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FAQs Library
Q
How to solve the problem that no display when the GD20UL is powered on?
2021-02-20
A

If the power indicator is on, the keypad does not display,  the possible causes of the failure:
1. The power supply of the driving power board is damaged or there is a short circuit;
2. The keypad wire is not in good contact or the keypad is burnt out;
3. The main control board is damaged;

If the power indicator is not on, the possible causes of the failure are as follows:
1. No input power;
2. The fuse is broken;
3. The rectifier bridge is broken.

Q
Adjusting comfortability during startup or stop:
2021-02-20
A

Startup comfortability can be adjusted by setting the following function codes: P01.01, P01.03, P09.09, P09.10, P09.11, P03.00, P03.01, and P08.05. If the analog weighing equipment is used, startup pre-torque compensation must be adjusted. For details, refer to the descriptions of the function codes.

Stop comfortability can be adjusted by setting the following function codes: P09.15, P09.16, P03.00, P03.01, and P08.04.

Q
What is the difference between power frequency off grid inverter and high frequency off grid inverter?
2021-02-20
A

High frequency inverter has small volume, high efficiency, no isolation transformer,light weight.
Grid frequency inverter with power frequency isolation transformer, the main characteristics are strong overload capacity and load impact resistance, high reliability, but the disadvantages are large size, low efficiency and high cost.
If the load is inductive load such as motor with greater impact, it is recommended to select power frequency off grid inverter; if the load is resistive load with less impact, it is recommended to select high-frequency off grid inverter. BN series belongs to power frequency off grid inverter.

Q
Can BG achieve three-phase 220VAC output?
2021-02-20
A

Yes, non-standard software needs to be customized. Note that the three-phase 220VAC current is nearly twice as large as the 380VAC current, so it needs to be used at reduced power.

Q
What is the input power factor of GD5000?
2021-02-02
A

GD5000 input power factor ≥0.97.

Q
What is the maximum power output by GD3000?
2021-02-02
A

The maximum power of GD3000/1140V product is 1000kW, and the maximum power of GD3000/3300V product is 2500kW

Q
Can solar pumping controller GD100-PV supply for other house applications?
2021-02-02
A

No, GD100-PV can only drive pump, its output is not sine waveform. If need supply to house application need to choose solar inverter.

Q
How to deal with A-LL failt for BPD?
2021-02-02
A

A-LL fault is a water tank empty,underload fault. If a water level switch is used, please check whether the water level switch is normally open and normally closed. If the water level switch is not used, it means that the motor has no-load operation or the motor running current is too low to trigger undervoltage protection. You can reduce the percentage of underload deteck point P15.17.

Q
How to connect external braking resitance and what are the related parameters?
2021-02-02
A

Connect resistance between '+' and 'B2'. It needs to remove the connector between B2 and B3 in small power drives; The related parameters are P0.13 power of external braking resistance; P0.14 resistance value of external braking resistance; P4.34=2  external braking resistance enabled.

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