Phoenix Contact EV Charge Control Basic, User Manual

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Wiring the outputs and inputs
106377_en_04 PHOENIX CONTACT
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6.2 Inputs
The inputs are designed as voltage dividers for a voltage from 0 V to +15 V. A current of
< 1 mA flows across the resistor network at 12 V. Logic 0 is reliably detected at a voltage of
0 V to +3 V. Logic 1 is reliably detected at a voltage of +9 V to +15 V.
Figure 6 - 4 Assignment of the logic states to the voltages
The function of the digital inputs can be configured via Modbus/RTU. For details,
please refer to “Modbus description” on page 53 .
The circuits of the inputs are only examples. The inputs with switches can be supplied by
the internal voltage source as well as by an external 12 V voltage source which uses GND
as the common reference point. The inputs can also be controlled by an external higher-
level controller with 12 V outputs. Here too, GND is used as the common reference point.
Figure 6 - 5 Inputs at switches with internal supply
Figure 6 - 6 Inputs at switches with external supply
18
15
12
9
6
3
3
1 0
V
Power
L
N
PE
IO
GND
12 V
12 V a
EN XR
ML
CCR
IN
OUT
ERR
CHG CON
Power
L
N
PE
IO
GND
12 V
12 V a
EN XR
ML
CCR
IN
OUT
ERR
CHG
CON
GND
12 V DC