Chapter 7: MAINTENANCE
Chapter 8: MANUFACTURER´S DECLARATION
Operating manual DC6AT
Page 25 of 28
6. Finding and eliminating faults
6.1 Resetting faults
♦
Control voltages ON/OFF
♦
Pos. edge on control input “Reset fault“
6.2 Possible causes of faults
A number of possible causes of faults are listed in the table below.
Fault
Possible Cause
Remedy
No ready message
No voltage supply
Check voltage
Device fault
Read fault with monitoring
program
Under voltage (monitoring
program)
Supply voltage2
Acc. to section: check, per-
form reset
Overvoltage (monitoring
program)
Supply voltage
Acc. to section: check, per-
form reset
Motor fed voltage back in
regenerative mode
Prevent regenerative mode
or design supply voltage for
return voltage, perform re-
set
Over temperature (monitor-
ing program)
Heat sink too hot
Allow to cool down, ensure
adequate ventilation, if
necessary remove contam-
ination, perform reset
Processor fault (monitoring
program)
Internal
Perform reset, if the fault
reoccurs, send device in
Ready message, but motor
does not rotate
Motor or wiring defective
Check, if necessary repair
No controller enable
Set controller enable
Controller enable for both
directions at same time
Set controller enable only
for desired direction
Set value zero or too low
Specify correct set value
Motor does not have the
expected torque
Current monitoring limits
the motor current
Reduce load, check pa-
rameters
Motor does not demon-
strate expected running
behaviour
Parameters not correct
Set parameters with moni-
toring program
If you return the unit for testing or repair, please provide the following information:
♦
type of fault
♦
accompanying circumstances
♦
suspected cause of the fault
♦
unusual preceding events
2
The device is equipped with a rapid monitoring system. Even short-term voltage interrup-
tions can result in this fault.