SMC Networks HRW002-H, Operation Manual

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HRX-OM-K003
Chapter 8 Appendix
8.4 Offset Function HRW Series
8-10
8.4.1 Example of offset function
When the discharge temperature of the circulating fluid is at 30°C, heat is
dissipated by 1°C to allow the circulating fluid in your system to be 29°C. Under
the above condition, the following process is to be performed with the utilization of
MODEs 1 to 3.
Figure 8-4 Example of Offset Function

When MODE1 is selected
This mode enables this system to exercise temperature control to obtain 31°C
(TEMP SP value +OFFSET value), with OFFSET value set at 1°C. Once the
discharge temperature of the circulating fluid becomes 31°C, 1°C-thermal
dissipation is assured to allow the circulating fluid in your system to be 30°C.
TEMP SP value is obtained for your system.
Note that “31°C” is recorded in TEMP PV and communication data.
Figure 8-5 When MODE1 is selected
1 ℃
This system Your system
Discharge temp.:
31 ℃
Circulating fluid temp. in
your system: 30
℃
TEMP PV 31 ℃
TEMP SP 30 ℃
OFFSET 1 ℃
External communication
Communication data
TEMP PV 31 ℃
TEMP PV
31
℃
Heat dissipation:
1
℃
This system Your system
Discharge temp.:
30 ℃
Circulating fluid temp. in
your system: 29 ℃
TEMP PV 30
℃
TEMP SP 30 ℃
External communication
Communication data
TEMP PV 30
℃
Heat dissipation: