Operation
User manual 59719_hdb_en_12 41 / 65
Firmware update
Tab. 7-2: Firmware update
NOTE
At US <18 V, an error-free operation is no longer guaranteed.
7.1.2 LED indication UA
Art.-No. 59504, 59604
LED indication UA
Tab. 7-3: LED indication UA
LED in-
dication
LED state Description
Green
Permanently on IO-Link in IDLE status,
Firmware update completed success-
fully
Green
Flashing
1 Hz
IO-Link in status PREOPERATE/OP-
ERATE,
update is not yet performed
Red
Permanently on Update failed
Green/
Red
Flashing
2 Hz
IO-Link in status PREOPERATE/OP-
ERATE,
Update is being performed
Off
Device off, no IO-Link connection
LED in-
dication
LED state Description
Green
Permanently on OK,
17.5 V < UA < 30 V
Red
Permanently on Undervoltage,
12.5 V < UA < 17 V
Red
Flashing
1 Hz
Over voltage (d)
UA > 30.5 V
Off
Device off,
UA < 12 V
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