FORM 160.77-O2
ISSUE DATE: 11/15/2011
SECTION 5 - DISPLAY MESSAGES
JOHNSON CONTROLS
119
5
a response from the control center after 3 consecutive
attempts to communicate with the Control Center after
INITIALIZATION has been successfully completed.
The Control Center attempts to establish communica-
tions until successful.
SEC SSS: Power Supply
This message is displayed after a loss of power. Fol-
lowing application of power, this message is displayed
and a snapshot of the LCSSS parameters and time of
power failure are sent to the control center.
SEC SSS: Phase Rotation
The Solid Starter Logic/Trigger Board has detected
the three-phase compressor motor power line voltage
phase rotation is not correct or applied to 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.
SEC SSS: Read Fail
The Liquid Cooled State Starter Logic/Trigger Board
has shut down the chiller but the Control Center has
not yet received the cause of the fault from the LCSSS,
via the serial communications link. The LCSSS shuts
down the chiller by opening the Motor Controller LC-
SSS Stop Contacts. The Control Center then sends a
request for the cause of the fault to the Logic/Trigger
Board over the serial communications link. Press the
RESET button to clear the message.
SEC SSS: Write Fail
The Liquid Cooled State Starter Logic/Trigger Board
has not yet received confirmation that the LCSSS data
has been written to. Press the RESET button to clear
the message.
SEC SSS: Read Failure Trip
After communications have been established, if the
Control Center does not receive a reply within 3 con-
secutive read attempts, a shutdown is performed. This
same shutdown is performed if the Liquid Cooled Solid
State Starter does not receive a response from the con-
trol center after 3 consecutive read attempts to commu-
nicate with the Control Center after INITIALIZATION
has been successfully completed. The Control Center
attempts to establish communications until successful.
Press the RESET button to clear the message.
Primary Oil Pump Drive Did Not Make
Setpoint
Anytime after the first 30 seconds of “System run”, the
differential oil pressure is less than the Oil Pressure
Setpoint with the speed command from the Microboard
at 60 Hz for 5 continuous seconds.
Primary Oil Pump Drive Fault
This message is generated when the Variable Speed Oil
Pump Drive has a fault condition, check fault codes in
the Variable Speed Oil Pump Panel.
Primary Oil Pressure Low Alarm
This message is displayed when the oil supply pressure
is less than 20 PSID.
Primary Oil Pressure Low Trip
This message is displayed when the oil supply pressure
is less than 15 PSID.
Primary Oil Pressure High Alarm
This message is displayed when the oil supply pressure
is greater than 85 PSID.
Primary Oil Pressure High Trip
This message is displayed when the oil supply pressure
is greater than 90 PSID.
Primary Oil Pressure Sensors Will Not Zero
This message is generated when the Oil Pressure Sen-
sors will not zero. Check the wiring and Sensor to see
if there is faulty connections. If the Oil Pressure Sensor
continues to not zero, replace the sensor.
Secondary Oil Pump Drive Did Not Make
Setpoint
Anytime after the first 30 seconds of “System run”, the
differential oil pressure is less than the Oil Pressure
Setpoint with the speed command from the Control
Center at 60 Hz for 5 continuous seconds.
Secondary Oil Pump Drive Fault
This message is generated when the Variable Speed Oil
Pump Drive has a fault condition, check fault codes in
the Variable Speed Oil Pump Panel.
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