EM330D Builder Lift Inverter Your current location:Home > Products
Builder lift inverter

3-phase 380 V-20%~415V+20%, 3.0~400kW

EM330D is a specially designed inverter for hoisting in open loop control mode like builder lift etc.

1.Technical Features

① . Stable torque output, 150% rated torque at 0Hz, the hoist operates   smoothly during starting, hoisting and fall.

② .  Special brake control logic.

③.  Optimum current limit, trip fault will not occur when the load varies frequently.

④.  Wide range of input voltage by AVR technology, high torque output remains when under voltage.

.  Wide range of speed regulation meets the requirements for high speed under light load and low speed under heavy load, significantly increasing the operation efficiency of the hoist.

2. Wiring diagram




 Mains  supply

 Rated Voltage

 3-phase 380 V-20%~415V+20%, 50/60Hz±5%, voltage imbalance rate<3%


 Output Voltage

 3-phase, from 0 to mains supply

 Rated Output


 100% rated current non-stop output

 Max. Overload


 150% rated current for 1 minute, 180% rated current for 10 seconds



 Control Mode

 Specialized hoisting control

 Input Mode

 Frequency (Speed) input

 Running Mode

 Keyboard, control terminals (2-wire sequence, 3-wire sequence), RS485


 Control Range


     Input Frequency


 Digital input: 0.01Hz

 Analog input: 0.1% of maximum frequency





 Speed Control  Accuracy

 ±0.5% rated synchronous revolution




 0.01~600.00 seconds/minutes

 V/F Features

 Rated output voltage: 20%~100% adjustable

 Frequency base: 20.00~600.00Hz adjustable

 Torque Boost

 Automatic torque boost, fixed torque boost curve

 Starting Torque



 AVR is active while output voltage remains unchanged if input voltage is varying.


 Current Limit

 Automatically limit output current, avoid frequent overcurrent tripping. (Do not apply  this function to building lift and hoisting of tower crane)

 DC Brake

 Brake frequency: 0.1~60.0Hz, brake time: 0~30s

 Brake current: 0~150% rated current

 Signal Input


 Communication, analog voltage, analog current, preset speed, simple PLC or its  group wares.








 Control Power


 Digital Input


 7  programmable input terminals

 Analog Input


4 analog inputs: 2 voltage input (0~10V) and 2 current inputs (0~20mA)

 Digital Output


 2 OC outputs and 1 relay output are programmable

 Maximum output current of OC: 50mA

 Relay contact capacity: 250VAC/3A or 30VDC/1A. When relay acts, EA-EC is on, and  EB-EC is off

 Analog Output


 2 programmable analog output terminals can output: 0~10V or 0~20mA




 Human interactions with displays and control actuators



 Upload and download parameter information of the inverter, copy parameters  rapidly



 Short circuit, overcurrent, overvoltage, overload, phase loss, undervoltage,  overheating, external faults, etc.



 Installation Site

 Indoor, with altitude less than 1,000 meters, free from dust and corrosive gas, and  direct sunlight



  -10~+50. Derated from ambient +40~+50,

   20%~90%RH (no condensation)








 Installed inside the electric cabinet

 Protection Grade


 Cooling Method

 Forced air cooling

 Safety Standard


 EMC Standard


4. Model Numbering Scheme

5. Model Number List

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