XCell™ Lab Controller
User Guide
59 repligen.com XC-LAB-UG-V4
Alarm/Interlock
Event Trigger
System Response
Diaphragm Pressure Sensor
Failure
Diaphragm pressure sensor (P2)
analog input is out of range (0-10V) or
disconnected from the PLC
If enabled, system will not calculate
TMP, it is set to 0
Permeate Pressure Sensor
Failure
Permeate pressure sensor (P3) is not
communicating to the PLC, when it is
configured to be present
If enabled, system will not calculate
TMP, it is set to 0
PCV not Tracking Setpoint
The filter is running, but the
diaphragm pressure sensor (P2) reads
35 mbar or more below the
commanded pressure or exhaust
value for more than 3 consecutive
cycles
This alarm can be a demonstration
of supply deficiencies. If the
deficiency occurs on the vacuum
command, the pressure command
will be locked and not allowed to
increase. If the alarm occurs due to
a lack of pressure, the vacuum
command will be locked and not
allowed to increase
Initialization Error
The initialization process does not
complete successfully
Cannot start process when caused
by inadequate pressure supply,
when caused by flow sensors, the
default flow values will be used
Filter B Flow not Meeting
Setpoint
The average flow after 40 consecutive
cycles is less than 90% of the setpoint
System adjusts the pressure curve
to try to attain the setpoint
PCV not Tracking Setpoint
The filter is running, but the
diaphragm pressure sensor (P2) reads
35 mbar or more below the
commanded pressure or exhaust
value for more than 3 consecutive
cycles
This alarm can be a demonstration
of supply deficiencies. If the
deficiency occurs on the vacuum
command, the pressure command
will be locked and not allowed to
increase. If the alarm occurs due to
a lack of pressure, the vacuum
command will be locked and not
allowed to increase
Initialization Error
The initialization process does not
complete successfully
Cannot start process when caused
by inadequate pressure supply,
when caused by flow sensors, the
default flow values will be used