Haier 1UH071N1ERG [196/238] Smart power

194

Smart Power

DC bus over/under voltage protection

Bus voltage>overvoltage shutdown value, the compressor stop, then drive into the bus overvoltage protection.

Bus voltage<overvoltage recovery value, cancel the bus overvoltage protection.

Bus voltage<under voltage shutdown value, the compressor stop, then drive into the bus under voltage protection.

Bus voltage>voltage recovery value, cancel the bus under voltage protection.

AC input over/under voltage protection

Drive come with AC voltage detection, avoid the input voltage is too low, cause the input current is too high,

damage the device.

Input voltage<under voltage shutdown value, the compressor stop, then drive into the input under voltage

protection.

Input voltage>voltage recovery value, cancel the under voltage protection.

Drive come with AC voltage detection, avoid the input voltage is too high, damage the device.

Input voltage>overvoltage shutdown value, the compressor stop, then drive into the input overvoltage protection.

Input voltage<overvoltage recovery value, cancel input overvoltage protection.

Communication error

If model code is our of model range or no right communication data is received within 30s, communication failure is

conrmed, execute stop protection under communication failure, in the meanwhile, relevant error code is sent back.

When communication is conrmed, if right data is received again and within normal range, error is removed.

PFC switch value

When PFC sampling current>PFC open switch current and the DC bus average voltage<PFC open switch voltage,

then opening PFC;

When PFC sampling current<PFC off switch current, off PFC.