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KJD series Ac servo driver

KJD series Ac servo driver

KJD series is a high-performance, cost-effective all-digital AC servo driver launched by our company.

Features: High-performance ARM processor + FPGA framework is used for high-speed signal acquisition and data processing, and the use of intelligent power module (IPM), compared with the using of low-cost FET single-tube assembly solution, can accurately control motor current. With the advanced and optimized control algorithm, it can accurately control the torque, speed and position of the motor. It ensures the smooth operation of the motor and quick setting.

Product Details

Technical parameter


Power supply(V)

Single/three phase
AC220V -15% ~ +10% 50/60HZ



1 2 5.5

Rated current(A)






Peak current (A)






Working temperature

Working:0 ~ 45℃ Storage:-20 ~ 65℃

Environment temperature

Working:40% ~ 80%(No frosting) Storage:below 93% (No frosting))

Protection level


Control method

PWM Sine wave vector control


Regenerative braking


Built-in / External optional

Feedback method

Incremental / line-saving encoder, Tamagawa absolute encoder

Field bus

EA series is compatible with EtherCAT Industrial Ethernet field bus;

MA series is compatible with Mechatrolink-III industrial Ethernet field bus;

Bus-type products support the expansion of the internal IO of the servo drive into the IO of the system PLC;

Control mode

Position, speed, torque


Up to 11 input terminals (photoelectric isolation), the function can be configured as:

Control input

SVON, A-CLR, CCWL, reverse drive prohibition, forward torque limit, reverse torque limit, zero speed clamp, internal speed selection 1, internal speed selection 2, internal speed selection 3, internal Torque selection 1, internal torque selection 2, emergency stop, control mode switching, gain switching, electronic gear selection 1, electronic gear selection 2, position deviation clear, pulse input prohibition, origin return trigger,origin return reference point.


Up to 8 output terminals (photoelectric isolation), the function can be configured as:

Control output

Servo ready, alarm, zero speed, positioning completed, speed reached, torque reached, electromagnetic brake, servo running, near positioning, torque limit, speed limit, origin return completed。

Encoder signal output

signal type

A, B, Z differential output, Z signal open collector output

Frequency division ratio

Incremental: TSVB-PB-1: 1; TSVB-PA- configurable through parameter PA78; Absolute value: configurable through parameter PA78;


Command mode

Direction + pulse sequence; CW + CCW pulse sequence; two-phase A / B quadrature pulse; internal position command;


Input frequency

Low-speed pulse command port: differential input ≤ 500kpps, single-ended input ≤ 200kpps;


High-speed pulse command port: differential input ≤ 4Mpps;


Electronic gear ratio

Numerator: 1~ 32767, denominator: 1~32767


Analog command input

Support, -10 ~ + 10V input


Command acceleration and deceleration speed

parameter settings


Command source

Internal speed command, analog command


Analog command input

Support, -10 ~ + 10V input


Speed limit

parameter settings


Command source

Internal torque command, analog command

Special function

Return to origin, gain switching, mechanical resonance notch filter

Monitoring function

Speed, current position, position deviation, motor torque, motor current, command pulse frequency, etc.

Protective function

Over speed, over voltage, over current, over load, abnormal braking, abnormal encoder, excessive position, etc.


Speed frequency response

TSVB- □ B: ≥ 800Hz;TSVB- □ A: ≥ 1500Hz


Speed fluctuation rate

≤ ± 0.03% (load 0 ~ 100%); ≤ ± 0.02% (power supply -15 ~ + 10%)


Speed ratio



Model identification



Design sequence: 1: First generation 2: Second generation 3: Third generation (pulse interface) 4: Fourth generation (Ether CAT interface)


2S: single-phase / three-phase 220V
2T: Three-phase 220V
4T: Three-phase 380V

Output power

Encoder type

A: 2500 lines
B: 17bit
F: absolute value & incremental

Special specifications
01: Basic model