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AS850T Spindle Servo Drive (Spindle Frequency Inverter)

AS850T is a new tailor made spindle controlling frequency inverter (servo drive) for CNC, machining center, packing, textile, etc. It can achieve to high accuracy speed, torque and position control through close loop servo control, which based on brand new hard ware and soft ware platform.
Perfect performance and powerful function is your machine best selection.


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Output Frequency Range: 0 To 1000Hz.
Input Voltage: 3 Phase 380V±15%, 2.2kw To 75kw.
Control Mode: Current/Flux Vector Control, Close Loop Vector Control
Protection Function: Over Current, Over Voltage, Power Module Overheat, Under Voltage, Over Load, Input/Output Phase Missing, Motor Short Circuit Protection.
Cooling Way: Force Cooling.
Mounting Way: Wall Mounting.

Function: Speed control, torque control, position control, synchronous pulse control.


AS850T Spindle Servo Drive (Spindle Frequency Inverter)

Function features

AS850T Spindle Servo Drive (Spindle Frequency Inverter)


Software function

FunctionApplicationPurposefunction describe
points positioningmechanical transmissionauto process controlThe servo motor will run when receiving a command, and move to setting point. When arriving the set point, it will stop and sent a signal back
reciprocating position runningmechanical transmissionauto process controlPerform reciprocating movement between two points, the speed can be set.
multiple points positioningmechanical transmissionauto process controlUp to 256 points can be set. When corresponding input signal is valid, motor will move to that point.
synchronous drivingmechanical transmissionsynchronous speed controlThe motor speed swill synchronize with the input pulses, the synchronize ratio can be set. Used in print and textile. Etc filed
torque controlpressing machineoutput torque adjustableThe motor torque can be adjusted by analog input or communication method. Ensure every motor has the same torque
cut to lengthtransverse cutter,auto to realize fixed length cuttingThe drive will measure the cutting length by external encoder, and calculate the initial point, it will activate cutting when arriving the cutting length.
parallel driveroller railto realize same outputTo achieve the same output for every motor when multiple drives serving a load by communication mode.


Main features of AS850 Servo Drive

Points positioning control
The pulse can be set by functional code, even no pulse command, the position control of fix route can set by external terminal as well.

AS850T Spindle Servo Drive (Spindle Frequency Inverter)

Pulse synchronization position control
To achieve high accuracy continuous route control by pulse train, also can realized multiple motor synchronous speed control by pulse train.

AS850T Spindle Servo Drive (Spindle Frequency Inverter)

Reduce the speed response effectively by variable gain control. Compare to previous products, the deceleration time reduce sharply.

AS850T Spindle Servo Drive (Spindle Frequency Inverter)

Zero speed servo control
It will automatically go to 0 speed servo control status and keep still when motor speed low to 0 value. AS850T can output 180% rated torque output with PG connection.


Electric gear

Through gear ratio of electric gear setting, can set motor movement value that equivalent to input pulse freely. Configure 4 groups electric gear, it can be set freely by terminal configuring.

AS850T Spindle Servo Drive (Spindle Frequency Inverter)


Good spray paint for all PCBA to ensure can work in hard environment.

AS850T Spindle Servo Drive (Spindle Frequency Inverter)


Plug able terminals for easy wiring.

AS850T Spindle Servo Drive (Spindle Frequency Inverter)


Control mode of AS850 AC Servo Drive

Speed Control Mode
Speed control range: 1:5000
Speed control precision: ± 0.1%
Frequency resolution: 0.01Hz
Constant torque output
AS850T Spindle Servo Drive (Spindle Frequency Inverter)
Positioning control mode

Positioning control accuracy:±1 pulse.

Positioning control range: 4 Byte pulse,

starting, braking, stop curve can be adjustable

AS850T Spindle Servo Drive (Spindle Frequency Inverter)
Torque Control

Constant torque output under basic frequency

Torque control range 0 to 300% rated torque,

Torque control precision: ± 5%
Torque keeping under 0 speed
AS850T Spindle Servo Drive (Spindle Frequency Inverter)
Synchronous control

Master and slave control, or control multiple

servo motors by external PG card to realized

same speed control, electronic gear, following

speed accuracy ±1 pulse.

AS850T Spindle Servo Drive (Spindle Frequency Inverter)



Technical Specification
Inputrate voltage380V+ 10% -15%
rated frequency50/60Hz
Outputoutput voltage0-380V
output frequency range0-1000Hz
Control featurecontrol modecurrent/flux, close loop vector control
starting torque0.0Hz 180%
torque limit0-200% rated motor torque
torque control accuracy±5%
speed control ratio"1:5000
speed control accuracy±0.1%
position accuracy±pulse no.s
accel./decel. control0.05 to 3000Hz
braking modeDynamic braking, built it braking unit
over load capability150% rated load for 3 min, 200% for 3s
analog input3 ways, -10V to 10V, 0-10V/4-20mA
analog output0-10V/4-20mA
Programmable digital input9 ways digital input, NPN/PNP acceptable
Programmable external pulse inputpulse+ director, quadrature pulse
protection functionover current, over voltage, overheat, under voltage, phase missing, motor short circuit.
environmenttemperature"-25℃to 45℃
humidity< 90% RH, Non-condensate
Vibrationbelow 20Hz, 1G, 20 to 5Hz, 0.2G
Heat dissipationforce cooling
protection gradeIP20



AS850T Spindle Servo Drive (Spindle Frequency Inverter)

1. 8 digital input,

2. built in Can bus, built it PG card, Modbus card

3. 3 analog input, 2 collector output, 2 relay output, 1 analog output. PT100 temperature sensor connection

AS850T Spindle Servo Drive (Spindle Frequency Inverter)

Application Illustrates

Application A of CNC filed.

Application features: belt transmission, suits for all CNC system

Function features: speed control for spindle, torque switchover under low speed, fast for acceleration and delectation, energy saving up to 80% when driving no load.

AS850T Spindle Servo Drive (Spindle Frequency Inverter)


Application B For CNC Machine

Application features: synchronous transmission, not request 0 limit switch when drive ratio is 1:1 for C axis of CNC machine.

Function features: speed control for spindle, torque switchover under low speed, fast for acceleration and delectation, energy saving up to 80% when driving no load.

AS850T Spindle Servo Drive (Spindle Frequency Inverter)


Application Of Synchronous Of Multiple Spindle

Application features: suits for application which there are multiple spindles in one CNC machine, drove by difference motor.

Function features: To realized synchronous speed or synchronous position of multiple spindle.

AS850T Spindle Servo Drive (Spindle Frequency Inverter)


Application of CNC CNC milling machine

Application features: it can make 1:1 driving ratio for all CNC system.

Function features: speed/position control of spindle, pulse/ position control, accuracy stop, rigid tapping

AS850T Spindle Servo Drive (Spindle Frequency Inverter)