Offset Function - SMC Networks HRZ002-WS-F Operation Manual

HRX-OM-X010
Chapter 8 Appendix

8.4 Offset Function

8.4 Offset Function
8-14
Potential deviations in temperature between this system and your system may be
concerned depending on the installation environment. The offset function falling
into three types (MODE1 to 3) is assigned to calibrate deviations in temperature.
See the following descriptions for the offset function. See section 5.3.16"Initial
Setting screen 1"page5-18" for setting.
TEMP PV value, which is displayed on the Status screen, is output as circulating
fluid temperature data in terms of communication.

When MODE1 is selected
This mode is used to exercise temperature control to allow the discharge
temperature of the circulating fluid to be "TEMP SP value + OFFSET value".
TEMP PV value denotes the discharge temperature of the circulating fluid.
E.g.: TEMP SP value: +20 deg C, OFFSET value: +2 deg C

Circulating fluid discharge temp.:

When MODE2 is selected
This mode is used to exercise temperature control to allow the discharge
temperature of the circulating fluid to be "TEMP SP value".
TEMP PV value denotes "Circulating fluid discharge temp. value + OFFSET
value".
E.g.: TEMP SP value: +20 deg C, OFFSET value: +2 deg C

Circulating fluid discharge temp.:

When MODE3 is selected
This mode is used to exercise temperature control to allow the discharge
temperature of the circulating fluid to be "TEMP SP value + OFFSET value".
TEMP PV value denotes "Circulating fluid discharge temp. value - OFFSET
value".
E.g.: TEMP SP value: +20 deg C, OFFSET value: +2 deg C

Circulating fluid discharge temp.:

When OFF is selected
If no mode is selected, temperature control is conducted to allow the discharge
temperature of the circulating fluid to be "TEMP SP value".
:
+22 deg C, TEMP PV +22 deg C
:
+20 deg C, TEMP PV +22 deg C
:
+20 deg C, TEMP PV +20 deg C
HRZ Series