Rectifying the fault
Leuze electronic MLC 530 78
11.3 Error messages 7-segment display
Table 11.3: Messages of the 7-segment display (F: internal device error, E: external error, U: usage
info during application errors)
Error Cause/description Measures Sensor behav-
ior
F[No. 0-255] Internal fault If a restart is unsuccessful, contact
customer service.
OFF Very high overvoltage (
40 V) Supply the device with the correct
voltage.
E01 Cross connection between
OSSD1 and OSSD2
Check the wiring between OSSD1
and OSSD2.
Automatic reset
E02 Overload on OSSD1 Check the wiring or exchange the
connected component (reducing
the load).
Automatic reset
E03 Overload on OSSD2 Check the wiring or exchange the
connected component (reducing
the load).
Automatic reset
E04 High-impedance short circuit to
VCC OSSD1
Check the wiring. Exchange the
cable, if applicable.
Automatic reset
E05 High-impedance short circuit to
VCC OSSD2
Check the wiring. Exchange the
cable, if applicable.
Automatic reset
E06 Short circuit against GND at
OSSD1
Check the wiring. Exchange the
cable, if applicable.
Automatic reset
E07 Short circuit against +24 V at
OSSD1
Check the wiring. Exchange the
cable, if applicable.
Automatic reset
E08 Short circuit against GND at
OSSD2
Check the wiring. Exchange the
cable, if applicable.
Automatic reset
E09 Short circuit against +24 V at
OSSD2
Check the wiring. Exchange the
cable, if applicable.
Automatic reset
E10, E11 OSSD error, source unknown Check the wiring. Exchange the
cable and the receiver if neces-
sary.
Automatic reset
E14 Undervoltage (< +15 V) Supply the device with the correct
voltage.
Automatic reset
E15 Overvoltage (> +32 V) Supply the device with the correct
voltage.
Automatic reset
E16 Overvoltage (> +40 V) Supply the device with the correct
voltage.
Locking
E17 Foreign transmitter detected Remove foreign transmitters and
increase the distance to the reflect-
ing surfaces. Actuate the start but-
ton if available.
Locking
E18 Ambient temperature too high Ensure correct environmental con-
ditions
Automatic reset