77l_Fehlersuche-en.fm, 06.09.2011 P2077SB/EN 2011-09 71
Troubleshooting
15
Error
Description
Possible causes Measures and
remedies
Servo:
IP monitoring: NOK
(also displayed in the rundown
data table)
Overload
If a current higher than the maxi-
mum permissible current is
required for fastening, the servo
amplifier switches off automati-
cally.
Error in
motor position tracing,
i.e. resolver cable
Check the resolver wires in the
nutsetter cable
➔ Replace the nutsetter cable
and check the resolver wires
in the nutsetter cable for
breaks
➔ Replace the DGD-IS or motor
Error in the motor circuit, i.e.
motor does not attain the
required torque
➔ Check motor for short circuit
to PE and phase resistances:
1BT… approx. 11 ,
2BT approx. 2 ,
3/4BT… approx. 0.6 W.
➔ Replace motor
Incorrect programming
➔ Check programming in
mPro400GC-M
– Spindle constants
– Calibration values
– Fastening process
(sequence)
– Parameter set
– Targets
Servo:
Intermediate circuit voltage:
too high
The voltage in the
intermediate power circuit is
> 440 VDC
Constant error See CPS3 troubleshooting –
no error on CPS3
➔ Replace the TSE/TUSE
The error is triggered during
braking, i. e. when the DGD-IS
stops
See CPS3 troubleshooting –
no error on CPS3
➔ Replace the TSE/TUSE
Sporadically, the voltage is tem-
porarily too high
See CPS3 troubleshooting –
no error on CPS3
➔ Replace the TSE/TUSE
Servo:
Intermediate circuit voltage:
too low
The voltage in the intermediate
power circuit is < 190 VDC
Constant error See CPS3 troubleshooting –
no error on CPS3
➔ Check the system cable for
interruptions
➔ Replace the system cable
System cable OK
➔ Replace the TSE/TUSE
During fastening, error is trig-
gered during the fastening pro-
cess
See CPS3 troubleshooting –
no error on CPS3
➔ Replace the TSE/TUSE
Sporadically, the voltage is tem-
porarily too low
See CPS3 troubleshooting –
no error on CPS3
➔ Check the mains power sup-
ply for voltage drops
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