HRX-OM-Q026-B
Chapter 3 Transport and Setting Up
HRSH Series 3.3 Installation
3-23
3.3.9 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.
z
Configuration
1 master : 1 thermo-chiller
2
3
5
RD
SD
SG
2
3
5
RD
SD
SG
Master This product
Fig. 3-13 Connection of RS-232C
Be sure to lock out and tag out the breaker of the facility power supply
(customer power supply facility) before wiring.
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