Parameter
Range
Default
Usage
Parameter 4-19
Max Output
Frequency
0.0–400.0 Hz
100 Hz
Enter the maximum output frequency value. If
parameter 4-19
Max Output Frequency
is set lower than
parameter 4-14 Motor
Speed High Limit [Hz]
,
parameter 4-14 Motor Speed High Limit
[Hz]
is set equal to
parameter 4-19 Max Output Frequency
auto-
matically.
Parameter 6-20
Terminal 54
Low Voltage
0.00–10.00 V
0.07 V
Enter the voltage that corresponds to the low reference value.
Parameter 6-21
Terminal 54
High Voltage
0.00–10.00 V
10.00 V
Enter the voltage that corresponds to the high reference val-
ue.
Parameter 6-22
Terminal 54
Low Current
0.00–20.00 mA
4.00 mA
Enter the current that corresponds to the low reference value.
Parameter 6-23
Terminal 54
High Current
0.00–20.00 mA
20.00 mA
Enter the current that corresponds to the high reference val-
ue.
Parameter 6-24
Terminal 54
Low Ref./Feedb.
Value
-4999–4999
0
Enter the feedback value that corresponds to the voltage or
current set in
parameter 6-20 Terminal 54 Low Voltage/parame-
ter 6-22 Terminal 54 Low Current
.
Parameter 6-25
Terminal 54
High Ref./
Feedb. Value
-4999–4999
50
Enter the feedback value that corresponds to the voltage or
current set in
parameter 6-21 Terminal 54 High Voltage
/
param-
eter 6-23 Terminal 54 High Current
.
Parameter 6-26
Terminal 54 Fil-
ter Time Con-
stant
0.00–10.00 s
0.01
Enter the filter time constant.
Parameter 6-29
Terminal 54
mode
[0] Current
[1] Voltage
[1] Voltage
Select if terminal 54 is used for current or voltage input.
Parameter
20-81 PI Nor-
mal/Inverse
Control
[0] Normal
[1] Inverse
[0] Normal
Select
[0] Normal
to set the process control to increase the
output speed when the process error is positive. Select
[1] In-
verse
to reduce the output speed.
Parameter
20-83 PI Start
Speed [Hz]
0–200 Hz
0 Hz
Enter the motor speed to be attained as a start signal for com-
mencement of PI control.
Parameter
20-93 PI Propor-
tional Gain
0.00–10.00
0.01
Enter the process controller proportional gain. Quick control
is obtained at high amplification. However, if amplification is
too high, the process may become unstable.
Parameter
20-94 PI Inte-
gral Time
0.1–999.0 s
999.0 s
Enter the process controller integral time. Obtain quick con-
trol through a short integral time, though if the integral time
is too short, the process becomes unstable. An excessively
long integral time disables the integral action.
Programming
Operating Guide | VLT® HVAC Basic Drive FC 101
AQ275641848264en-000101 / 132R0078
54 | Danfoss A/S © 2019.11
Содержание VLT HVAC Basic Drive FC 101
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