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Mitsubishi Electric NZ2GF12A4-16D User Manual Page 142

Cc-link ie field network waterproof/dustproof remote i/o module.
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■Action
Take one of two actions shown below.
• To suppress the back electromotive force, connect a diode parallel to the load where the back electromotive force has been
generated.
[3]
Sink output
+ Back electromotive force -
Load
• Provide another current path by connecting a diode across positive and negative of the load power supply. When taking the
action described in Example 1 at a time, connect a diode parallel to C1 and R1.
+ Back electromotive force - [3]
Sink output
Y0
ON
Y1
OFF
COM-
C1 R1
CTL+
Example 1
- Back electromotive force + [3]
Source output
Y0
ON
Y1
OFF
COM+
C1 R1
CTL-
Example 1
D1:
Reverse voltage VR (VRM)
*2
Forward current IF (IFM)
*1 Approximately 10 times as large as the rated voltage in the specifications
Example: 24VDC  Approximately 200V
*2 Twice as much as the maximum load current (common) in the specifications or more
Example: 2A/1 common  4A or more
11 TROUBLESHOOTING
11.6 Examples of Troubles with the I/O Module
Load
[2]
Load
[1] Shut off
D1
Load
[2]
Load
[1] Shut off
D1
*1
Source output
- Back electromotive force +
Load

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