This AC servo motor delivers 21.5 Nm rated torque and 53 Nm peak torque at 2000 rpm. Drive features 200 kHz pulse support, LED monitoring, and alarm output. DSP control ensures no step loss, low noise, with optional 220V/380V voltage configurations. It is an ideal choice for CNC, automation, and packaging machinery engineers. Get a quote for this AC servo motor with drive today.
Specification
| Serv Motor |
| Model |
CCHN-LCMT-45M-21520 |
| Electrical Time Constant |
6Ms |
5.6Ms |
| Resistance |
0.24Ω |
0.71Ω |
| Inductance |
1.45mH |
4mH |
| Rated Voltage |
220V |
380V |
| Rated Current |
16A |
9.5A |
| Torque Constant |
1.34N·m/A |
2.26N·m/A |
| Back EMF |
84V/1000 r/min |
140V/1000 r/min |
| Rated Power |
4.5kW |
| Rotor Inertia |
4.7 × 10⁻³kg·m² |
| Rated Speed |
2000rpm |
| Peak Torque |
53N·m |
| Rated Torque |
21.5N·m |
| Product Weight |
22.2kg |
| Motor Body Length |
243mm |
| Length with Brake |
315mm |
| Motor Power Cable |
Default: 3m (Contact us for other lengths) |
| Encoder Cable |
Default: 3m (Contact us for other lengths) |
| Encoder Type |
2500/17-wire Absolute Encoder |
| Insulation Class |
Class B (130°C) |
| Protection Grade |
IP66 |
| Certification |
CE |
| Servo Drive |
| Model |
CCHN-LCDA630 (Click to see the drive manual) |
| Pulse Width |
> 2.5 μs |
| Analog Voltage |
3-phase 380 V |
| Alarm Output |
Supported |
| Signal Voltage |
Default +5 V; series limiting resistor required for 12 V / 24 V |
| Response Frequency |
Max. 200 kHz (pulse train) |
| Pulse Mode |
Direction + Pulse / CW + CCW |
| Supported Motor |
4.5 ~ 7.5 kW AC Servo Motor |
| Weight |
5.15 kg |
| Dimensions |
304 × 227.5 × 120 mm |
Features
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High Torque: This 4.5 kW AC servo motor delivers 21.5 Nm rated torque and 53 Nm peak torque, providing powerful and stable output for CNC machines and automated equipment.
-
Intelligent AC Servo Drive: The servo drive features a six-digit LED display for convenient parameter adjustment and real-time operating status monitoring, while built-in alarm output improves operational safety and equipment reliability.
-
Closed-Loop Without Step Loss: Equipped with intelligent DSP digital technology and advanced closed-loop servo control mode, this servo motor ensures precise positioning, stable speed regulation, and smooth high-speed operation without losing steps.
-
Fast Response: The AC servo drive supports pulse response frequency up to 200KHZ, enabling faster signal processing, rapid acceleration, and high-precision motion control for industrial automation systems.
-
Multiple Control Modes: This industrial ac servo motor kit supports direction + pulse control, CW + CCW control, AB pulse control, and analog voltage control, making integration easier for different automation equipment and control systems.
-
Low Noise Industrial Servo Motor: Using advanced noise reduction technology, the servo motor operates with lower vibration and quieter performance, helping maintain a stable and low-noise industrial working environment.
Dimension (unit: mm)
Servo Motor

Installation Notes: When installing or removing components on the motor shaft, do not strike the shaft with force, as this may damage the encoder at the opposite end. Minimize vibration to the shaft assembly to prevent bearing failure.
Winding and Encoder Connection
| Motor Winding Connector |
Encoder Connector |
| Winding Lead |
Connector Pin Number |
Signal Lead |
Connector Pin Number |
Signal Lead |
Connector Pin Number |
| U |
2 |
5V |
2 |
Z- |
9 |
| OV |
3 |
U+ |
10 |
| V |
3 |
A+ |
4 |
V+ |
11 |
| B+ |
5 |
W+ |
12 |
| W |
4 |
Z+ |
6 |
U- |
13 |
| A- |
7 |
V- |
14 |
| PE |
1 |
B- |
8 |
W- |
15 |
| PE |
1 |
|
Servo Drive

Wiring

Installation Precautions:
1. Verify the power supply and wiring for terminals R, S, T and L, N are correct.
2. Confirm the phase sequence wiring of the servo motor output terminals U, V, W is correct.
Servo Drive Details

Tips: Servo motor does not run when the pulse is output, how to solve?
- Monitor the current pulse output value of controller and check if pulse output indicator lamp flashes to confirm that the controller has performed command pulse and has output pulse normally.
- Check if the control cable, power cable, encoder cable between controller and driver are matched incorrectly damaged or contacted poorly.
- Check if the brake of servo motor equipped with brake has been turned on.
- Monitor the panel of servo driver to confirm if the pulse command has been input.
- Run command is normal.
- For control mode, always choose position control mode.
- Check if the type of input pulse set by servo driver matches with that of command pulse.
- Ensure that positive side drive prohibition, negative side drive prohibition signals and deviation counter reset signal are not input and the servo motor runs normally if load is removed, then check the mechanical system.