FX2NC Series Programmable Controllers Outputs 6.
6-15
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.
2) Interlock
Item Guide
Electrostatic capacitance Approx.0.1
µ
F
Resistance value Approx.100 to 200
Ω
For loads such as forward/reverse contactors,
etc., where a hazardous condition could result if
switched ON simultaneously, an external
interlock should be provided for interlocking the
PLC's internal programs as shown to the right.
Very low current load
Surge
absorber
PLC output
Inter-
lock
Normal
rotation
Reverse
rotation
Limit of normal
rotation
PLC output
element
Limit of reverse
rotation
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