Moeller DF5 series - Automatic Restart After Fault Settings

Setting Parameters
09/01 AWB8230-1412GB
94
Temperature control
With the flow control in the previous example, the frequency
inverter’s output frequency increases if the feedback signal is less
than the setpoint and falls if the feedback signal is greater than the
setpoint. With temperature control, the opposite behaviour must
be implemented: if the temperature is above the setpoint, the
inverter must increase its output frequency to increase the speed
of the connected fan.
The following figure contains an example for temperature control
with the two setpoints 20 and 30 °C:
Figure 92: Example for temperature control
w: Setpoint value, 4 Bit digital
x: Feedback actual value (50 °C at 10 V)
B1: Measured value converter
P1: Temperature sensor
a Fan
PNU
Meaning in PID control mode Value Notes
F01 Setpoint 20 Direct input of “20 °C”, as the scaling
factor has been set
A01
Frequency setpoint definition 02 Keypad
A11
Feedback percentage actual value for lower acceptance threshold
(Units: %)
100 100 %
A12
Feedback percentage actual value for upper acceptance threshold
(Units: %)
0 0%
A13
Lower acceptance threshold for voltage or current on the actual value
input (in %)
0 0%
A14
Upper acceptance threshold for voltage or current on the actual value
input (in %)
100 100 %
A21
Digitally adjustable setpoint value 1 30 30 °C
A71
PID control active/inactive 01 PID mode active
A72
P component of the PID controller – Application dependent
A73
I component of the PID controller –
A74
D component of the PID controller –
A75
Setpoint factor of the PID controller 0.5 100 % at 50 °C
A76
Input actual value signal for PID controller 01 Feedback from O-L terminal
w
B1
P1
x
0... +10 V H
G1
a
M
3
~
100%
0
4 V
40 %
10 V
100 %
60%
40%
6 V
60 %
20 °C
50 °C
30 °C