HARTING Ha-VIS RF-R500, Assembly Manual

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Ha-VIS RF-R500 - Assembly Manual / Issue 1.0
Terminals
English
3.3 Digital Inputs X5
The optocouplers on Terminal X5 are galvanically isolated from the Reader electronics and
must therefore be externally supplied.
Figure 11 Optocoupler pin-outs IN1 – IN5
Figure 12 Internal and possible external wiring of the optocouplers
Optocoupler input (X5 / IN1-5):
The input LED associated with the optocoupler is connected internally to a series resistor of
500 Ω. For supply voltages of greater than 10V the input current must be limited to max. 20 mA
by means of an additional series resistor (see table 11).
Table 11 shows the necessary external resistors for various external voltages U
ext
.