Bosch PIF6..T1.. Especificaciones descargar pdf (Pagina 24)

ECODRIVE Drive Controller DKC02.1

2-14 Error Diagnostic Messages DOK-ECODRV-SSE-03VRS**-WAR1-EN-P • 12.96

F873 Power supply drive stage fault

Description:

The power supply of the drive stages is monitored. The drive is switched

off if the voltage is too low.

Cause:

1. The power supply voltage of the driver stages is too low.

Remedial action:

Ref. 1. Replace the control unit.

F878 Velocity Loop Error

If, with an active speed control loop, the difference between speed

command value and feedback value is greater than 10% of the maximum

motor speed, the speed feedback value must change in the direction of

the command value. This error is generated if an approach to the

command value cannot be detected for more than 20 ms and if the

effective torque/force command value is within the limit (= P-0-4046,

Active peak current).

Cause:

1. Wrong connection of motor cable

2. Power section of drive controller is defective

3. Feedback is defective

4. Incorrect setting of speed controller parameter value

5. Acceleration or deceleration ramp is too steep

Remedial action:

Ref. 1. Check the motor cable connection

Ref. 2. Replace the drive controller

Ref. 3. Replace the motor

Ref. 4. Check the speed controller according to the application

description (see Chapter "Speed controller")

Ref. 5. Reduce the maximum acceleration in the controller

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Bosch PIF6..T1.. Especificaciones Pagina 24