LG Electronics 120S user manual Wiring, Analog output

Chapter 7 Usage of Various Functions

4) Wiring

(1) Caution for wiring

•Make sure that external input signal of the mixture module of AC and analog I/O is not affected by induction noise or occurs from the AC through using another cable.

•Wire is adopted with consideration about peripheral temperature and electric current allowance. Thicker than Max. size of wire AWG22 (0.3 ㎟) is better.

•If wire is put near to high temp. radiated device or contacted with oil for a long time, it may cause of electric leakage so that it gets broken or miss-operation during wiring.

•Be sure to connect with care of polarity while connecting to external 24V DC power supply.

•In case of wiring with high voltage line or generation line, it makes induction failure so then it may cause of miss-operation and out of order.

(2)Wiring example

a)Analog input

Voltage input

+

input

*1

Terminal	Current input
V0	+
I0	input
COM0
	*1

Terminal

V1

I1

COM1

b) Analog output

V+

V−

I+

I−

Voltage output

2K~1 ㏁

*1

GND

Current output	Less than
	510Ω
*1	GND

*1 : Be sure to use two-core twisted shield wire.

* Be careful to use that analog output is 1 channel.

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