IFM OMH551, Operating Instructions Manual, Page: 15 / 23

Photoelectric distance sensor OMH551 OMH553 OMH555
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w Green status LED flashes (1 Hz).
w
After 10 seconds, the green status LED flashes twice (50 Hz).
w
The sensor is locked and returns to the Run mode.
Unlocking:
u
Press and hold [●] and [▼] simultaneously for 10 seconds.
w Green status LED flashes (1 Hz).
w After 10 seconds, the green status LED flashes twice (50 Hz).
w
The sensor is unlocked and returns to the Run mode.
Indication of device locking:
u
Press [●] or [▼].
w
Green status LED goes out for 0.5 seconds.
w
The device changes to Run mode and the green status LED is again lit permanently.
9.4.2 Parameter setting via IO-Link
u Call up [Parameters] > [Display settings].
u
Select [Loc].
u
Set [Loc] for locking and [uLoc] for unlocking.
Indication of device locking:
u
Press [●] or [▼].
w
Green status LED goes out for 0.5 seconds.
w The device changes to Run mode and the green status LED is again lit permanently.
9.5 Indication of current setting (Info mode)
u
Press [▼] to change to the Info mode.
w
LEDs light up for 2 seconds depending on the setting at [I] / [U].
w
Sensor returns to the Run mode.
9.6 Reset to factory setting
9.6.1 Reset via device buttons
u
Disconnect the voltage supply.
u
Press and hold [▼] and restore the voltage supply.
u
Release [▼] press [●].
w Green status LED flashes twice confirming reset to factory setting.
9.6.2 Reset via IO-Link
u
Call up [Parameters] > [Basic settings].
u
Click on the system command [Reset application] or [Back-to-box].
w
The device is reset according to the selected reset method.