mensor PCS 400 - Solenoid Valve Truth Table (Table 9.5); Table 9.5 - Solenoid Valve Truth Table

SOLENOID VALVE TRUTH TABLE
Table 9.5 – Solenoid Valve Truth Table
Valve
Mode
L1
Coarse
Supply
L2
Coarse
Exhaust
L3
Output
Shutoff
L4
Vent
L5
Control
Shutoff
*L6
2nd Xdcr
Shutoff
POWER OFF – – – – – –
STANDBY – 1 – – – –
MEASURE – 1 ON – – 3
PRE-CONT – – – – ON 3
CONTROL 2 2 ON – ON 3
VENT – – ON ON ON 3
INTERNAL
LEAK CHK
––––ON3
EXTERNAL
LEAK CHK
––ON–ON3
NOTE: All valves are normally closed (NC).
* = L6 included only on multiple range units. (See schematics near the end of
this Appendix section)
– = OFF
1 = ON for versions 2.00 to 2.11. OFF for all other versions.
2 = ON or OFF depending on commanded pressure.
3 = ON if system pressure is less than or equal to address 01 transducer range;
OFF otherwise.
PCS 400 APPENDIX
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