ABH2015IQE01_ - Installation and Operation Manual
2+
R
R
2-
2+
+
-
2-
V
External potential-free contact
External power supply
The truth table for these inputs is as follows.
Connector
CPU
Potential-free contact
Voltage level
Open
5 V ~ 24 V
“0”
Closed (R < 100 Ohm)
0 V
“1”
Closed (R > 100 Ohm)
1 V ~ 5 V
X
15.4. Digital input connection process
The digital inputs are connected in the following order:
1. Loosen the corresponding packing gland (see Section
“2.7. Description of cable inlets”
), remove the cap
and pass the cable through it.
2. Connect the wiring to terminal J54 DIGITAL INPUT as shown in the previous figures, respecting the
polarities printed on the electronic card.
3. Correctly tighten the packing glands to prevent losses to the protection class, verifying that the wiring is
not taut. Check that the connection is tight.
44
Connecting the digital inputs
Ingeteam
