WEG CFW-11 User Manual - page 86
Troubleshooting and Maintenance
6
CFW-11 | 6-7
Fault/Alarm
Description
Possible Causes
A704
(4)
Two Movements
Enabled
Two movements have been enabled.
It occurs when two or more movement blocks are enabled
simultaneously.
A706
(4)
Speed Reference
Not Programmed for
SoftPLC
Speed reference not programmed for SoftPLC .
It occurs when a movement block has been enabled and the
speed reference has not been configured for SoftPLC (check
P0221 and P0222).
(1) Very long motor cables (longer than 100 meters) present a high parasite capacitance against the ground. The circulation of parasite currents
through those capacitances may cause the ground fault circuit activation and thus disabling the inverter with F074, immediately after the inverter
enabling. Possible solutions:
- Decrease the carrier frequency (P0297).
- Install an output reactor between the inverter and the motor.
(2) With a Profibus DB module connected into the slot 3 (XC43).
(3) With IOE-01 (02 or 03) modules connected into the slot 1 (XC41).
(4) All the models with a SoftPLC applicative.