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Wiring
4.2
Fig. 19:
A Normal operating status
Normal operating status:
• Device in operation
• No error message present
(Alarm LED off)
› Relay energised
› Contact 42/43 closed
4.3
After wiring up the electrical connection, carry out the following checks:
Device status and specifications
Are the transmitter or the cable externally damaged?
Electrical connection
Are the installed cables strain-relieved?
No loops and cross-overs in the cable run?
Are the signal cables correctly connected acc. to the wiring
diagram?
Are all screw terminals tightened?
Are all cable entries installed, tightened and sealed?
Are the PE distributor rails grounded (if present)?
22
Alarm contact
A
41
42
43
Recommended fail-safe switching for the alarm contact
Post-connection check
B
B Alarm condition
Alarm condition
• Error message present (alarm LED red)
or
• Device defective or voltage-free (alarm
LED off)
› Relay de-energised
› Contact 41/42 closed
Remarks
Visual inspection
Remarks
Grounding at place of installation
OPM223/253
41
42
43
C07-OxM2x3xx-04-06-00-xx-001.eps
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