CPN880A is a servo driver with high performance DSP based on direct torque control algorithm, multi-functional, with incremental / absolute encoder, developed and produced by our company. The all-digital design makes it have flexible and diverse input control methods, extremely high speed ratio, low noise, high bandwidth, and complete software and hardware protection functions. The driver can be connected to the computer through a serial communication interface to achieve PID parameter adjustment and protection The setting of parameters, motor parameters, acceleration and deceleration time, etc., can also monitor the IO input status, analog input, alarm status and bus voltage.
● Support ABZ interface
● Sine wave output, support position, speed, torque control applications.
● Speed PID closed-loop control, large torque at low speed, built-in model tracking, accurate variable estimation, and high dynamic response.
● High bandwidth, high rigidity, high response, forced convergence.
● The running acceleration / deceleration time can be set by software to realize smooth and gentle running.
● The driver has small loss, high efficiency, and low temperature rise, so it is small and easy to install.
● Support 485 bus, IO port multiple input methods, set by software.
● Enable, direction, and polarity of IO input signal can be set by software.
● Various comprehensive protection functions.
● IIT current limiting protection function. Prevent the motor from being damaged due to stall.
● Built-in braking resistor and control circuit (optional) are used to consume regenerative energy and prevent over-voltage.
● Support different application occasions, can customize the dynamic response of the driver.
● Supports deep customization of functions and special machine application.
Environmental indicators of electrical machinery
| Drive parameters || Minimum value || Typical value || Max || unit |
| Input voltage || 20 || 36 || 80 || V |
| Output current || 0 || 80 || A |
| Under voltage protection || 17 || 18 || 19 || V |
| Overvoltage protection || 68 || 70 || 72 || V |
| Input signal voltage || 4 || 5 || 27 || V |
| Input signal current || - || 10 || - || mA |
| cooling method || Free cooling or forced cooling |
| Use environment || Use occasion || Avoid dust, oil mist and corrosive gases |
| Use ambient temperature || -20 to 50 ° C |
| Working environment humidity || 90% RH (without condensation) |
| storage temperature || -40 to -70 ° C |
| vibration || 5.9m / s2 max |
| weight || 0.5KG |
| Size || 180 * 98 * 53 Unit: mm |
The main technical parameters:
| Encoder type || Incremental encoder. |
| control method || Position closed loop, speed closed loop, and torque mode, supporting individual combination customization for specific applications. |
| Speed mode || Pulse / direction setting, 0-5V analog input, 0-100% PWM input (PWM frequency range: 1KHz-20KHz), internal setting, |
| Speed range || 0—20000RPM |
| Short circuit: short circuit protection when abnormal current is greater than 100A |
| Overcurrent: Overcurrent protection occurs when the current exceeds the set value of the operating current for a set time |
| Overvoltage: when the voltage exceeds 60V, overvoltage protection is generated |
| Protective function || Undervoltage: Undervoltage protection occurs when the voltage is below 18V. l |
| Hall anomalies: including phase anomalies and value anomalies. |
| IIT protection: prevent the motor from blocking a lot of heat. |
| Feedback output || Motor encoder feedback via PG (pulse) and X3 (direction) |
| Acceleration / deceleration time setting || Acceleration / deceleration time can be set through configuration software |
Installation size (unit: mm)
Enhanced cooling method
1）驱动器的可靠工作温度正常在60 ℃内, 电机工作温度为 70 ℃内 ( 1) The reliable operating temperature of the driver is within 60 ℃, and the operating temperature of the motor is within 70 ℃.
2 ）安装驱动器时请直立侧面安装，使散热器表面与空气形成较强对流，必要时靠近散热器处安装风扇，强制散热，保证驱动器在可靠工作温度范围内可靠工作。 ( 2 ) When installing the driver, please install it on the side, so that the surface of the radiator forms strong convection with the air. If necessary, install a fan near the radiator to force the heat to ensure that the driver works reliably within a reliable operating temperature range.
Pinout of the power port
| Pin || Pin name || Definition |
| 1 || V + || Power input positive terminal DC18-70V |
| 2 || GND || Power input negative |
| 3 || PE || Ground |
| 4 || U || Motor phase line U |
| 5 || V || Motor phase line V |
| 6 || W || Motor phase wire W |
Encoder signal input:
| Pin number || Pin name || Definition |
| 1 || GND || Power ground |
| 2 || EB- || Encoder differential signal B- |
| 3 || EB + || Encoder differential signal B + |
| 4 || EA- || Encoder differential signal A- / communication bus A- |
| 5 || EA + || Encoder differential signal A + / communication bus A + |
| 6 || Hw + || Encoder W + signal |
| 7 || Hv + || Encoder V + signal |
| 8 || Hu + || Encoder U + signal |
| 9 || EZ- || Encoder signal Z- |
| 10 || EZ + || Encoder signal Z + |
| 11 || Hw- || Encoder W-signal |
| 12 || Hv- || Encoder V-signal |
| 13 || Hu- || Encoder U-signal |
| 14 || GND || Power ground |
| 15 || + 5V || 5V output power |
Control signal input and output:
Pinout and related names:
| Terminal pin number || Pin name || Definition |
| 1 || 485A || 485 communication signal A |
| 2 || 485A || 485 communication signal B |
| 3 || ALM || Alarm output (open drain) current should be limited to 200mA |
| 4 || PG || Hall signal XOR output (open drain) current should be limited to 200mA |
| 5 || X1 || IO input 1 / as input signal for customized applications |
| 6 || X2 || IO input 2 (as input signal for customized applications) |
| 7 || X3 / EC_DIR || IO input 3 / motor direction feedback / as input signal for customized applications |
| 8 || X4 || IO input 4 (as input signal for customized applications) |
| 9 || XCOM || Input common terminal (common terminal) |
| 10 || 5V || 5v power output, the output current should be less than 50 mA |
| 11 || SV || Analog (Ain) / Digital Signal Input (PWM / PULSE) |
| 12 || GND || Signal ground |
| 13 || GND || Signal ground |
| 14 || Y1 || Universal output port 1 |
| 15 || Y2 || Universal output port 2 |
| 16 || Y3 || Universal output port 3 |
| 17 || Y4 || Universal output port 4 |
| 18 || YCOM || Output common terminal (common cathode) |
| 19 || PUL + || Digital pulse input signal + |
| 20 || PUL- || Digital pulse input signal- |
| twenty one || DIR + || Digital direction input signal + |
| twenty two || DIR- || Digital direction input signal- |
| twenty three || EN + || Enable signal + |
| twenty four || EN- || Enable signal- |
| 25 || Ymos || High-current output port (open-drain output of MOS tube) |
| 26 || GND || Signal ground |
System wiring diagram
1）切勿将交流220V市电直接接入驱动器电源输入端。 ( 1) Do not directly connect AC 220V mains power to the driver power input.
2）切勿将电源接反，驱动器最高承受50A反接电流，超过该值将损坏驱动器。 ( 2) Do not reverse the power supply. The driver can withstand reverse current up to 50A. Exceeding this value will damage the driver.
3）切勿将电源接入电机输出端，否则将损伤驱动器内部功率器件。 ( 3) Do not connect the power supply to the motor output end, otherwise the internal power devices of the driver will be damaged.
4）确保电机相序后再接入驱动器电机输出端，错乱的相序可能会引发报警，也可能损坏电机与驱动器。 ( 4) Ensure that the motor phase sequence is connected to the motor output end of the driver. An incorrect phase sequence may cause an alarm or damage the motor and driver.
Power supply requirements
1）电源电压应在DC20-60V之间，如果变压器整流供电应考虑+/-20%电网电压波动 ( 1) The power supply voltage should be between DC20-60V, if the transformer rectified power supply should consider +/- 20% grid voltage fluctuation
2）为稳定可靠工作，电源电流应大于驱动器的最大输出电流。 ( 2) For stable and reliable operation, the power supply current should be greater than the maximum output current of the driver.
3）选用开关稳压电源供电应注意电源过压保护方式.电机在带载快速减速情况下会将能量回馈到电源造成电压升高，有些电源过压后直接关机，造成断开，因此不能选择过压保护关机这类型电源。 ( 3) When selecting a switching regulator power supply, attention should be paid to the power supply overvoltage protection method. The motor will feed back energy to the power supply under the condition of rapid deceleration under load to cause the voltage to increase. Some power supplies will be shut down directly after overvoltage, resulting in disconnection, so it cannot be used. Select this type of power supply with overvoltage protection shutdown.