Moeller DF51 - Page 94

Setting parameters
10/05 AWB8230-1541GB
90
Reference current
Analog input OI
The external reference current signal can be specifically matched
with parameters PNU A101 to A106, which are described below.
You can assign the output frequency to a user-definable current
reference value range.
Using PNU A016 you can adjust analog reference signal filtering.
Figure 88: Reference current
0 %
0 mA
100 %
20 mA
f
[Hz]
A104A103
A101
A102
A105 = 00
f
max
A004
A105 = 01
PNU Name RUN b031
= 10
Value Function DS
A101 Analog input
(OI-L),
frequency at
minimum
reference value
– j 0 – 400 Hz Here, the frequency that corresponds to the minimum reference current
under PNU A103 is set.
0.0
A102 Analog input
(OI-L),
frequency at
maximum
reference value
0 – 400 Hz Here, you can set the frequency that corresponds to the maximum
reference current under PNU A104.
0.0
A103 Analog input
(OI-L),
minimum
reference value
(offset)
0 – 100 % The minimum reference value entered here is a percentage of the
highest possible reference current (20 mA).
0.
A104 Analog input
(OI-L),
maximum
reference value
(offset)
0 – 100 % The maximum reference value entered here is a percentage of the
highest possible reference current (20 mA).
100.
A105 Analog input
(OI-L),
selection of
starting
frequency
applied to the
motor at
minimum
reference value
Determines the behaviour at reference values below the minimum reference value. 01
00 Value from PNU A101
01 0Hz
A016 Analog input –
filter time
constant
To reduce the inverter’s response time to reference value changes at analog input O or OI,
and thereby determine the degree to which analog signal harmonics are filtered, you can
enter a value between 1 and 8 here.
8
1 Minimal filtering effect/fast response to reference value changes
…
8 Maximum filtering effect/slow response to reference value changes