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MELSEC-A
4 SETUP AND PREPARATION BEFORE OPERATION
4.9.2 Wiring of module with external equipment
CH.1
Motor drive
unit or like
D/A
conversion
CH.1 V+
NC
CH.1 COM
NC
CH.8
CH.8 V+
NC
CH.8 COM
NC
1
2
3
4
1
2
3
4
CON8
CON1
GND
to
2k
1M
GND
to
2k
1M
Motor drive
unit or like
2
1
1 Use a two-core twist shielded line for the wiring.
2 If noise or ripples occur in the external wiring, connect a 0.1 to 0.47µF capacitor (25V or
higher voltage-resistant product) to the input terminals of the external device.
POINT
• D/A conversion values are fluctuated by self-heating within approx. 30 minutes
after power is turned ON.
• Do not insert the one-touch connector plug for I/O of the one-touch connector
type/connector type compact remote I/O unit into the one-touch connector for
analog I/O accidentally.
Doing so can cause the module to be damaged.