Veichi JT550 Series Manual page 119

JT550 Series Inverter Manual
They have been corrected upon delivery. When you resume the factory values, these parameters will be
restored to the factory-corrected values. Generally, you need not perform correction in the applications.
Measured voltage indicates the actual output voltage value measured by instruments such as the
multimeter. Displayed voltage indicates the voltage display value sampled by the inverter. For details, refer to
H0.31, H0.32 and H0.33.
During correction, send two voltage values to each AI terminal, and save the measured values and
displayed values to the function codes P1.00 to P1.11. Then the inverter will automatically perform AI zero
offset and gain correction.
If the input voltage and the actual voltage sampled by the inverter are inconsistent, perform correction
on site. Take AI1 as an example. The on-site correction is as follows:
1) Send a voltage signal (approximately 2 V) to AI1.
2) Measure the AI1 voltage and save it to P1.00.
3) View the displayed value of H0.31 and save the value to P1.01.
4) Send a voltage signal (approximately 8 V) to AI1.
5) Measure AI1 voltage and save it to P1.02.
6) View the displayed value of H0.31 and save the value to P1.03.
At correction of AI2 and AI3, the actually sampled voltage is respectively queried in H0.32 and H0.33.
For AI1 and AI2, 2 V and 8 V are suggested as the correction voltages. For AI3, -8 V and 8 V are
suggested.
P1.12 AO1 target voltage 1
P1.13 AO1 measured voltage 1
P1.14 AO1 target voltage 2
P1.15 AO1 measured voltage 2
P1.16 AO2 target voltage 1
P1.17 AO2 measured voltage 1
P1.18 AO2 target voltage 2
P1.19 AO2 measured voltage 2
These parameters are used to correct the AO.
They have been corrected upon delivery. When you resume the factory values, these parameters will be
restored to the factory-corrected values. You need not perform correction in the applications.
Target voltage indicates the theoretical output voltage of the inverter. Measured voltage indicates the
actual output voltage value measured by instruments such as the multimeter.
P1.20 AI1 filtering dead zone
P1.21 AI2 filtering dead zone
P1.22 AI3 filtering dead zone
The group function is used to eliminate analog input jitter.the larger the set value, analog jitter smaller,
but the larger the error.
Group H0: Monitoring Parameters
You can view parameter values by using operation panel, convenient for on-site commissioning, or
from the host computer by means of communication (address: 0x7000-0x7044).
H0.00
H0.01
H0.02
H0.03
H0.04
H0.05
H0.06
H0.07
It displays state of DI terminals."1"indicates high level signal, and"0"indicates low level signal.
Running frequency（Hz）
Set frequency（Hz）
Output current（A）
Output voltage（V）
Output power（kW）
Output torque（%）
Bus voltage（V）
Bit4 Bit3
X5 X4
Range: 0.500V~4.000V
Range: 0.500V~4.000V
Range: 6.000V~9.999V
Range: 6.000V~9.999V
Range: 0.500V~4.000V
Range: 0.500V~4.000V
Range: 6.000V~9.999V
Range: 6.000V~9.999V
Range: 0~255
Range: 0~255
Range: 0~255
X input state1
Bit2 Bit1
X3 X2
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Chapter 7 Maintenance and Troubleshooting
Factory corrected
Factory corrected
Factory corrected
Factory corrected
Factory corrected
Factory corrected
Factory corrected
Factory corrected
Default: 0
Default: 0
Default: 66
0.01Hz
0.01Hz
0.01A
1V
0.1kW
0.1%
0.1V
1
Bit0
X1