Stroke Length; Temperature Limit Exceeded - Agilent Technologies 1220 Infinity II LC User Manual

Stroke Length

Error ID: 2206, 2216
The distance between the lower piston position and the upper mechanical stop
is out of limits (pump).
During initialization, the module monitors the drive current. If the piston
reaches the upper mechanical stop position before expected, the motor
current increases as the module attempts to drive the piston beyond the
mechanical stop. This current increase causes the error message to be
generated.
Probable cause
1

Temperature Limit Exceeded

Error ID: 2517
The temperature of one of the motor-drive circuits is too high.
The processor continually monitors the temperature of the drive circuits on
the main board. If excessive current is being drawn for long periods, the
temperature of the circuits increases. If the temperature exceeds the upper
limit, the error message is generated.
Probable cause
1
2
1220 Infinity II LC System User Manual
Defective pump drive assembly.
High friction (partial mechanical blockage)
in the pump drive assembly.
Partial blockage of the flowpath in front of
the damper.
Error Information
Pump Error Messages
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.
Ensure the outlet valve is not blocked.
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