User Manual

8. Diagnosis and error treatment
8−35
Festo P.BE−SPC200−EN en 0901d
8.3.2 Faults when positioning
1) Drive does not move
Cause Remedy Remarks
No supply pressure Check
Valve cable is not connected
correctly
Check See section 3.6.1
Proportional directional
control valve is defective
Check and, if necessary, replace. Carry out movement test,
see section 4.4.2
2) Axis moves against end positions
Cause Remedy Remarks
Cables not connected
correctly
Check See section A
Measuring system is
defective or not connected
Check See section 3.6.1
Proportional directional
control valve is defective
Check Carry out movement test,
see section 4.4.2
Tip:
Use the movement test to check the function of the measur
ing system, including the transmission of measured values to
the SPC200. During the movement, at the same time observe
the actual position displayed on the MMI control panel or in
WinPISA in the status display / axes  does the position
value
change as expected?
Here you can also shift the axis by hand  only permitted
when the compressed air is turned off!