IFM Electronic AS-interface AC2218 Notice De Montage page 11

Electrical connection
Connection of the analogue module 0...20mA - AC2218
Connection of an actuator (0...20mA) without separate voltage supply
analogue module actuator without
O+
C1...C4
0V
O-
Connection of an actuator (0...20mA) with intrinsic supply
analogue module actuator with
O+
C1...C4
0V
O-
Connection of an actuator (0...20mA) with separate 24V supply
analogue module actuator with
O+
C1...C4
0V
O-
separate supply
+
-
intrinsic supply
+
-
PELV supply
without ground
connection
separate supply
U+
I/U+
I/U-
U-
A 2-wire actuator is connected via
the terminals C1...C4 and 0V.
The terminals O+ and O- are not
used for an actuator without sepa-
rate voltage supply.
An actuator with intrinsic supply
(e.g. ammeter) is connected via the
terminals C1...C4 and 0V.
The terminals O+ and O- are not
used for an actuator with intrinsic
supply.
An actuator with separate supply is
connected to the external 24V via
the terminals O+ and O-.
The signal can be taken from the
terminals C1...C4 and 0V.
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