Group 13: Analog Inputs - ABB ACS 400 User Manual

Group 13: Analog Inputs

Code Description
1301 MINIMUM AI1
Relative minimum value of AI1 (%). Value corresponds to minimum reference set by parameter 1104
1 or 1107
REF MIN
See Figure 22 on page 65.
1302 MAXIMUM AI1
Maximum value of AI1 (%). Value corresponds to maximum reference set by parameter 1105
or 1108 2
EXT REF
See Figure 22 on page 65.
1303 FILTER AI1
Filter time constant for analog input AI1. As the analog input value changes, 63 % of the change takes place
within the time specified by this parameter.
Note! If you select 0 s for the filter time constant, the signal is still filtered with a time
constant of 25 ms due to the signal interface hardware. This cannot be changed
by any parameters!
Figure 23 Filter time constant for analog input AI1.
1304 MINIMUM AI2
Minimum value of AI2 (%). Value corresponds to minimum reference set by parameter 1104
1107 2
EXT REF MIN
1305 MAXIMUM AI2
Maximum value of AI2 (%). Value corresponds to maximum reference set by parameter 1105
or 1108 2
EXT REF
1306 FILTER AI2
Filter time constant for AI2. Refer to parameter 1303
ACS 400 User's Manual
2 .
EXT REF MIN
.
MAX
.
[%]
100
63
.
.
MAX
Unfiltered signal
Filtered signal
Time constant
1.
FILTER AI
t
EXT REF
EXT
1
EXT REF MAX
1 or
MIN
1
EXT REF MAX
67