166
Commander SE Advanced User Guide
Issue Number: 4
12.9 Commander SE analog output offset scaler
Example 1
The Commander SE does not have an offset trim parameter, so in order to achieve this function the drive’s internal PID loop
can be used. For this example the analog output on terminal 6 is required to give 0-10V (0-50Hz) when the analog input goes
from 5.5V-10V.
Parameter set up
7.10
= 0
1.28
= 550.0
Offset using preset speed 8 calculated by:
Required voltage level @ 0Hz / Maximum voltage value of analog output x 1000 (Range of
1.28
)
14.03
=
7.01
PID reference source assigned to analog input 1
14.04
=
1.28
PID feedback source assigned to preset speed 8
14.10
=
1.00
PID proportional gain
14.11
= 0
PID integral gain
14.12
= 0
PID derivative gain
14.13
= 45%
PID output limited to 45% of total value
14.14
= 0
PID output can never go negative
14.15
=
2.22
Output from the PID is scaled back to the full range of the frequency reference, calculated by:
Max range of
14.15
/
14.13
14.16
=
1.36
PID output destination assigned to analog reference 1
14.08
= 1
Enable PID
Perform a Save routine:
xx.00
= 1000 and press red Stop / Reset button on the drive
7.01
14.03
1.28
14.04
5.5V
10V
1000 = 550.0
X
Offset using 1.28
14.08
Enable
PID
14.10
14.12 = 0
14.11 = 0
=
1.00
Subtractor
+
_
14.15
14.10
14.13
= 0
= 45%
Clamp
100%
45%
= 2.22
Scale back
to full range of
frequency
reference
14.16
=
1.36
Содержание COMMANDER SE
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Страница 142: ...142 Commander SE Advanced User Guide Issue Number 4 Figure 6 9 Input line reactor 4400 0241 All dimensions in mm...
Страница 144: ...144 Commander SE Advanced User Guide Issue Number 4 Figure 7 3 Commander SE Size 4 All dimensions in mm...
