VS070QS-1618MDM1 Integrated Machine Product overview
202403 (V1.0) 17
The external load wiring of the relay output circuit is shown as follows.
LOAD
LOAD
COM4
Y21
Y04
AC
DC
COM2
K1
K14
AC
DC
Internal
circuit
2.3.6.3 Relay output reliability protection circuits
For DC inductive loads, it is necessary to connect a flyback diode in parallel. If the
flyback diode is not connected, the service life of contacts will be significantly
reduced due to the long-term effect of the counter electromotive force. Use a diode
that allows the reverse withstand voltage to exceed the load voltage by 5 to 10 times
and the forward current to exceed the load current. The AC inductive load
connected in parallel with a surge absorber will reduce noise and prolong the
service life of the output relay.
Note:
The flyback diode shall comply with the
following requirements:
Note:
The surge absorber shall comply with the
following requirements:
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