Troubleshooting

 

Troubleshooting

Troubleshooting

Issue

Cause

Solution

Movement is limited in terms of speed, but not optimized

Motor load on hook level is less than 10% of nominal load

Details for i_wHookTrqUp

Rope slack detection while moving up is not working

Parameter i_wHookTrqUp is set to zero

Check parameter setting for i_wHookTrqUp according to the explanations given for i_wHookTrqUp.

Rope slack detection while moving down is not working

Parameter i_wHookTrqDown is set to zero

Check parameter setting for i_wHookTrqDown according to the explanations given for i_wHookTrqDown.

The actual motor speed does not correspond to speed reference.

Preset speeds configuration interferes with speed reference from controller.

Disable preset speeds in application functions setting of the drive.

The actual motor speed does not correspond to speed reference.

Limit switch configuration interferes with speed reference from controller.

Disable limit switch function in application functions setting of the drive.

The actual motor speed or read actual speed do not correspond to speed reference.

Communication mapping is inconsistent.

Make sure that both speed reference and actual speed values have the same unit (Hz or RPM).

The brake is excessively stressed when starting hoisting movement in downwards direction.

Brake impulse is not active.

Activate brake impulse in Application functions – Brake logic of the Altivar drive.