SDJ series (10KW-25KW) AC controller is a driver that can be applied to low-voltage and high-voltage AC electric vehicles. The controller uses a highly reliable and high-torque asynchronous motor as the driving device. Through the four-quadrant vector control method, the controller realizes the control of the electric vehicle motor speed and torque. It can be widely used in pure electric passenger cars, low-speed A00 class passenger cars, electric sightseeing cars, electric logistics vehicles and other electric vehicles.
| Product number | 10-25KW |
| application | Pure electric passenger cars, electric sightseeing cars, electric sweepers, electric logistics vehicles, etc. |
| Voltage [VDC] | 72-144 |
| High current (2 min) [A] | 600 |
| Control type | speed/torque |
| control method | Vector control |
| CAN bus | YES |
| Protection level | IP65 |
| Dimensions | 288x185x99mm |
AC controller (10KW-25KW)
AC controller (10KW-25KW)
Users Manual
Table of contents
1. Product Introduction................................................ ................................................................. ........2
2. 2. Product Features........................................ ................................................................. ..........2
3. 3. Product technical description........................................ ................................................................. ...3
4. Appearance Dimensions........................................ ................................................................. ........3
5. Controller wiring port definition diagram........................................ .............................5
6. Installation Precautions................................................ ................................................................. .6
7. Fault alarm................................................ ................................................................. ........7
8. Frequently Asked Questions about Loading................................... ................................................................. ..7
9. Troubleshooting of user faults........................................ ............................................8
1. Product introduction
SDJ series (10KW-25KW) AC controller is a driver that can be applied to low-voltage and high-voltage AC electric vehicles, supporting voltages from 48V to 144V. The controller uses a highly reliable and high-torque asynchronous motor as the driving device. Through the four-quadrant vector control method, the controller realizes the control of the electric vehicle motor speed and torque. It can be widely used in pure electric passenger cars, electric forklifts, low-speed A00 class passenger cars, electric sightseeing cars, electric logistics vehicles and other electric vehicles.
2. Product features
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Using mainstream DSP as the core of digital drive control, it builds a good platform for motor control algorithms; |
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Advanced high-power MOSFET tubes are selected as power devices to achieve efficient energy conversion; |
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Multiple safety CAN interface protection and lithium battery BMS for safety certification management; |
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Support short circuit protection (phase-ground-phase-source) overload, over-temperature, and over- voltage protection; |
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Dynamic low-speed feedback electric braking technology improves the vehicle's driving range and meets user needs; |
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Micro-movement technology and steep slope descent and slope holding technology have stronger climbing ability, stable slope holding, and powerful starting; |
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Deep optimization algorithm, frequency range from 0 to 300 Hz, ensuring reduced noise and vibration amplitude; |
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Complete fault protection function, buzzer prompts various faults, convenient for maintenance; |
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CAN bus technology reduces wiring and enables parameter adjustment and online programming of the controller; |
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Adopt a compact design to make the volume smaller and lighter; |
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Self-learning function simplifies installation and debugging steps. |
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Strong reliability and low maintenance cost. |
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Parameters or software can be customized according to customer needs. |
3. Product Technical Description
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Technical Parameters |
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Product Specifications |
SDJ‐4865 |
SDJ‐7265 |
SDJ‐9660 |
SDJ‐14455 |
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48V |
72V |
96V |
144V |
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Electrical Characteristics |
Input voltage range ( DC/V ) |
30~60 |
60~88 |
80~115 |
120~160 |
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Maximum output current ( AC/A ) |
650 |
650 |
600 |
550 |
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Rated output current ( AC/A ) |
220 |
220 |
220 |
220 |
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Controller starting voltage ( DC/V ) |
40 |
63 |
85 |
130 |
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Maximum output power ( KW ) |
30 |
45 |
55 |
75 |
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Working environment temperature range ( ℃ ) |
‐30℃——55℃ |
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Storage environment temperature range ( ℃ ) |
‐40℃——70℃ |
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Insulating properties |
The leakage current of 48V/72V/96V input and output to the chassis at DC1000V is 0.05mA , and the insulation resistance is 20M Ω.The leakage current of 144V input and output against the chassis at DC2100V is 2.1mA , and the insulation resistance is 1MΩ . |
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Controller efficiency |
0.98 |
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cooling method |
Automatic cooling / air cooling |
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Vibration standards |
GB/T2423 |
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control method |
Vector control |
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communication method |
RS232/CAN |
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waterproof level |
IP67 |
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weight |
4.8kg |
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Applicable motor |
Asynchronous motor |
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*Values are absolute maximums and will be adjusted according to user specific needs.
4. Appearance size
5. Controller wiring port definition diagram
6. Installation precautions
1 1. The terminals shown in the figure are for the cable entry direction.
2 is connected to the positive terminal of the battery, B- is connected to the negative terminal of the battery, U, V and W are connected to the three phases of the motor U, V and W respectively.
3. The terminal posts are fixed with M6*20 bolts, and the torque of M6 bolts is 10±2Nm.
7. Fault alarm
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Serial No. |
Audible Alarm |
Problem analysis |
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1 |
1 long 3 short |
Overcurrent, the three-phase wires of the motor are short-circuited. If the three-phase wires of the motor are still 1 long and 3 short after being removed and powered on, please return the controller to the manufacturer for repair. |
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2 |
1 long 4 short |
Controller temperature is too high. (Constantly going uphill or overloaded, working under high current conditions) |
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3 |
1 long 9 short |
The battery is discharged and needs to be recharged. |
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4 |
1 long 10 short |
Check whether the voltage exceeds the controller matching voltage value. |
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5 |
1 long 11 short |
The motor temperature is too high. |
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6 |
1 long 12 short |
Motor temperature open circuit or short circuit. |
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7 |
1 long 13 short |
The foot pedal is faulty and needs to be replaced. |
8. Frequently Asked Questions about Truck Loading
1. After the wiring is correct, if the accelerator scooter does not move lightly, there are three possibilities:
(1) Check whether the electric door lock is on and off normally and whether the electric lock signal is normal. Check the electric door lock control circuit. (For example: whether the relay is closed, whether the electric door lock switch is damaged)
(2) Read the gear signal through the host computer software and check whether the throttle signal is output.
(3) Check whether the power supply of the accelerator pedal and the controller match. The power supply voltage of the accelerator pedal is divided into 12V and 5V. (If the controller is suitable for a 12V accelerator pedal and the matching one is 5V, it cannot be used)
2. After correct wiring, if you step on the accelerator pedal and find that the car is going very slowly, there are two possibilities:
1 (1) The motor encoder is abnormal.
2 (2) The motor phase sequence is reversed, swap the UV or VW phase lines.
3. When the car is in gear, the car goes backwards, and when in reverse gear, the car moves forward. It can be judged that the gear signal is connected in reverse. This can be solved by the following two methods:
(1) Swap the motor phase line UV or VW, and swap the motor encoder AB line.
(2) Adjust through the host computer software.
9. Troubleshooting of user faults
1. The car will not move after the electric door lock is opened, or the electronic accelerator will fail when the car is running.
(1) Check whether the three-phase wire is loose, causing poor contact between the controller and the motor. If it is just loose, tighten the screws. If one of the UVW phase terminals has ignited, heated and burned out, the controller needs to be replaced.
(2) Check whether the controller's wiring harness connector is fastened.
(3) Check whether the battery voltage of the controller is too low.
(4) Check whether the electronic throttle is damaged.
2. The car moves slowly and the controller becomes hot.
1 (1) The motor encoder is damaged.
2 (2) Under normal conditions of the encoder, check whether the cables are connected reversely.
3. Walk sometimes but never leave
(1) Check whether the connector is loose.
(2) Check whether the gear signal input is normal, and read the gear signal and throttle signal through the host computer.
4. High and low speed cannot be switched
(1) Check whether the high and low speed switches are damaged.
5. Instrument communication is abnormal or does not communicate.
(1) Check whether the instrument is normal and whether the connecting harness is open circuit or has poor contact.
6. The car moves automatically
(1) The electronic throttle outputs the throttle switch signal and the throttle signal at the same time, and the electronic throttle needs to be replaced.
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