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. |