Actual signals and parameters
73
13.03 SCALE AI1 Scales analog input AI1.
Example: The effect on speed reference
REF1 when:
- 11.05 EXT REF MAXIMUM = 1500 rpm
- Actual AI1 value = 4 V (40% of the full
scale value)
- 13.03 SCALE AI = 100%
50…150% Scaling range. 1 = 1%
13.04 FILTER AI1 ms Defines the filter time constant for analog input AI1.
Note: The signal is also filtered due to the signal interface hardware
(10 ms time constant). This cannot be changed by any parameter.
0…10000 ms Filter time constant. 1 = 1 ms
13.05 INVERT AI1 Activates/deactivates the inversion of the analog input AI1.
NO No inversion 0
YES Inversion active. The maximum value of the analog input signal
corresponds to the minimum reference and vice versa.
65535
13.06 MINIMUM AI2 Defines the minimum value for analog input AI2. When used as a
reference, the value corresponds to the reference minimum setting.
0 mA Zero milliAmps.
Note: The program cannot detect a loss of analog input signal.
1
4 mA Four milliAmps. 2
TUNED VALUE The value measured by the tuning function. See selection TUNE. 3
TUNE The value measurement triggering. Procedure:
1. Connect the minimum signal to input.
2. Set the parameter to TUNE.
Note: The readable range in tuning is 0 mA to 20 mA.
4
13.08 SCALE AI2 See 13.03 SCALE AI1. 1 = 1%
13.09 FILTER AI2 ms See 13.04 FILTER AI1 ms. 1 = 1 ms
13.10 INVERT AI2 See 13.05 INVERT AI1. 0 or 65535
13.11 MINIMUM AI3 See 13.06 MINIMUM AI2. 1…4
13.13 SCALE AI3 See 13.03 SCALE AI1. 1 = 1%
13.14 FILTER AI3 ms See 13.04 FILTER AI1 ms. 1 = 1 ms
13.15 INVERT AI3 See 13.05 INVERT AI1. 0 or 65535
No. Name/Value Description FbEq
40%
1500 rpm 10 V
0 V
600 rpm
AI1
63
%
T
t
Filtered Signal
Unfiltered Signal
O = I · (1 - e
-t/T
)
I = filter input (step)
O = filter output
t = time
T = filter time constant
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