Applicable Systems
DR-PRO 50t
Symptoms
The crane reports a hoist overload. The lifted load exceeds the rated capacity of the rope hoist.
Possible Causes
- Load weight exceeding the hoist rated capacity
- Load cell calibration error giving false reading
- Dynamic loading from sudden acceleration or deceleration
Troubleshooting Steps
- Step 1: Verify the actual load weight against the hoist capacity
Load is within rated capacity - Step 2: Check the load cell calibration and zero point
Load cell reads accurately - Step 3: Ensure smooth lifting to avoid dynamic load spikes
Load lifts smoothly without spikes
How to Reset
To reset: Remove excess load or recalibrate the sensor, then reset the overload protection.
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Source: Demag DR Rope Hoist Manual, Demag Cranes & Components GmbH
Category: Crane
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