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SHENZHEN just motion control electromechanics co.,ltd.
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AC SERVO DRIVER MCAC808

Product Details:
Model:
MCAC808
Select Payment and Shipping Terms:
Min. Order Quantity:
1
Place of Origin:
Min. Order:
FOB Price:
0.00-0.00 /
Shipping Terms:
Shippment Port:
SHENZHEN
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Production Capacity:
5000 Piece/Pieces per Month
Delivery Time:
Packaging:
41X31X25.5CM(30PCS/CARTON)

Detailed Product Description

MCAC808 all-digital AC servo drive system adopts high-performance digital signal processor (DSP) and integrated circuit, and come out to be a cost effective product with simple circuit, high integration, easy operation, and strong practicability. MCAC808 provide three feedback loops: position loop, velocity loop and current loop. Three work control mode: position, velocity and torque. MCAC808 matches with AC servo motor under 80V and 400W.

 

Features

Position control: light isolate input PULSE/DIRECTION or CW/CCW signal;

Speed control: input simulate 0-3.3V voltage signal (speed input by P1);

Torque control: input simulate 0-3.3V voltage signal (torque input by P1);

Light isolation servo reset input interface ERC;

Light isolation servo failure alarm output interface ALM;

Width of current loop (-3dB) 2KHz (standard);

Width of velocity loop: 500 Hz (standard);

Width of position loop: 200 Hz (standard);

Quadrature encoder input interface at motor side: differential input (26LS32);

Allow parameters download by pc or text displayer through interface RS232C;

Perfect protection against overload, I2T, over-voltage, over current, overheating, short circuit, circuit interruption, chip damage;

Green light for on, red light for protected mode or offline.

 

Specification

Input DC voltage range 30—80v(standard);

Continuous Output power:400W;

Continuous output current: 8A ,20KHz PWM;

Overload output current: 24A(3s);

Protection:

Over current initiated peak value: 50A±10%;

Overload I2T current initiated value: 300% 5s;

Overheating initiated value: 80;

Over voltage initiated value: 90V;

Under Voltage initiated value: 24V;

 

Maximum pulse input frequency:300K;

Maximum RS232C speed: 19.6Kbps (an extra transfer interface required);

Working environment:

No dust, no oil mist and no corrosive air;

Working temperature: 0-50;

Storage temperature: -20--+80;

Humidity:40-90RH;

Cooling method: natural air cooling and forced air cooling;

 

Dimension: 140 x 97 x 48 mm

Weight: about 500g

 

 

Parameter adjusting and setting

(potentiometer adjusting, CCW to minimize value, CW to maximize value)

 

A) Four pins on the Circuit Board for control mode setting, 1, 2, 3, 4 respectively from the outer side.

1.      no plug in, position mode is pulse/direction;

2.      plug in 1, speed control, speed input by P1;

3.      plug in 2, torque control, torque input by P1;

4.      plug in 1 and 2, position control for positive pulse/negative pulse input;

5.      plug in 3, position control pulse/direction, but converse running direction.

 

B) 11 scale on the potentiometer, CCW to minimize the value to 0, CW to maximize the value to 10, and 5 in the middle.

P1 : Position Feed-forward Control

P2: position proportional gain control

P3: position differential control

P4 : velocity proportional gain control

 

Servo system includes three feedback loop: position, velocity and torque(current). The inner loop responses with the fastest speed, and the middle loop must responses faster than the outer loop. A vibration will happen when the rule has not been followed. Customer need adjust the parameter of position loop and velocity loop only. Parameters of system would restrict each other, the output of position feedback would be unstable when just only the position feedback gains, which would lead to an unstable result of the whole servo system. Customer might take the following adjustment procedure as a reference:

1.      set P1 and P3 to (3) on the potentiometer, set the P2 and P4 to (3), and then increase the P4 slowly till a vibration happens, then return 0.5 to 1 scale.

2.      increase the P2 till a vibration happens, and then increase the P3 till the vibration disappears.

3.      increase the P1 to fulfill a minimum lag and overshoot.

4.      decrease the P4 properly when a vibration happens during the motor operation.

5.      decrease the P2 or increase the P3 properly when a vibration happens when the motor stop.

6.      decrease the current properly when a magnet noise happens.

 

Maximize the P2 under the condition of none overshoot and no vibration. And then minitrim the P4, P1 and P3 till a perfect setting.

 

Ports detail

X1: control signal input / output (D9 male)

Terminal block

Sign

Name

Note

1

DIR+

Positive direction input

Active-high

6

DIR-

Negative direction input

Active-low

2

PUL+

Pulse positive input

Active-high

7

PUL-

Pulse negative input

Active-low

3

ERC+

Positive servo reset input

Active-high

8

ERC-

Negative servo reset input

Active-low

4

ALM

Alarm output signal

Open collector output

5

INPOS

In position Output signal

Open collector output

9

EGND

Output ground

Open collector output ground

 

X2: feedback signal input of encoder(D15 female)

Terminal block

Sign

Name

shuoming

1

GND

Output power ground

 

2

VCC

Output power

50mAh

3

PW+

Positive input of magnet W phase

Single end connection

4

PV+

Positive input of magnet V phase

Single end connection

5

PU+

Positive input of magnet U phase

Single end connection

6

PZ+

Positive input of encoder Z phase

 

7

PB+

Positive input of encoder B phase

 

8

PA+

Positive input of encoder A phase

 

9

 

 

 

10

PW-

Negative input of magnet W phase

 

11

PV-

Negative input of magnet V phase

 

12

PU-

Negative input of magnet U phase

 

13

PZ-

Negative input of encoder Z phase

 

14

PB-

Negative input of encoder B phase

 

15

PA-

Negative input of encoder A phase

 

 

X3: power

Terminal block

Sign

Name

Note

1

W

Motor terminal W

 

2

V

Motor terminal V

 

3

U

Motor terminal U

 

4

VDC

DC power input

 

5

GND

Power input ground

 

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