Functional Description
20NM50-00 E2
2016-05-17
Page 54
Figure 25.
Switching behavior
4.6.2
Discrete Output
The NM50 provides a photo coupler which is used as a shutter. By default, the shutter is
not mounted, but as an option, the photo coupler outputs have 100k Ohm pull up and
pull down resistors connected to the
Vref_BIN
and
GND_BIN
.
Figure 26.
Photo couplers (shutters) - 2 lines:
Table 13.
Photo coupler characteristics:
Description
Absolute maximum
value
Recommended
maximum value
Collector-emitter voltage
300 V
200 V
Emitter-collector voltage
0.3 V
Collector current
150 mA
120 mA
BIN
log
=
LOW
BIN
log
=
HIGH
Vref_BIN
45%
x
Vref_BIN
35%
x
Vref_BIN
BIN
/
V
BIN
log
=
undefined
GND_BIN
Input
current
<
1mA
Input
current
>
5mA
OPT_P
OPT_N