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Electric Drives
and Controls
4–9
Bosch Rexroth AG
Servodyn-D
1070 066 032 / 03
VMA..KR, VMA..B,C,D,F and DM/DS error displays
Displays flash
alternately.
Action
Error
The drive has switched off.
Drives do not stand still
Drives shutdown not completed when time
limit has expired
D
Check time limit setting in VM
D
Check enable signals
D
Clear error with “Drive On”
Channel error Emergency-Stop
None of the channels was not switched
within 0.5 sec
D
Check Emergency-Stop wiring
(X312.2, X06.3/4)
D
Clear error by activating the Emergency
Stop channel again, then unlocking
Emergency Stop channel, then output-
ting “Drive On”.
Channel error operating mode (RSU)
Operating mode switchover via channels
NO and SO does not take place within 2
sec.
D
Check control of the VM inputs NO and
SO (X312.3/4, X06.6)
D
Check safety door tumbler control
D
Clear error with “Drive On”
Channel error safety door tumbler
(RSU)
The check-back signal “safety door re-
leased” was not given within approx. 2 sec.
in special mode
D
Check safety door tumbler
D
Check PLC check-back signal (X312.6)
D
The VM should be replaced if there is a
short-circuit in the driver of the safety
door release (X312.5)
D
Clear error with “Drive On”
Normal operating mode:
Output stage cannot be switched off
Special mode (RSU):
Channel error Acknowledgement
D
The two acknowledgement channels
have not been activated simultaneously
(P-0-0024)
D
Time limit P-0-0023 for acknowledge-
ment exceeded
Channel error “Safe signal transmis-
sion”
Defective signal transmission in X810 start-
ing with module with this error message
Channel error “Safety-oriented data”
The cyclic safety-oriented data on the PM
module and in the EEPROM are not identi-
cal
.
For details of the fault, refer to
S-0-0095, cf. page 4–14.
D
Clear error on the DMs by “Reset Diag-
nostics class 1 error”, on the VM with
“RESET”
D
Replace module
D
Check wiring (X312.1, X06.5)
D
Check key for mechanical or electrical
bridge
D
Observe sequence of operations
D
Check X810 signal cross-connection
D
Replace module
D
Check safety-oriented data
D
Clear error by “Reset Diagnostics class
1 error”
Channel error FGZ (RSU)
Defective transmission of the central en-
able signal from VM
D
Check X810 signal cross-connection
D
Replace module