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FAQs Library
Q
It shows ER05-0 error after customers modify motor code in the keypad, what's the reason?
A

There are two parts of the motor codes: high bit and low bit. Probably customers only change the low bit of the motor code, but didn't change the high bit, so the motor codeis wrong, and it shows ER05-0 error.

Q
What's the difference between VS HMI and VK/VT HMI?
A

The programming software of VS HMI is HMITool and VK/VT HMI is programmed by VT Designer, and VS HMI is economic model whose price is good.

Q
What are the main features of AX series PLC and what's the main difference between AX70 and AX71 PLC?
A

Features:
1. Support EtherCAT distributed IO, and maximum up to 32,000 points;
2. Excellent motion control function including interpolation, chasing cut, flying cut and so on;
3. Visualization configuration, support IL, LAD, FBD, SFC, ST, CFC 6 programming language;
4. Abundant field bus including EtherCAT, CANopen, Ethernet and modbus;

The main difference between AX70 and AX71:
AX70 can support 32 axes via EtherCAT communication, and AX71 can only support 8 axes.

Q
What's the output type of IVC series PLC?
A

'R': relay output; 'T': transistor output(NPN); Please note that INVT PLC doesn't support PNP output.

Q
GD350 applied in V/F operation is not stable, the output current is higher than the normal value, how to solve it?
A

Adjust V/f control parameters properly.
1. Slip compensation P04.09
2. Suppression of oscillation P04.10, P04.11, P04.12, P11.27 (VF oscillation suppression method selection, ones bit effective)
3. PWM selects the ones bit in P08.40

Q
Does GD300-01A have 500V and 660V voltage levels?
A

According to customer needs, models with 500V and 660V voltage levels can be provided.

Q
Which operation panel can be used to control and set the parameters of GD300-21 integrated machine?
A

Usually a HMI with special air compressor program is needed. The HMI operation is intuitive and simple, and the air compressor can be debugged without instructions. In addition, in order to meet the operating habits of different customers, an LCD keyboard can also be selected to realize all parameter settings and debugging of the integrated machine.

Q
How does GD300-16 hibernation work?
A

Hibernation is a function for saving energy, when the pressure/flow requirement is very little for a long time, VFD enter to hibernation status. There are 2 kinds of hibernation, according to the running frequency or deviation, the hibernation internal logic is as attachment.

PDF Download

Q
How to solve the problem that the GD20U's terminals invlaid?
A

Possible causes of failure:
1. The short-circuit connection jumper between terminal 24 V and PW is lost;
2. The voltage of terminal 24 V is abnormal;
3. The terminal is damaged;
4. The terminal polarity is set incorrectly;
5. Some parameter setting is improper, please reset to factory parameters, then test.

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