SEQUENCER WITH
DIFFERENTIAL PRESSURE
SWITCH
Technical brochure
FI 72.0483.0720E
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Sequencer parameters page:
1: T1: pulse time on a declogging SV.
Adjustable from 3 to 255 1/100th seconds (reachable at level 1 or above).
2: T2: idle time between two pulses on declogging SV.
Adjustable from 1 to 255 seconds (reachable at level 1 and above).
3: T2A: idle time between two pulses on declogging SV bis.
T2A time (set shorter than T2) replaces T2 time if accelerated running (if pressure>threshold T2A or if AON
input “accelerated running T2A”)
Adjustable from 1 to 255 seconds (reachable at level 1 and above ).
4: T3: idle time between two declogging cycles.
Adjustable from 0 to 255 minutes (reachable at level 1 and above). If adjusted to 0 : not active.
5: T4: maximum time without declogging cycle.
If the device did not have any declogging cycle for the quantity of hours which is adjusted, the ongoing cycle is
stopped (if stop in cycle) and a declogging cycle is launched. Note: the presence of compressed air is necessary for
this operation.
Remark: T4 time is reset at each pulse on any SV.
Adjustable from 0 to 255 hours (reachable at level 1 and above). If adjusted to 0 : not active.
6: Number of cleaning solenoid valves.
The maximum number of adjustable SV is calculated according to the presence or absence of EV extension
boxes (reachable at level 1 or above).
7: Adjustment of the type of declogging stop, in case we lose the running order :
« End of cycle »: the ongoing cycle ends up.
« On cycle »: cycle stops during its running (at the SV where cycle is, at the end of the T2 time). It will start
again where it was (reachable at level 1 and above).
8: Condition to let the declogging cycle, linked to T4 time, runs.
Two possible choices: « whatever input I1 » or « if I1 Input=1 »
9: displays the current protection level.
10: if press on this area: go back to parameters menu page.
11: if press on this area: go back to main page.
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