HRX-OM-M090 
Chapter 3   Transport and Setting Up 
 
HRS Series  3.7 Wiring of external switch 
 
 
3-23
 
3. Plug the prepared connector in to the contact input/output connector that is on the back 
of the thermo-chiller.
 
 
Fig 3-18 Connecting the connector 
 
3.7.3 Setting items 
Table 3-9 shows the setting items of the external switch. For details, refer to 
5.18 Communication function. 
 
Table 3-9 Setting list of the external switch 
Displa
y 
Item 
Initial value 
(Default setting)
Example
∗
 
Reference 
page 
Category 
 
Communication mode  LOC  LOC 
 
Contact input signal 1  RUN  SW_A 
 
Contact input signal 1 type ALT  ALT 
 
Contact input signal 1 
delay 
timer (time delay) of 
reading 
0 0 
 
Contact input signal 1 OFF 
detection timer 
0 2 
 
Contact input signal 2  OFF  OFF 
 
Contact input signal 2 type ALT  - 
 
Contact input signal 2 
delay 
timer (time delay) of 
reading 
0 - 
 
Contact input/output communication 
Contact input signal 2 OFF 
detection timer 
0 - 
5.18 
Communication 
setting menu 
∗ Example: Connect flow switch A to contact input signal 1 in local mode.