Riken Keiki RS-400 Series, Operating Manual

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3 How to Connect Wire 3-1. Description of terminal plate
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M4 is used as the terminal screws for the terminal plate. Attach an insulated ring terminal with insulating
coating for M4 to the tip of a cable for wiring.
NOTE
If you are considering the use of the RS-485 communication function, contact RIKEN KEIKI.
NOTE
Contact output 3 (SSR)
•
Contact output 3 of the calorimeter makes SSR output.
• AC power supply is required to drive the contact output.
Converting SSR contact into dry contact
Add an external relay.
Contact output 3 of the calorimeter makes SSR output. (Load specification: 75 - 264 VAC, 20 mA - 1 A)
It is not possible for a DC input unit to obtain SSR output.
In this case, add an external AC relay to convert SSR contact output into dry contact output.
<Wiring Diagram>
• Install an AC relay in the non-hazardous area.
• Use a coil with specified voltage of 75 - 264 VAC and current of 20 mA - 1 A for the relay.
E.g.) MK3ZP (OMRON): Rated current 23.1 mA (100 VAC, 60 Hz)
OHC-800
(5) (6)
Relay
~
~
100 VAC
Input unit
Hazardous location
Non-hazardous location