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Problem: The actuator does not move after a run-command
Diagnosis:
Check with BusLink:
Current Cut-off limits (Inwards/Outwards) and Max. Amps
measured.
Check with BusLink:
Position is valid, i.e. <> 32767.
Check with MODBUS master:
Read Input register 6 (Actual_VIN) to verify that power supply
is within specified values.
Check with MODBUS master:
Read Input register 4 (Status Register 1) to verify that the
preconditions to run are fulfilled (Ready & Position Valid).
Check with MODBUS master:
Read Input register 5 (Reason for Last Stop) to identify the
cause (ref. Appendix A).
Causes/solutions:
Cause:
Actuator is already moving when it receives the command.
4
Solution:
Check that preconditions
5
are fulfilled before sending new run.
Cause:
Power supply voltage is below min. or above max. limits.
Solution:
Adjust supply voltage.
Cause:
Current limit exceeded.
Solution:
Adjust current limits by use of BusLink or decrease actuator load.
Cause:
Actuator lost its position.
Solution:
Reinitialise In/Out by use of BusLink.
Cause:
Temperature limit exceeded.
Solution:
Verify that specified operation conditions are met.
Cause:
Voltage or power supply error.
Solution:
Return the actuator for repair if you consistently recognise stop 9 ‘Power Switch
error’, 10 ‘H-bridge error’ or 11 ‘High side voltage error’.
Cause:
Motor stall due to wrong load/speed relationship.
Solution:
Increase Max Speed setting by use of BusLink or MODBUS master.
Problem: BusLink PC tool can not communicate with the actuator
Diagnosis:
Errors announced during startup or no connection to actuator.
Causes/solutions:
Cause:
.ini file (C:\Program Files\Linak\BusLink\parametertable_0.xxx.ini) is incompatible
with the actuator.
Solution:
Update .ini file to match the current actuator parameter table version.
Cause:
The USB2LIN communication cable is too old and incompatible with BusLink.
6
Solution:
Update USB2LIN cable.
4
If you really want to interrupt and start a new positioning, then execute a stop-command first
5
See Run to target page 21
6
See BusLink Configuration Software page 26 for details