10.5.3.6 Other errors 1
E50 (Bit 11) Velocity error, trolley
The trolley does not move, moves too fast or in the wrong direction. The error is triggered when:
● The output velocity is > 10% of the maximum velocity (P0) and the crane is not moving or
moving in the wrong direction
● The difference between the output velocity and the actual velocity > 20% of the maximum
velocity (P0) (e.g. defective drive)
The error appears with a delay of approx. 3 s. The error message is acknowledged when the
trolley moves.
The causes of these errors can be:
● Defective encoder
● Faulty connection to the drive
● Brake is still closed
The error is not signaled when the following error parameter of the drive (P161) is set to zero.
Error type: Error
Remedy: Check actual velocity and output velocity
E51 (Bit 11) Velocity error, hoist
The hoist does not move, moves too fast or in the wrong direction. The error is triggered when:
● The output velocity is > 10% of the maximum velocity (P40) and the crane is not moving or
moving in the wrong direction
● The difference between the output velocity and the actual velocity > 20% of the maximum
velocity (P40) (e.g. defective drive)
The error appears with a delay of approx. 3 s. The error message is acknowledged when the
hoist moves.
The causes of these errors can be:
● Defective encoder
● Faulty connection to the drive
● Brake is still closed
The error is not signaled when the following error parameter of the drive (P164) is set to zero.
Error type: Error
Remedy: Check actual velocity and output velocity
E52 – E57 reserved
E58 (Bit 21) Initial velocity to start semi-automatic mode (SAM)
The initial velocity when automatic travel starts in SAM mode is too high.
Alarm, error, and system messages
10.5 Error messages
SC integrated STS, GSU
384 Operating Instructions, 07/2019, A5E48271265B AA
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