SAMWONTECH
1st Edition of TEMP880S IM : Sep. 21. 2005 Page 15 / 101
1.4.2.8 External contract point (DI) wiring
▶ Turn off TEMP880S mainframe power and external power supply when wiring the external
▶ contact point input due to danger of electric shocks.
▶ Use voltage free contact point (relay contact point) for external contact point.
▶ For turned of terminal voltage (about 5V) and turned on present (about 1mA), use voltage free contact
▶ point that has enough switch ability.
▶ Use open collector which has under 2V and 100μA present when turned on
RELAY Contact Point Input TRANSISTOR Contact Point Input
Caution
DI1
DI2
DI8
I/O1 BOARD
DI_COM
•
•
•
DI1
DI2
DI8
I/O1 BOARD
DI_COM
•
•
•
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