External Wiring - Mitsubishi MELSEC-Q Q Series User Manual

4 SETUP AND PROCEDURES BEFORE OPERATION

4.4.2 External wiring

(1) Q64AD
1 Use a twisted two core shielded wire for the power wire.
2 Shows input resistance of Q64AD.
3 If current input, always connect to (V +) and (I +) terminals.
4 "A.G." terminal does not normally require wiring. However, it can be used as GND
5 Always use a ground. In addition, ground the FB of the power supply module.
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(a) For voltage input
Signal source 0 to ± 10 V
GND
1 Shielded
(b) For current input
Signal source 0 to ± 20 mA
3
GND
1 Shielded
5
for compatible equipment ground under the following conditions.
(1) When there is a difference in polarity between "A.G" and "GND for compatible
equipment".
(2) As an alternative for 0 V input when only the + side is open on a ± wire.
2
+ 15 V
500 k
V +
I +
V –
500 k
– 15 V
SLD
+ 15 V
2
500 k
V +
I +
250
V –
500 k
SLD
– 15 V
A.G.
FG
4
ANALOG GND
MELSEC-Q
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