Mitsubishi Electric MELSEC iQ-F Series User Manual page 201

Wiring precautions
■Protection circuit for load short-circuiting
A short-circuit at a load connected to an output terminal could cause burnout at the output device or the PCB.
To prevent this, a protection fuse should be inserted at the output.
Load
Y0
Fuse
COM1
■Minute current load
C-R absorbers are connected in parallel at the triac output circuit for turning off the triac. When a minute current load of 0.4VA
or less/100VAC or 1.6VA or less/200VAC is connected, a surge absorber must be connected in parallel with the load. Select a
surge absorber with voltage rating that is suitable for the output used. For other specifications, refer to the following.
Minute current load
Surge absorber
Standard
Electrostatic capacity: Approx. 0.1F
Resistance value: Approx. 100 to 200
■Interlock
For loads, such as forward/reverse contactors, where a hazardous condition could result if switched on simultaneously, an
external interlock should be provided for interlocking along with an interlock in the programmable controller program as shown
below.
Interlock
Forward rotation limit
Reverse rotation limit
Programmable controller output element
■In-phase
Programmable controller output contacts (*1) should be used in an "in-phase" manner.
*1
OK
*1
*1
NG
Terminal
module
Forward
rotation
Reverse
rotation
*1
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13 WIRING
199
13.6 Output Wiring