Operation AC2217
Check the safe functioning of the unit. Display by LEDs:
• LEDs yellow I-1...4 on:
respective channel is activated
analogue signal in the measuring range or
no sensor connected (it cannot be differ-
entiated whether the 0 V signal is applied
or whether no sensor is connected)
(channel 1 is always activated)
• LEDs yellow I-1...4 flashing: analogue signal outside the measuring
range (outside range)
• LEDs yellow I-2...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*
• LED yellow DIAG
internal diagnosis
DIAG ON
no error
DIAG flashes
internal error (replace module)
DIAG OUT
internal error (replace module)
* Periphery fault
A periphery fault is displayed:
• if at least one of the analogue signals is outside the value range
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