< 10. Other Functions >
10-20
IM 11M12D01-01E
10.5.2 Setting Contacts for Operating Solenoid Valves
The same contacts used for operating solenoid valves to perform channel switching during Auto-
calibration (SV-CH1 to SV-CH8) are also used for starting and stopping blow back gas. Therefore,
when both blow back and Auto/Semi-auto calibration are used, contact outputs used for operating
solenoid valves need to be assigned as shown in Figure10.24. Refer to Figure10.26 for blow back
timing chart.
For wiring and piping of blow back solenoid valves, refer to Subsection 4.1.5, “Blow back piping” and
Section 5.3, “Wiring and Piping Examples.”
SV-CH 1
SV-CH 2
CH1 detector
CH2 detector
N.C.
N. O
AV550G
F10-24E.ai
Solenoid
valve switch
Blow back gas
Blow back gas
CAL gas
CAL gas
Figure 10.24
<Setting procedure>
1) From the basic panel display touch Setup key; on the [Execution/Setup] display which appears,
select [Commissioning] then [Contact setup].
2) Select a contact (Ex. [Output contact 3]) that is not already assigned to another function, then
select [Others].
3) For this contact, turn [Blow back] to [ON].
Enter
F10-25E.ai
Contact3
Others
Warm up:
OFF
Range change:
OFF
Maintenance:
OFF
Calibration:
OFF
Indication check:
OFF
Blow back:
OFF
Third gas:
ON
Figure 10.25 Assigning Solenoid Valve Switching Contact
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