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Service
3-1
Reset steam-
service inter-
val
On finishing maintenance work, the service interval is to
be reset
(the service icon is blanked if it was illuminated
before).After maintenance, reset the service interval as
shown below (green LED is still blinking):
3-2
Reset K1
service inter-
val
Main contactor switching cycles are monitored and com-
pared to the life expectancy figure supplied by the part‘s
manufacturer. On a match, reading value r01 is set to
„270“ (and the service icon LED flashes). After changing
the main contactor, parameter 3-2 must be set to „1“ for
a reset of the status message.
3-3
Steam service
interval
Unit control monitors the actual steam amount produced
and compares it with the service steam amount that was
determined by the parameter 3-3 setting. When the two
data match, the service icon is lit. Steam humidifier oper-
ation is not disrupted.
Service rate highly depends on water quality (conductiv-
ity, hardness) and on the amount of steam produced
since the last service. By varying parameter 3-3, the ser-
vice interval may be adjusted to water quality.
Governing
These parame-
ters are only
effective when
parameter 1-2
(control signal)
holds a setting
encorporating
the PI control-
ler.
4-1
Set point r.h.
Parameter 4-1 determines the r.h. set point for control.
4-2
Gain PI con-
troller
Sets the PI controller gain (Xp) [%].Boosting PI-controller
(Xp = 100/E1) [%]
4-3
Integral PI
controller
Sets the PI controller resetting time (Xn).Boosting PI-
controller (Xp = 100/E1) [%]
4-4
Control
curves
(only for elec-
trode steam
humidifiers)
By setting this parameter, electrode driving may be var-
ied between energy-optimised (4-4 = „0“) and load-opti-
mised (4-4 = „1“). In the first case, when a cold start is
run, current is increased to 1.28 times the nominaI cur-
rent. When „load-optimised“ was selected, the increas-
ing factor is only 1.1 in order to not overload the power
supply.
Group
Par.
Denomina-
tion
Description
