Vertiv CoolChip CDU 600 - Page 57

Code Description Severity Self-Clear Latching Shutdown Shutdown
A09
PS1a Secondary Pressure Sensor
Fault
3
ü
— — —
Detail:
Reading from Secondary return pressure sensor PS1a (Fill pressure) is outside the normal range of -1 to 8 bar (-15 to 116 PSI) and min/max
values only will be displayed. Note: for DP control, if system differential pressure is not valid, then pump speed will remain at last
known demand.
Action: Use external fluid source, engage filling wand and fill pump P4 to refill the reservoir tank
A10
PS1b Secondary Pressure Sensor
Fault
3
ü
— — —
Detail:
Reading from secondary return pressure sensor PS1b (also staticFillpressure) is outside the normal range of -1 to 8 bar (-15 to 116 PSI) and
min/max values only will be displayed. Note: for DP control, if system differential pressure is not valid, then pump speed will remain at
last known demand.
Action: Check sensor connections to the control board, check inline connections, replace sensor.
A11
PS2a Secondary Pressure
Sensor Fault
3
ü
— — —
Detail:
Reading from Secondary supply pressure sensor PS2a is outside the normal range of -1 to 8 bar (-15 to 116 PSI) and min/ max values only
will be displayed [Note: for DP control, if system differential pressure is not valid, then pump speed will remain at last known demand].
Action: Check sensor connections to the control board, check inline connections, replace sensor.
A12
PS2b Secondary Pressure
Sensor Fault
3
ü
— — —
Detail:
Reading from secondary return pressure sensor PS2b (also static Fill pressure) is outside the normal range of -1 to 8 bar (-15 to 116 psi) and
min/max values only will be displayed. Note: for DP control, if system differential pressure is not valid, then pump speed will remain at last
known demand.
Action: Check sensor connections to the control board, check inline connections, replace sensor.
A13*
PS3 Primary Pressure Sensor
Fault
3
ü
— — —
Detail:
Reading from primary filter inlet pressure sensor PS3 is outside the normal range of -1 to 8 bar (-15 to 116 psi) and min/max values only will
be displayed Note: if filter differential pressure is not valid, then pump speed will remain at last known demand.
Action: Check sensor connections to the control board, check inline connections, replace sensor.
A14*
PS4Primary Pressure Sensor
Fault
3
ü
— — —
Detail
Reading from primary filter outlet pressure sensor PS4 is outside the normal range of -1 to 8 bar (-15 to 116 psi) and min/max values only will
be displayed Note: if filter differential pressure is not valid, then pump speed will remain at last known demand.
Action: Check sensor connections to the control board, check inline connections, replace sensor.
A15*
PS5a Secondary Pressure
Sensor Fault
3
ü
— — —
Detail:
Reading from secondary filter inlet pressure sensor PS5a (Pump 1 outlet) is outside the normal range of -1 to 8 bar (-15 to 116 psi) and
min/max values only will be displayed.
Action: Check sensor connections to the control board, check inline connections, replace sensor.
A16*
PS5b Secondary Pressure
Sensor Fault
3
ü
— — —
Table 4.41 Alarm Identification and Severity Level (continued)
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Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide