Chapter 5 Wiring
Wiring consideration
5-13
4.3.3 Driving a light load
A semiconductor relay can be applied as an interface to drive a light-loaded machine.
4.3.4 Lifespan of relay
The lifespan of output relay varies with different loads.
Note 1: The data in the figure are rated ones. The ambient temperature will affect the lifespan of
relay.
Note 2: Mechanical lifespan of the relay will be over 200 million times.
Note 3: Generally, the lifespan of relay could be over 100,000 times as the current is within 2A.
4.3.5 Wiring consideration for TP03 HT type PLC
When using TP03 HT type PLC(TP03-20HT-A,TP03-30HT-A,TP03-40HT-A,TP03-60HT-A),the
output terminal Y0 and Y1 share one common terminal COM0,the COM0 and USER 0V are
connected internally in TP03 PLC. Be sure not to connect USER 24V and COM0,the other COM
and USER 0V are not connected internally in TP03 PLC.
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