IFM Electronic AT-interface AC2516 Notice De Montage page 16

• LEDs yellow AI-2...AI-4 out:
respective channel is not activated
• LED green PWR on:
AS-i voltage applied
• LED green AUX on:
external 24 V voltage applied
• LED red FAULT on:
AS-i communication error, e.g. slave address 0
• LED red FAULT flashes:
periphery fault*
* Periphery fault
A periphery fault is displayed:
• if at least one of the analogue signals is outside the value range
Measuring range of the analogue input modules
The measuring ranges, the states of the LEDs and their meaning are
indicated in the following tables:
Analogue input module 4 ... 20 mA - AC2516, AC2566
Range
4 ... 20mA
< 1 mA
1 mA ...
3.999 mA
4 mA ...
20 mA
20.001 mA ...
23 mA
> 23 mA
16
Units
dec.
32767
1000 ... 3999
4000 ... 20000
20001 ... 23000
32767
Units
hex.
7FFF
03E8 ... 0F9F
0FA0 ... 4E20
4E21 ... 59D8
7FFF
LED AI1...AI4
analogue
flashes
on
on
on
flashes
Meaning
wire break
below nominal
range
nominal range
above nominal
range
outside range