Hioki RM3544 - 8.3 Internal Circuitry

8.3 Internal Circuitry
104
• Use ISO_COM as the common pin for both input and output signals.
• If a high current will flow to common wiring, branch the output signal common wiring and
input signal common wiring from a point lying close to the ISO_COM pin.
8.3 Internal Circuitry
NPN Setting
PLC, etc.
PLC, etc.
Output
Input
Common
Do not connect external power to pin 8.
Zener Voltage 30 V
Internally Isolated Common Signal Ground
RM3544, RM3544-01
Common
* Isolate from the instrument protective ground.
Internally
isolated power