Introduction
Advantages
1. Small size and high power density
2. Wide voltage range design
Rated voltage input: 380 to 480 V, wide voltage range: 323 to 528 V
3. Built-in DC reactor
The MD500 AC drives of 30 kW and above have built-in DC reactor.
4. Built-in braking unit and related protective function
The power class of the MD500 AC drives with built-in braking unit extends to 75 kW. The protective functions including braking
resistor short-circuit, braking circuit overcurrent, brake pipe shoot-througn.
5. Long serving life design
The bus capacitor has high disposition and long servicing life.
6. Cooling fan drive circuit protection
When short-circuit occurs on the cooling fan due to motor rotor-lock or damage, the cooling fan drive circuit provides
protection.
7. Complete protective functions
The whole series of MD500 AC drives have the protections on short-circuit to ground and pre-charge relay (contactor) close
fault.
8. Complete EMC solution
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