Hoist Inverter
AS600 hoist inverter features wide power and voltage range, and is able to work at a very high input voltage up to 690V. It can be designed with various optional built-in drive parts to ensure simple and convenient installation, and is programmable to suit customers' varied application demands. In addition, we can customize the hoist inverter according to users' other specific requirements.
The hoist inverter can be used for control of common asynchronous motors and variable frequency motors, and is ideal for lifting, translation and rotational function control of industrial hoisting equipment such as gantry crane, container crane, cargo crane, and more. It has successfully found applications in paper making, metallurgy, mining, cement, chemical, petroleum, and natural gas industries.
Due to our adoption of international advanced speed sensorless vector control, closed loop vector control and torque control technologies, the hoist inverter offers superior control performance comparable with high end frequency inverters on international market. Additionally, the hoist inverter is provided with enhanced reliability and environmental adaptability, so as to better suit market demands.
The rated current design provides the hoist inverter with high overload capability, making it ideal for use in industrial applications. Meanwhile, the hoist inverter has superior performance and multiple advantages. To illustrate, it offers accurate static and dynamic speed, precise torque control, and high motor starting torque, and it also supports super-long cable connection.
In order to ensure safety, the hoist inverter is designed with various protection functions, including terminal protection, overheat alarming, whole machine protection, and more. Also, it comes with self-detection function when powered on, and has wide voltage range design, compact structure and independent air duct. It is waterproof, dustproof and impact resistance, which ensures reliable performance and long service life.
Under different control modes, our hoist inverter allows electric motors to have different starting torque, speed range and speed stabilization precision, etc. Details are listed below:
1. V/F control mode
Starting torque: 0.50Hz, 180% rated torque (Speed regulation range: 1:100; Speed stabilization precision: ±0.5%)
2. Open loop vector control mode
Starting torque: 0.20Hz, 180% rated torque (Speed regulation range: 1:200; Speed stabilization precision: ±0.2%)
3. Closed loop vector control mode
Starting torque: 0.00Hz, 200% rated torque (Speed regulation range: 1:1000; Speed stabilization precision: ±0.02%)
4. Torque control mode
The hoist inverter supports online switch between torque control mode and speed control mode. The torque precision is ±5%, and response time is less than 10ms.
Technical Specifications of the Hoist Inverter
| Input Power | Input power | 380V-460V (-15% - 10%), 3-phase |
| Input frequency | 45-65Hz | |
| Voltage permitted change range | Unbalanced voltage < 3% | |
| Voltage dips | Under-voltage protection is available in 15ms, when there is three phase, AC380V-460V power supply, and input voltage is less than AC 300V | |
| Output power | Motor output voltage | 0VAC-100% input voltage, 3-phase |
| Output frequency | V/F control: 0.00 – 300.00Hz Vector control: 0.00 – 120.00Hz | |
| Overload level | Reload (40℃): 150%, 1min; 200%, 3s | |
| Efficiency (full-load) | 7.5kw or below, ≥ 93%; 45kw or below, ≥ 95%; 55kw or above, ≥ 98% | |
| Output frequency precision | -0.01% (digital command, -10- 45C) -0.1% (simulated command, 25±10C) | |
| Digital input/output | Opto-isolator input | 8-channel, 24V can be configured. Input function can be user-defined |
| Open-collector output | 2-channel. Output function can be user-defined | |
| Relay output | 4-channel. Normal open and close contacts Contact capacity: 5A 250VAC or 5A 30VDC; Output function can be user-defined | |
| Analog input /output | Analog voltage input | 2- channel, -10- 10VDC or 0- 10VDC precision 0.1% |
| Analog current input | 1- channel, 0-20mA, precision 0.1% | |
| Analog voltage output | 2- channel, -10- 10VDC, precision 0.1% | |
| Potentiometer voltage | Set the speed for the potentiometer 10VDC power (maximum 25mA) | |
| Encoder input | PG card power | 5V, 12V, 300mA |
| PG card signal | Set off, differential, SIN/COS, Endat | |
| PG card frequency divider output | OA, OB, divider parameter 1- 128 |
| Control characteristics | Carrier wave frequency | 2-16k (Hz); according to the load characteristics, the carrier wave frequency can be adjusted |
| Preset frequency resolution | 0.01Hz (digital command) - 0.06Hz/120Hz (analog command 11bit unsigned) | |
| Control command given method | Given by Control panel, terminal control and communication control | |
| Frequency setting methods | Control panel, digital/analog, communication and more | |
| Torque boost | Automatic torque boost; manual torque boost | |
| V/F curve | User defined V/F curve, linear V/F curve and 5 torque-decreasing characteristics curve | |
| Automatic voltage adjustment (AVR) | The duty ratio of output PWM signal is adjusted automatically according to the fluctuation of bus voltage, so as to reduce output voltage fluctuation caused by unstable power grid voltage | |
| Instantaneous power down disposal | At the time of instantaneous power down, the bus voltage control is available so as to realize uninterrupted operation | |
| Direct brake function | Brake current: 0.0 – 150.0% rated current | |
| Specifications | Parameter Copy | The standard operation panel can realize the parameter upload, download and display the copy progress. The user can select the upload forbidden function to avoid parameters be overwritten. |
| PID process | For closed-loop control of process variable | |
| Torque control function | The switch between torque control and speed control can be achieved through terminals; | |
| Zero servo and position control function | The hoist inverter is able to achieve zero-speed position locking accurately | |
| Common DC bus | Different series of hoist inverter can share one bus | |
| Power-on self-testing | The hoist inverter is able to realize the power-on auto-detection of internal and external circuits, including motor grounding, abnormal 10v power supply output, abnormal analog input, and disconnection | |
| Motor protection | Rotor locking protection | |
| Motor overload protection | | |
| Motor overheat protection | | |
| Speed limit protection | | |
| Torque limit protection | | |
| Hoist inverter protection | Output current limitation | |
| Torque limitation | | |
| Overload | | |
| IGBT overload | | |
| Input power low voltage/over voltage | | |
| DC bus low voltage/over voltage | | |
| IGBT overheat | | |
| Radiator overheat | | |
| Power failure | | |
| 10V power output error | | |
| Analog input signal lost (speed reference value lost) | | |
| Communication failure | | |
| Encoder connection problem | | |
| Self-setup problem | |
| Ambient condition | Working place | Install the hoist inverter vertically in an appropriate place; horizontal or other installation method is not permitted. The cooling medium is air. Install the hoist inverter in an environment without exposure to direct sunlight, dust, corrosive gas, inflammable gas, oil mist, steam and water drop. |
| Temperature | -10 - 40C | |
| Temperature derating | >40℃, for each 1℃ rise, rated output current reduces 1%, 50℃ at utmost | |
| Altitude | 1000m | |
| Height derating | >1000m, for each 100m increase in altitude, rated output current reduces 1%(3000m at utmost) | |
| Temperature | 5 – 95%, (no condensation) | |
| Vibration | 3.5m /s2, 2-9Hz; 10m/s2, 9-120Hz | |
| Storage temperature | -40 - 70C | |
| Protection class | IP00, IP20 | |
| Others | Cooling system | Forced air cooling |
| Certificate | CE |
Model List of the Hoist Inverter
| Rated input | Size | Hoist inverter model | Rated output current | Adapt motor | Overload 150% 1min |
| 200-240V | 1 | AS600 2T01P1 | 6 | 1.5 | 9 |
| AS600 2T02P2 | 9 | 2.2 | 14 | ||
| 380V – 460V | AS600 2T03P7 | 14 | 3.7 | 22 | |
| AS600 4T02P2 | 6 | 2.2 | 9 | ||
| AS600 4T03P7 | 9 | 3.7 | 14 | ||
| AS600 4T07P5 | 13 | 5.5 | 20 | ||
| 2 | AS600 4T05P5 | 18 | 7.5 | 27 | |
| AS600 4T0011 | 27 | 11 | 40 | ||
| 3 | AS600 4T0015 | 34 | 15 | 51 | |
| AS600 4T18P5 | 41 | 18.5 | 62 | ||
| AS600 4T0022 | 48 | 22 | 72 | ||
| 4 | AS600 4T0030 | 65 | 30 | 98 | |
| AS600 4T0037 | 80 | 37 | 120 | ||
| 5 | AS600 4T0045 | 97 | 45 | 146 | |
| AS600 4T0055 | 128 | 55 | 192 | ||
| 6 | AS600 4T0075 | 165 | 75 | 248 | |
| AS600 4T0090 | 195 | 90 | 292 | ||
| AS600 4T0110 | 240 | 110 | 360 | ||
| 7 | AS600 4T0132 | 270 | 132 | 405 | |
| AS600 4T0160 | 302 | 160 | 453 | ||
| AS600 4T0185 | 370 | 185 | 550 |
Note: As for hoist inverters for 4-pole motor (1500r/min) with higher power and voltage, please contact STEP Corporation. Be sure to check the motor nameplate to make sure selected hoist inverter is compatible with the motor.
STEP is an experienced hoist inverter manufacturer based in China. Our wide range of products includes elevator group control system, fan inverter, water pump inverter, full serial VVVF control cabinet, and more.
