Troubl e shooti ng
User instructions. DGM speed regulator
146
No.
Error name
Error description
Possible causes/remedies
21
Bus time-out
No response from the bus
user or from the MMI / PC
Check the bus wiring
22
Confirmation error
The maximum number of
automatic resets (1.182) has
been exceeded
Check the error chronology
and eliminate the error
23
External error 1
The parameterized error input
is active. 5,010
Eliminate the external error
24
External error 2
The parameterized error input
is active. 5,011
Eliminate the external error
25
Motor detection
Motor identification error
Check the DGM / motor and
the PC / MMI / DGM
connections / restart of motor
identification
26
STO input plausibility
The states of the two
STO inputs were not identical
for more than 2 seconds.
Incorrect connection of the
STO inputs. Check the
external wiring.
32
IGBT trip **
The overload protection for
the IGBT module has tripped
Short circuit in the motor or
the motor power supply line /
regulator settings
33
Intermediate circuit
overvoltage **
The maximum voltage of the
intermediate circuit was
exceeded
Regenerative power supply
with the motor in generator
mode / excessive network
voltage / incorrect regulation
of the revolution regulator /
brake chopper not connected
or defective / ramp times too
short
