Operating instructions

77
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:
With an ohmic resistance load the poti can be turned to the left limit stop, at
 30°el Thyro-A independently switches to a faster pulse operation with
T
0
= 5 periods without SST.
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
rms max
, i.e. nomi-
nal voltage + 10% or I
rms max
, i.e. nominal current is reached, depending on the
type of underlying control.
Analog output (setting guide)
Factor
Control end
10 V or 20.0mA = 2 20 V or 40mA (theor.)
5 V or. 10.0mA = 1 10 V or 20mA
2.5 V or. 5.0mA = 0.5 5 V or 10mA
1.25V or 2.5mA = 0.25 2.5V or 5mA
Factors  1 result in a shallower characteristic. Full modulation can no longer be
reached. See also Fig. 1 Control characteristic.
AN [1°el] 30
0 120 140 160 180 200 220 260 300 400 600
33.7 =33.7 =41.2 =48.7 =56.2 =61.5 =64.5 =67.4 =70.5 =73.5
SST [ms]