Veichi JT550 Series Manual page 90

Chapter 7 Maintenance and Troubleshooting
F3.09 Output max.Freq of DO
If the Y2/DO terminal is used for pulse output, this parameter is used to set the maximum frequency of
pulse output.
F3.10
F3.11
F3.12
F3.13
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:
K
For example, AO1 is used for output of frequency reference. To implement output of 2 V (Y1) at 0
Hz (x1) and output of 10 V (Y2) at 50 Hz (X2) according to the formulas, you can obtain gain and
zero offset coefficient as follows:
Then you can set F3.10 to 20 and set F3.11 to 0.8
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.
AO output signal type and corresponding max. value are as follows:
AO output signal
Voltage
Current
Y1 switch-on delay
F3.14
Y1 switch-off delay
F3.15
Y2 switch-on delay
F3.16
Y2 switch-off delay
F3.17
R-relay switch-on delay
F3.18
R-relay switch-off delay
F3.19
E-relay switch-on delay
F3.20
E-relay switch-off delay
F3.21
F3.22 Monopulse Output Time Y1
F3.23 Monopulse Output Time Y2
F3.24 Monopulse Output Time Relay R
F3.25 Monopulse Output Time Relay E
ON
OFF
actual
AO1 offset coefficient
AO1 gain
AO2 offset coefficient
AO2 gain
( Y 1  Y 2 * ) X max

( X 1 X 2 * ) Y max

2 ( 10 * ) 50

K 0 8 .
 
0 ( 50 * ) 10

Corresponding Max. Output (Ymax)
10 V
20 mA
Switch-on delay
Range:0.01kHz~100.00kHz
Range:-100.0~+100.0
Range:-10.00~+10.00
Range:-100.0~+100.0
Range:-10.00~+10.00
( X * 1 Y 2  X 2
b 
( X 1 X 2 * ) Y

0 ( * 10 50 * ) 2

b * 100

0 ( 50 * ) 10

0.0s~3600.0s
0.0s~3600.0s
0.0s~3600.0s
0.0s~3600.0s
0.0s~3600.0s
0.0s~3600.0s
0.0s~3600.0s
0.0s~3600.0s
0.0s~30.0s
0.0s~30.0s
0.0s~30.0s
0.0s~30.0s
Switch-off delay
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JT550 Series Inverter Manual
Default:50.00Hz
Default:0.0
Default:1.00
Default:0.0
Default:1.00
* Y ) 1
* 100 %
max
% 20 %

0.0s
0.0s
0.0s
0.0s
0.0s
0.0s
0.0s
0.0s
0.0s
0.0s
0.0s
0.0s