Operating Instructions
SILAS
Controller for Zones 2 and 22
Version 2.00
Page 20 of 28
SILAS_E_110806.doc Operating Instructions for the SILAS Controller
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Technical data are subject to change
9.2
S 2 Rotary Switch
The following functions are assigned to the respective position of the S 2 rotary switch:
Aktion
Position Function
Display
Purge time is
needed
Purge time
started, if P1
is reached
Purge time
stopped, if
P4 is
reached
K2 switch
off, if the
pressure
falls below
the value of
P1
PRG
YES YES NO NO NO
PRG
YP1 YES YES NO NO
PRG
YP2 YES YES NO YES
PRG
YP3 YES YES YES NO
1 Pre-purge
function
PRG NO
NO
NO
NO
NO
2
Pre-purging time
(min: sec)
P T
Pre-purging time if a pre-purging cycle PRG Y _ is activated
3
Pressure value P 1
(mbar)
P 1
“MIN” disconnection threshold
4
Pressure value P 2
(mbar)
P 2
a)
Pre-alarm
b)
If a purge valve is connected, the purge valve switches
the purging-air nozzle on briefly if the value falls short of
P 2 during operation.
5
Pressure value P 3
(mbar)
P 3
Pressure value at which the purging time counts down if the
zone 2 function is selected.
6
Pressure value P 4
(mbar)
P 4
“MAX” disconnection threshold. When the “P 4” is reached, K
2 relay switches off for the duration of the increased
overpressure.
