Operating instructions

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5.1.8 Adjustment
As a result of component tolerances, it can be necessary to ad
j
ust the analo
g
input.
Parameter
Adjustment 568 is used for this purpose.
Operation mode Function
0 - no adjustment Normal operation
1 - Adjustment 0 V / 0 mA
A
d
j
ustment of the measurement with an analo
g
signal of 0 V or 0 mA.
2 - Adjustment 10 V / 20 mA
A
d
j
ustment of the measurement with an analog
signal of 10 V or 20 mA.
Example of the adjustment of the analog input with a voltage signal:
Note:
T
he measurements for the ad
j
ustment are to be done with a suitable
measuring instrument and the correct polarity.
If not, faulty measurements can result.
If an external volta
g
e source is used for the ad
j
ustment, make sure to
set the volta
g
e/current values exactly as these values are saved as 0 V/0
mA and 10 V/20 mA.
• Apply 0 V to the analog input; e.g. with a wired link from the terminal of the ana-
log input X410B.3 to terminal X210B.7 (earth/GND) of the frequency inverter.
• Select operation mode "1 - Adjustment 0 V / 0 mA“.
• Apply 10 V to the analo
g
input, e.
g
. with a wired link from the terminal of the
analog input to terminal X210B.5 (reference output 10 V) of the frequency in-
verter.
• Select operation mode "2 - Adjustment 10 V / 20 mA“.
This completes the adjustment of the analog input.
5.1.9 Filter time constant
The time constant of the filter for the reference analog value can be set via the pa-
rameter
Filter time constant 561.
T
he time constant states the time for which the input si
g
nal is avera
g
ed by means of a
low pass filter, e.g. in order to eliminate fault effects.
The setting range is a range of values between 0 ms and 5000 ms in 15 steps.
Operation mode Function
0 -Time constant 0 ms
Filter deactivated – analog reference value is for-
warded unfiltered
2 -Time constant 2 ms
4 -Time constant 4 ms
8 -Time constant 8 ms
16 -Time constant 16 ms
32 -Time constant 32 ms
64 -Time constant 64 ms
128 -Time constant 128 ms
256 -Time constant 256 ms
512 -Time constant 512 ms
1000 -Time constant 1000 ms
2000 -Time constant 2000 ms
3000 -Time constant 3000 ms
4000 -Time constant 4000 ms
5000 -Time constant 5000 ms
Filter activated – averaging of the input signal via
the set value of the filter time constants