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Chapter 7 Usage of Various Functions
7-58
5) Scaling function
The scaling function is the same that of A/D, D/A combination module.
6) 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.
Less than
510
Ω
*
1
I
+
I
−
GND
510
Ω
*
1
I
+
I
−
GND
CH0
CH3
-15V
The common grounding with other devices is permitted when D/A conversion module is used as current
output type.
.
Remark
CH 3
Devices
CH 0
2
1
+15V
AGND
DC +24V
DC 0V
5
D/A
6
11
D/A
12
DC/DC
Converter