LG MASTER-K 120S Series User Manual page 135

Programmable logic controller
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Chapter 7 Usage of Various Functions
3) Parameter setting
(1) Scaling function
The scaling function is the same that of A/D, D/A combination module.
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
*1 : Be sure to use two-core twisted shield wire.
Voltage
Terminal
V0
Analog
I0
Input
COM0
*1
Current
Terminal
V1
Analog
I1
Input
COM1
*1
7-51

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