HRX-OM-W058
Chapter 3 Transport and Setting Up
HRS-R Series
3.3
Installation
3-19
3.3.7
RS-232C Communication wiring
Serial communication RS-232C, operation start/stop, setting and reading of
circulating fluid temperature, and reading of alarm condition can be done by
remote control.
Refer to the Communications Operation Manual for more details.
Wiring of communication cable
Be sure to wire as shown in the figure below.
Configuration
1 master : 1 thermo-chiller
Do not connect any wire to other PIN numbers.
Fig. 3-12 Connection of RS-232C
2
3
5
R D
S D
S G
2
3
5
R D
S D
S G
Master
This product
Be sure to shut off the breaker of the facility power supply (the user’s
machine power supply) before wiring.
