General specification
The inverter driver is specially designed for air conditioning DC/AC inverter compressors, which is integrated with Rectifier Bridge, Power on/off, Charging Circuit, DSP chip control circuit, IPM module, communication circuit, capacitor board & EMC filtering board. Users only need to connect power source & send control signal to change compressor’s frequency.
Inverter driver Models
| Model# | Power source | Max Input power | Max Current |
|---|---|---|---|
| HWD1W-1C | Ph1 220-240V 50/60Hz | 3.0 KW | 19 Amps |
| HMD1W-3A | Ph1 220-240V 50/60Hz | 4.4 KW | 19 Amps |
| HMD1W-2B | Ph1 220-240V 50/60Hz | 6.5 KW | 29 Amps |
| HMD4W-3B | Ph3 380-420V 50/60Hz | 10 KW | 16 Amps |
| HMD4W-3A | Ph3 380-420V 50/60Hz | 20 KW | 29 Amps |
Components of the inverter driver
Typically the inverter driver has three components, All of the parts ensure the function of changing compressor frequency. Components are as follows:
Inverter driver board
Change compressor frequency
Capacitor & Filtering board
Filtering for power interference
Protect the circuit
Storage for the DC power
Reactor
Reduce the harmonic impact on the power source
About the testing
The debugger
The debugger is used to control the inverter board to change compressor speed when there is not a main controller board ready, it gets feedback data from the inverter such as setting frequency, compressor current, input current & voltage. The inverter board can be controlled by PLC, main controller board or debugger. Debugger is very convenient during testing.
The following is a Youtube video link to show the connection & testing of the debugger with inverter drivers:
