15
www.eltherm.com
15
www.eltherm.com
Setpoint controller (W1) with continuous output
The actual value x is recorded via a temperature sensor or a
standard signal and converted into a digital signal. Before this
signal is sent to the controller, the actual value is corrected.
The corrected actual value is shown on the display.
The setpoint w is set on the controller and shown on the
display.
The size of the output signal can be limited by a minimum
and maximum value on the controller.
The hysteresis h is set on the controller. When controlling with
a continuous output, the hysteresis indicates the range in
which the output signal varies between 0/4mA and 20mA or
0/2V and 10V.
The control difference x
d
= w - x is formed in the controller..
If the control difference is x
d
< h, the output emits a signal up
to 20mA or 10V.
If the control difference is x
d
≥ h, the output emits a signal of
20mA or 10V.
If the control difference is x
d
< 0, the output emits a signal of
0/4mA or 0/2V.
Structure switch settings
No.
description
selection option
S01
Selection actual
value X1
[1] = Pt100, 3-wire (AE1)
2 = Pt100, 2-wire (AE1)
3 = thermocouple type J (AE1)
4 = thermocouple type K (AE1)
5 = voltage input (AE3)
6 = current input (AE3)
S03
Select setpoint W
[1] = Fixed value W1
S04
Selection of output
function controller
4 = continuous control
S05
Selection swit-
ching output
3 = analog output clocked
Parameters used
No. description
factory
setting
Own
setting
P01 Input variable X1
Display only
P03 Reference variable W
Display only
P04 Current display
Display only
P05
output level at the proportional
controller/ steady controller
Display only
P10 Control setpoint 1 (=W1)
5
P11 Switching hysteresis
2
P12 min. standstill time K1
0
P13 largest adjustable setpoint 1
950
P14 smallest adjustable setpoint 1
-50
P15 sensor correction 1
0
P16
Over temperature alarm 1
999
P17 low temperature alarm 1
-99
P18 Lower analog scaling value
0
P19 Upper analog scaling value
100
P28
power monitoring
load output
0
P75
Low Level mode analog in-
puts/ outputs
0
P76
min. output signal analogue
output
0
P77
max. output signal analogue
output
100
