Servo Restart Failed - Agilent Technologies 1220 Infinity II LC User Manual

10
Error Information
Pump Error Messages
The sensor on the main board detects when the top foam is in place. If the
module is restarted with the foam removed, the module switches off within
30 s, and the error message is generated.
Probable cause
1

Servo Restart Failed

Error ID: 2201, 2211
The pump motor in the module was unable to move into the correct position
for restarting.
When the module is switched on, the first step is to switch on the C phase of
the variable reluctance motor. The rotor should move to one of the C positions.
The C position is required for the servo to be able to take control of the phase
sequencing with the commutator. If the rotor is unable to move, or if the C
position cannot be reached, the error message is generated.
Probable cause
1
2
3
4
5
210
The module started with the top cover and
foam removed.
Mechanical blockage of the module.
Disconnected or defective cable.
Blocked (passive or active) inlet valve.
Defective pump drive assembly.
Defective main board.
Suggested actions
Please contact your Agilent service
representative.
Suggested actions
Remove the pump-head assembly. Ensure there
is no mechanical blockage of the pump-head
assembly or pump drive assembly.
Please contact your Agilent service
representative.
Exchange the (passive or active) inlet valve.
Please contact your Agilent service
representative.
Please contact your Agilent service
representative.
1220 Infinity II LC System User Manual