Output Circuit Configuration - Mitsubishi Electric MELSEC FX2NC-16MT-D/UL Hardware Manual

FX2NC Series Programmable Controllers
6.3.2

Output circuit configuration

1) Very low current load
The triac output circuit inside the PLC has a C-R
absorber for turning OFF. When connecting a very
low current load of "0.4 VA / 100V AC or less, or 1.6
VA / 200V AC or less", please connect a surge
absorber parallel to the load. Select the rated voltage
of the surge absorber suitable to the load used. Refer
to the table below for other specifications.
Item
Electrostatic capacitance
Resistance value
2) Interlock
For loads such as forward/reverse contactors,
etc., where a hazardous condition could result if
switched ON simultaneously, an exter nal
interlock should be provided for interlocking the
PLC's internal programs as shown to the right.
Guide
Approx.0.1 µF
Approx.100 to 200 Ω
PLC output
element
Very low current load
PLC output
Surge
absorber
Inter- Limit of normal
lock rotation
Limit of reverse
rotation
6-15
Outputs 6.
Normal
rotation
Reverse
rotation