DC Controller 810



Introduction
 
The DC Controller 810 is a digital DC servo driver developed with DSP and high efficient MOSFET technologies. In position control, it's easy for the end users to change stepping drivers to the DC Controller 810 without changing control systems, because its input command is PUL/DIR signal, which is compatible with that of stepping drivers. In low power motion control applications, performances of DC servo systems using the DC Controller 810 are better than those of digital AC servo systems in velocity, precision, noise, stability, or at least as good as those of digital AC servo systems. However, the cost of the DC Controller 810 stays at the price line of stepping driver, namely far lower than those of AC servo drivers.

Compared to the DC Controller 810S, the DC Controller 810 can accept differential control signals and differential encoder feedback signals, offering better anti-interference performances. Compared to the DB810A, parameter visible tuning tools make the DC Controller 810 much easier to tune.

The DC controller 810 is very easy to tune and all parameters are visible. Parameter visible tuning tools, including Pro Tuner (Windows based setup software) and STU (Small servo tuning unit) can meet different tuning environments or requirements.
 
Features
 
18-80VDC, 0-20A, 20-400W.
Based on DSP control technology and high smooth servo control algorithm.
Parameter visible tuning tools, including Pro Tuner and STU.
Feedback resolution X4 encoder line count.
Position Following error lock range adjustable
Position error can be eliminated to 1 count, and Velocity error can be eliminated to the Desired Velocity* 0.3%
Electronic gear ratio from 1/255 to 255
Built-in motion controller for self-test with trapezoidal velocity profile
Support PUL/DIR and CW/CCW control signals
Opto-isolated inputs, support single-ended and differential signals
10 latest errors self-record function
Over-current, over-voltage, under-voltage, phase error, encoder error, position following error protections
Small size, surface-mount technology
 

 


Applications

Suitable for a wide range of equipments and instruments such as mini type engraving machines, inkjet printers, etc. It performs better in equipments desired for low noise, high velocity, high precision and high reliability.
 
Mechanical Specifications(unit: mm[inch])
Mechanical Specifications 1.gif

Electrical Specifications (Tj = 25oC/77oF)

 
Parameters  
Min Typical Max Unit
Peak output current 0 - 20 A
Supply Voltage +18 - +80 VDC
Logic Signal current 7 10 15 mA
Pulse input frequency 0 - 500 kHZ
Isolation resistance 500     Mohm
Current provided to encoder     50 mA

Connector Configuration
General information
 
Control Signal Connector
Pin Signal Description I/O
1 PUL+ Pulse control signal (+). See more information about PUL in 揗ore about PUL/DIR/EN Signals?section I
2 PUL- Pulse Control Signal(-). I
3 DIR+ Direction Control signal (+). See more information about in ore about PUL/DIR/EN Signals?Section. I
4 DIR- Direction Control Signal (-). I
5 EN+ Enable Control Signal (+). I
6 EN- Enable Control Signal(-). I
Encoder Signal Connector
Pin Signal Description I/O
1 EB+ Encoder Channel B(+) input. I
2 EB- Encoder channel B(-) input . I
3 EA+ Encoder A(+) input. I
4 EA- Encoder Channel A(-) input. I
5 E +5V Positive pole of the auxiliary power supply(50 mA (Max)) O
6 EGND Ground of the auxiliary power supply. GND
 
Pin Signal Description I/O
1 Motor+ Motor positive connection. O
2 Motor- Motor negative connection. O
3 +VDC +18 TO 80VDC power input. I
4 GND Power ground. GND
RS232 Communication Connector
Pin Signal Description I/O
1 NC Not connected. -
2 +5V +5V power Only for STU. O
3 TxD RS232 transmit. O
4 GND Ground. GND
5 RxD RS232 receive. I
6 NC Not connected -

More about PUL/DIR/EN Signals
 
Pin Function Details
PUL+ Pulse signal: In single pulse (pulse/direction) mode, this input represents pulse signal; 4-5V when PUL-HIGH, 0-0.5V when PUL-LOW. In double pulse mode (pulse/pulse) , this input represents clockwise (CW) pulse,effective at LOW level (the fixed level). For reliable response, pulse width should be longer than 1.0µs. Series connect resistors for current-limiting when using +12V or +24V control signals
PUL-
DIR+ DIR signal: In single-pulse mode, this signal has low/high voltage levels, representing two directions of motor rotation(set by inside R33 and R37); in double-pulse mode, this signal is counter-clock (CCW) pulse,effective at LOW level (the fixed level). For reliable motion response, DIR signal should be ahead of PUL signal by 5µs at least. 4-5V when DIR-HIGH, 0-0.5V when DIR-LOW. Please note that motion direction is also related to motor-driver wiring and encoder feedback A/B phase signals. Exchanging the connections of two wires of the motor to the driver and A/B phase signals of encoder will reverse motion direction.
DIR-
EN+ Enable signal: This signal is used for enabling/disabling the driver. High level (NPN control signal, PNP and Differential control signals are on the contrary, namely Low level for enabling.) for enabling the driver and low level for disabling the driver. Usually left UNCONNECTED (ENABLED). Series connect resistors for current-limiting when using +12V or +24V control signals
EN-
 
Encoder Connections
dc encoder 810 2.gif
 
The DC Controller 810 supplies the differential encoder directly

 

dc con 810 3.gif
 
The DC Controller 810 supplies the single-ended encoder directly

 

dc encoder 810 4.gif
 
Using external DC power supply to supply the differential encoder

 

 
dc encoder 810 5.gif
 
Using external DC power supply to supply the single-ended encoder
 
RS232 Interface Connection

 

dc con 810 6.gif
 
RS232 interface connection
 
Professional Servo Tuning Software ProTuner
 
 
Professional Servo Tuning Software ProTuner 7.gif
 
Main Window of ProTuner
 
position Tuning 8.gif
Position following error curve and velocity curve (Kp=3200, Ki=600 and Kd=4000)
Typical Connection

dc con 810 9.gif
 
Open-collector control signal and single-ended encoder
 
dc con 810 10.gif
 
Differential control signal and differential encoder


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