Troubleshooting
Leuze electronic GmbH + Co. KG
MLC 530 SPG
87
Error
Cause/description
Measures
Sensor behavior
E41
Invalid change of operating
mode due to reversal of the
supply voltage polarity during
operation
Check the wiring and programming
of the device which controls this
signal.
Locking
E60
Fault in the beam configuration Repeat the teach event.
OSSD switches off
E61
Response time exceeded
Reboot. If the problem occurs
again, swap out the device.
OSSD switches off
E62
Blanking areas overlap (teach
error)
Repeat the teach event.
OSSD switches off
E64
After initiating the gating se-
quence, the protective field
was interrupted too late (after
2 s or 4 s)
Press the RES button
OSSD switches off.
E65
Timeout 1 h, elapsed during P-
mode (no protective field viola-
tion after applying the CS sig-
nal), CS is still high after expi-
ration of this time
Press the RES button
OSSD switches off.
E66
CS signal dropped out before
protective field was cleared
again during override
Check CS signal sequence
OSSD switches off.
E67
TH signal dropped out before
protective field was cleared
again during override (operat-
ing mode 1 or 6)
Check TH signal sequence
OSSD switches off.
E68
Override timeout of 120 s ex-
ceeded. Interlock state as-
sumed after 150 s. (> 150 s)
Check wiring or acknowledgment
unit
The OSSD
switches off after
120 s, interlock af-
ter 150 s; the re-
ceiver must be de-
energized after
about 3 min
E69
Simultaneity violation of TH
and CS (> 0.5 s) (operating
mode 1 or 6)
Check CS/TH signal sequence
OSSD switches off.
E70
If the protective field is inter-
rupted, CS is no longer active
or sync beams were inter-
rupted for longer than 1 min.
Check CS signal sequence or rec-
tify interruption of the sync beams
OSSD switches off.
E71
Protective field violation before
gating sequence reset
Press the RES button
OSSD switches off.
E72
Signal error: CS/TH antiva-
lence violated at the end of the
sequence (operating mode 1
or 6)
Check CS/TH signal sequence
OSSD switches off.
E73
Signal error: CS/TH antiva-
lence violated on qualified stop
(operating mode 1 or 6)
Check CS/TH signal sequence
OSSD switches off.
E74
Restart interlock locked
(OSSD off) before SPG start
(CS is high)
Unlocking restart interlock
OSSD switches off.