
GOSSEN-METRAWATT GMBH
25
Controller types
See page 28 for
Parameters
Code
Controller Type
Remarks
Limit monitor
Switching output I is active, if act. value < actual set point, switching output II is active, if actual value > actual
set point +
dbnd
. The switching hysteresis is
HYST
. A change of the switching state can be made every
tc
.
Positioner
Output of a constant positioning signal to switching output I, if
Y ST
> 0, to switching output II, if
Y ST
< 0.
The positioning cycle is
tc
.
No alarm functions.
2-state controller „Heat“
A PDPI control algorithm without overshoot controls the switching output I in order to increment / decrement the
actual value. The positioning cycle is at least
tc
.
2-state controller „Cool“
Three-state controller
A PDPI control algorithm without overshoot controls the switching output I in order to increment the actual
value and/or the switching output II to decrement the actual value. The positioning cycle is at least
tc
.
The deadband
dbnd
suppresses a change between "Heat" and "Cool", without offset.
Three-state controller
Water cooling
The regulation ratio of the switching output II is matched to the non-linear behavior of a water cooler.
The positioning cycle is
tc
.
Step controller
A PDPI control algorithm without overshoot controls the switching output I and/or II in order to increment/decre-
ment the actual value. The positioning pulse width is
tc
. The deadband
dbnd
is symmetric to the set point.
Содержание R2600
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