will automatically restart when
lock has resumed.
“LCSSS - LOW SUPPLY LINE VOLTAGE”
The Liquid Cooled Solid State Starter Logic/Trigger
Board has detected that the compressor motor AC
power line voltage, in any phase, decreased below the
low line voltage threshold continuously for 20 seconds.
The chiller will automatically restart when the voltage
in all phases returns to the restart level. The thresholds
are as follows:
Supply Voltage Range (Volts) Shutdown(Volts) Restart(Volts)
Disabled None N/A
200-208 160 174
220-240 185 200
380 305 331
400 320 349
415 335 362
440-480 370 400
550-600 460 502
“LCSSS - HIGH SUPPLY LINE VOLTAGE”
The Liquid Cooled Solid State Starter Logic/Trig-
ger Board has detected that the compressor motor AC
power line voltage, in any phase, exceeded the high line
voltage threshold continuously for 20 seconds. The
chiller will automatically restart when the voltage in all
phases returns to the restart level. The thresholds are as
follows:
Supply Voltage Range (Volts) Shutdown(Volts) Restart(Volts)
Disabled None N/A
200-208 227 226
220-240 262 261
380 415 414
400 436 435
415 454 453
440-480 524 523
550-600 655 654
“LCSSS – LOGIC BOARD PROCESSOR”
Communication between the V25 Microprocessor and
Digital Signal Processor (DSP) on the Liquid Cooled
Solid State Starter Logic/Trigger Board has been in-
terrupted. The chiller will automatically restart when
communications are restored.
“LCSSS – LOGIC BOARD POWER SUPPLY”
Following application of power, this message is dis-
played and a snapshot of the LCSSS parameters and time
of power failure are sent to the Control Center.
“LCSSS – PHASE ROTATION/LOSS”
(Flash Memory Card version C.MLM.01.03 or earlier)
The Liquid Cooled Solid Starter Logic/Trigger Board
has detected the three-phase compressor motor power
line voltage phase rotation is not correct or the line-to-
line voltage in any phase has decreased to less than 30%
of nominal. The chiller will automatically restart when
the power line conditions are acceptable.
“LCSSS – PHASE LOSS”
(Flash memory Card version C.MLM.01.04 or later)
The Liquid Cooled Solid State Starter Logic/Trigger
Board has detected the line-to-line RMS voltage in any
phase has decreased to less than or equal to 30% of the
lowest value of the programed voltage range. If the
programmed voltage range is “Disabled”, a value of
60VAC is used as the threshold. The chiller will auto-
matically restart when the line voltage is greater than the
shutdown threshold. The voltage range is programmed
by a Service technician following instructions in Service
Manual 160.54-M1.