K&R GT600-4T132G User Manual page 203

6. Description of Parameters
Function Code
F5-09
This function parameter sets maximum pulse output frequency when FM terminal is used for
pulse output.
Function Code
F5-10
F5-11
F5-12
F5-13
These four function parameters generally correct zero offset of analog output and output
amplitude error. They can also define required AO curve.
Zero offset coefficient 100% of AO1 and AO2 corresponds to 10 V or 20 mA. You can calculate
the gain and the zero offset coefficient from the following formulas:
In the formulas:
●
"b" represents zero offset.
●
"k" represents gain.
●
"X" represents output frequency.
●
"Y" represents actual output of the AO.
●
" Xmax " represents max. output frequency (determined by F0-10).
●
"Ymax" represents max. output 10 V or 20 mA.
For example, AO is used for output of frequency reference. To implement output of 8 V (Y1) at 0
Hz (x1) and output of 4 V (Y2) at 40 Hz (X2) according to the formulas, you can obtain gain and
zero offset coefficient as follows:
Then you can set F5-11 to -0.5 and set F5-10 to 80%.
AO output signal type and corresponding max. value are as follows:
AO1 output signal
Voltage
Current
Parameter Name
Max. FMP output frequency
Parameter Name
AO1 zero offset coefficient
AO1 gain
AO2 zero offset coefficient
AO2 gain
(Y1 – Y2) x Xmax
K
=
(X1 – X2) x Ymax
(8 – 4) x 50
– 0.5
=
K =
(0 – 40) x 10
Setting Range
0.01 to 100.00 kHz
Setting Range
-100.0% to 100.0%
-10.00 to 10.00
-100.0% to 100.0%
-10.00 to 10.00
(X1 xY2 – X2 x Y1)
b =
(X1 – X2) x Ymax
(0 x 4 - 40 x 8)
b =
= 80%
(0 - 40) x 10
Corresponding Max. Output (Ymax)
10 V
20 mA
Default
50.00 kHz
Default
0.0%
1.00
0.00%
1.00
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