Maximum Stroke Is Too Short; Pump Drive Stop Not Found - Agilent Technologies InfinityLab LC Series User Manual

7 Error Information
Pump Error Messages

Maximum stroke is too short

Error ID: 29203
The maximum stroke is too short.
During initialization the pump defines the operation position of the pump drives
and therefore the pistons. First the pump drive moves backwards to find a
mechanical stop within the ball screw. Afterwards, pistons move forwards for
finding the maximum available stroke volume. These values are expected within
a pre-defined range. "Maximum stroke too short" means that the outer drive
position is too close. This can be caused by a drive initialization without pump
head or if the pump head has not been installed properly (screws are loose).
•
Probable cause
1
2
3

Pump drive stop not found

Error ID: 29207
The pump drive stop has not been found.
•
Probable cause
1
1260 Infinity II Flexible Pump User Manual
Parameter: 1 – 2 referring to pump drive
Wiper shifted
Pump head blocks piston movement
Pump drive motor is mechanically blocked.
Parameter: 1 – 2 referring to pump drive
Pump drive spindle is defect.
Suggested actions
Please contact your Agilent service
representative.
Replace, clean or repair pump head.
Please contact your Agilent service
representative.
Suggested actions
Please contact your Agilent service
representative.
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