Set Point Input - AEG THYRO-A Operating Instructions Manual

The soft start time SST is set at the same time. The also applies to the operating
mode VAR. Depending on AN1 the soft start time has the following value:
AN [1°el] 30 33.7 Œ=33.7 Œ=41.2 Œ=48.7 Œ=56.2 Œ=61.5 Œ=64.5 Œ=67.4 Œ=70.5 Œ=73.5
SST [ms] 0 120
With an ohmic resistance load the poti can be turned to the left limit stop, at
Œ 30°el Thyro-A independently switches to a faster pulse operation with
T = 5 periods without SST.
0
NOTE
In this configuration the terminal X2.7 can be used as an additional
digital "set point value" (24V d.c.). This also enables the controller to
be driven, for example, by a two-position controller.
Analog output (setting guide)
5 V / 10.0mA = 100 °el (Maximum value)
3 V / 6.0mA = 60 °el
1.5V / 3.0mA = 30 °el
1.25V / 2.5mA = 0 °el
3.2.2 Control end set point input
Potentiometer R202 allows the control characteristic to be adapted to the operation.
In central position the factor is = 1, right-hand stop = 2, left-hand stop = 0.
Default setting.
With set point full modulation (20mA, 10V, 5V see 3.1.4) wird U
nal voltage + 10% or I
rms max
type of underlying control.
Analog output (setting guide)
10 V or 20.0mA
5 V or. 10.0mA
2.5 V or. 5.0mA
1.25V or 2.5mA
Factors Π1 result in a shallower characteristic. Full modulation can no longer be
reached. See also Fig. 1 Control characteristic.
140 160 180 200
, i.e. nominal current is reached, depending on the
Factor
= 2
= 1
= 0.5
= 0.25
220 260 300 400
, i.e. nomi-
rms max
Control end
20 V or 40mA (theor.)
10 V or 20mA
5 V or 10mA
2.5V or 5mA
600
77