Leadshine Technology Co. CS-D508 User manual

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
User Manual
CS-D508
Closed Loop Stepper Drive
Revision 3.1
©2018 Leadshine Technology Co., Ltd.
Leadshine Technology Co., Ltd (Headquarters)
Address: Floor 11, BlockA3, iPark
1001 Xueyuan Avenue
Shenzhen, Guangdong 518055
China
Tel: [phone]
Fax: [phone]
Web: www.leadshine.com
Sales: [e-mail]
Support: [e-mail]
Leadshine America, Inc.
Address: 26050 Towne Centre Dr.
Foothill Ranch, CA 926
USA
Tel: [phone]
Fax: [phone]
Web: www.leadshineusa.com
Sales: s[email protected]m
Support: [e-mail]

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Notice
Read this manual carefully before any assembling and using. Incorrect handling of products in this manual can result in
injury and damage to persons and machinery. Strictly adhere to the technical information regarding installation
requirements.
This manual is not for use or disclosure outside of Leadshine except under permission. All rights are reserved. No part
of this manual shall be reproduced, stored in retrieval form, or transmitted by any means, electronic, mechanical,
photocopying, recording, or otherwise without approval from Leadshine. While every precaution has been taken in the
preparation of the book, Leadshine assumes no responsibility for errors or omissions. Neither is any liability assumed
for damages resulting from the use of the information contained herein.
This document is proprietary information of Leadshine that is furnished for customer use ONLY. Information in this
document is subject to change without notice and does not represent a commitment on the part of Leadshine.
Therefore, information contained in this manual may be updated from time-to-time due to product improvements, etc.,
and may not conform in every respect to former issues.
Record of Revisions
Revision Date Description of Release
1.0
September, 2017
Initial Release
3.1
October, 2018
Firmware and PC software update to version 3.1

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Table of Content
1. Introduction..................................................................................................................................................................1
1.1 Features................................................................................................................................................................1
1.2 Applications.........................................................................................................................................................1
2. Specifications................................................................................................................................................................2
2.1 Electrical Specifications ......................................................................................................................................2
2.2 Environment ........................................................................................................................................................2
2.3 Mechanical Specifications...................................................................................................................................3
2.4 Heat Dissipation...................................................................................................................................................3
3.1 Connector P1 – Control and Digital Output Connections....................................................................................4
3.1.1 Pin Assignments of P1..............................................................................................................................4
3.1.2 Typical Control and Fault Output Connections ........................................................................................6
3.2 Connector P2 - Encoder Connection....................................................................................................................7
3.3 Connector P3 - Motor Connection.......................................................................................................................7
3.4 Connector P4 – Power Supply Connection..........................................................................................................7
3.5 Connector P5 – RS232 Connection.....................................................................................................................8
3.6 LED Light Indication...........................................................................................................................................8
4. Motor Selection............................................................................................................................................................8
5. Power Supply Selection...............................................................................................................................................8
5.1 Regulated or Unregulated Power Supply.............................................................................................................9
5.2 Power Supply Sharing .........................................................................................................................................9
5.3 Selecting Supply Voltage.....................................................................................................................................9
6. DIP Switch Configurations .........................................................................................................................................9
6.1 Microstep Resolution (SW1-SW4)....................................................................................................................10
6.2 Other DIP Switch Settings (SW5-SW8)............................................................................................................ 11
7. Typical Connection.................................................................................................................................................... 11

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
8. Sequence Chart of Control Signals .......................................................................................................................... 11
9. Fault Protections........................................................................................................................................................12
10. Software Configuration...........................................................................................................................................13
11. Accessories................................................................................................................................................................13
12. Troubleshooting .......................................................................................................................................................14
13. Warranty ..................................................................................................................................................................16
AppendixA. Leadshine CS-D508 Compatible Stepper Motors..............................................................................17
Appendix B. Leadshine CS-D508 Compatible Power Supplies..............................................................................18
Appendix C. Powering a Third Party Motor with CS-D508...................................................................................19

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 1
1. Introduction
Leadshine CS-D508 is a closed loop stepper drive designed to solve the loss of step problem in open loop stepper
control systems, thus increase system reliability at minimal cost increase. It implements advanced control algorithm of
Leadshine based on its tens of years’experience in stepper and servo controls. The CS-D508 is highly reliable and
affordable and performs excellent in many industrial applications such as CNC, medical, electronics, packaging...
The CS-D508 can power 2-phase NEMA 17, 23, and 24 stepper motors with incremental encoders. Compared with
traditional open loop stepper systems, a CS-D508 adopted closed loop step system can eliminate potential loss of step,
make real-time position error correction, and do not need torque reservation (100% torque implementation). Also it can
power the driven stepper motor with reduced heating, lower noise, low vibration…
1.1 Features
No loss of step
No torque reservation
No hunting or overshooting
No tuning for easy setup
Capable of powering NEMA 8-34 stepper motors with rotary encoders
Configurable mode for enhanced performance for applications of extra low speed and fast acceleration
Configurable digital output for Fault Output, In Position, or Brake Control
Excellent torque, low noise & vibration, smooth motion
Step & direction or CW/CCW control modes
20-50VDC supply voltage, max 8Aoutput current
Max 200 KHz input frequency
15 micro step settings of 800-51,200 via DIP switches, or 200-51,200 by software
1.2 Applications
When a CS-D508 closed loop stepper drive is implemented with a compatible stepper motor with encoder, the closed
stepper system can be adopted in many small to median speed applications such as CNC routers, CNC mills, CNC
laser cutters, CNC plasma, lab automation instruments, plotters, medical equipment, electronic equipment, small
packaging machines, etc.

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 2
2. Specifications
2.1 Electrical Specifications
Parameters Min Typical Max Unit
Output Current 0.5 - 8.0(Peak) A
Operating Voltage 20 24, 36, 48 50 VDC
Logic signal current 7 10 16 mA
Pulse input frequency 0 - 200 kHz
Minimal pulse width 2.5 - - μS
Minimal direction setup 5.0 - - μS
Isolation resistance 500 MΩ
2.2 Environment
Cooling Natural Cooling or Forced Cooling
Operating Environment
Environment Avoid dust, oil fog and corrosive gases
Ambient Temperature 0°C －65°C (32°F - 149°F)
Humidity 40%RH－90%RH
Operating Temperature 0°C －50°C (32°F - 122°F)
Vibration 10-50Hz / 0.15mm
Storage Temperature -20°C －65°C (-4°F - 149°F)
Weight Approx. 280 g (9.9 Oz)

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 3
2.3 Mechanical Specifications
(unit: mm [1inch=25.4mm])
Figure 1: Mechanical specifications
2.4 Heat Dissipation
CS-D508 reliable working temperature should be no more than 60℃(140°F)
It is recommended to mount the drive vertically to maximize heat dissipation. Mount a cooling fan nearby if
necessary.
If multiple CS-D508 drives are installed, it is suggested to keep a minimal 30mm (12 inches) between two of
them.

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 4
3. Connections and LED Indication
A CS-D508 closed loop stepper drive has 5 connection blocks from P1 to P5 (see figure 2).
Figure 2: CS-D508 connectors
3.1 Connector P1 – Control and Digital Output Connections
3.1.1 Pin Assignments of P1
The P1 connector in Figure 2 are used for connections of input control signals and one configurable digital output.
a) Pinout Definitions
There are 3 control signals for pulse, direction, and enable. See the following table for details.
Pin Name I/O Details
PUL+ I Pulse signal: (1). In single pulse (pulse & direction) control mode, this input represents pulse
signal.A pulse signal is active at the rising or falling voltage edge (set by DIP switch SW8).
(2). In double-pulse (CW/CCW) control mode (set by DIP switch SW7), this signal input
represents clockwise (CW) pulse, and is active at both high voltage level and low voltage level.
(3). 4.5-24V for voltage HIGH, 0-0.5V for voltage LOW (same for DIR and ENA signals). (4).
Pulse width should be set to 2.5μs or longer.
PUL- I
DIR+ I Direction signal: (1). In single pulse (step & direction) control mode, this signal’s low and high
voltage levels represent the two directions of motor rotation (e.g. clockwise and

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 5
DIR- I
counterclockwise). (2). In double-pulse (CW & CCW) control mode, this signal represents
counterclockwise (CCW) rotation. It is active at both voltage high level and low level. (3).
Minimal DIR signal setup time should be at least 5μs. (4). You can reverse the default rotation
direction by toggling the SW5 DIP switch.
ENA+ I Enable signal: This signal is used for enabling/disabling the drive. High voltage level of 5-24V
(NPN control signal) for enabling the drive and low voltage level of 0-0.5VDC for disabling the
drive. PNP and Differential control signals are on the contrary, namely Low level for enabling.
By default this signal is left UNCONNECTED & ENABLED.
ENA- I
ALM+ O Configurable Digital Output Signal: A configurable OC output signal. It takes a sinking or
sourcing 20mA current at 5-24V. It can to be configured as one of the 3 types, FAULT
OUTPUT (default), IN POSITION, or BRAKE CONTROL through Leadshine ProTuner CS-D
software.
ALM- O
Notes: (1) Shielding control signal wires is suggested; (2) to avoid/reduce interference, don’t tie control signal cables
and power wires together.
b) Fault Output, In Position, or Brake control Output Configuration
The digital output on the P1 connector, marked as ALM+ & ALM-, is software configurable (read ProTuner CS-D
software manual). It can be configured as one of the available 3 options – “Fault Output”, “In Position”, and “Brake
Control”. Those 3 options are described as below:
•Fault Output
The FAULT output is the default configuration. It signals a fault condition of CS-D508, including over-voltage,
over-current, or position following error. This output can be used to drive devices such as a relay, a LED, etc.; or as
an input signal for a PLC or I/O devices.
For example, for a multi-axis CNC machine, when one of the axes fails, such a fault output signal can be sent to
the motion controller of the machine and trigger an automatic machine shutdown.
•In Position
Use Leadshine ProTuner for CS-D software to configure this output as an IN POSITION output. In this case a
digital output signal will be sent out, when the targeted position is in the “Target Range” (refer to parameter
Distance to Send "In position" Output Signal in software manual).
•Brake Control
Use Leadshine ProTuner for CS-D software to configure this output as a BRAKE CONTROL output. In this case,
this signal can be used for automatic brake control while system power failure.

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 6
It is recommended to connect a fly-wheel diode in parallel to a 24VDC relay and brake coil connection. Refer to
the following figure for brake connection.
+24VDC
GND
CS-D508
ALM+
ALM-
Brake
Coil
24VDC
Relay
3.1.2 Typical Control and Fault Output Connections
The CS-D508 can accept differential and single-ended control signal inputs (open-collector and PNP output). A CS-
D508 has 3 optically isolated control inputs, PUL, DIR, and ENA. Refer to the following two figures for connections
of open-collector and PNP signals.
Controller
Control Signal
Connector
PUL+ 1
DIR+ 3
PUL-
DIR-
2
4
ENA+ 5
ENA- 6
VCC = 5-24V
5V recommended
Step
Direction
Enable
VCC
VCC
VCC
Fault
5V
ALM+ 1
2
ALM-
Status Signal
Connector
CS-D508
Controller
Control Signal
Connector
VCC = 5-24V
5V recommended
Fault
5V
ALM+ 1
2
ALM-
Status Signal
Connector
CS-D508
PUL+ 1
DIR+ 3
PUL-
DIR-
2
4
ENA+ 5
ENA- 6
5-24V
5V recommended
Step
Direction
Enable
Figure 3: Connections to PNP signal Figure 4: Connections to open-collector signal

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 7
(Common-cathode) (Common-anode)
3.2 Connector P2 - Encoder Connection
The P2 connector in Figure 2 is for encoder signal connection. Refer to the following table for details.
Drive Pin Name Description
EB+ Encoder B+ input connection
EB- Encoder B- input connection
EA+ Encoder A+ input connection
EA- Encoder A- input connection
VCC Encoder +5V voltage output connection
EGND Power ground connection
Notes: encoder resolution must be 1000-line.
3.3 Connector P3 - Motor Connection
The P3 connector in Figure 2 is for motor connection. Refer to the following table for details.
Pin Name Details
A+ Stepper motor A+ connection. Connect motorA+ wire to this pin
A- Stepper motor A- connection. Connect motorA- wire to this pin
B+ Stepper motor B+ connection. Connect motor B+ wire to this pin
B- Stepper motor B- connection. Connect motor B- wire to this pin
3.4 Connector P4 – Power Supply Connection
The P4 connector in Figure 2 is for power supply connection. Refer to the following table for details.
Pin Name Details
+Vdc Power supply positive connection. 20-50VDC power supply voltage
GND Power supply ground connection.
Notes: see Appendix B for compatible Leadshine power supplies

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 8
3.5 Connector P5 – RS232 Connection
The P5 connector in Figure 2 is a RS232 communication port for PC connection. Refer to the following pin definitions.
RS232 Communication Port – RJ11
Pin
Name
I/O
Description
1
NC
-
Not connected.
2 +5V O +5V power output.
3 TxD O RS232 transmit.
4
GND
GND
Ground.
5 RxD I RS232 receive.
6 NC - Not connected.
Notes: RS232 connection of CS-D508 is for tuning purpose only, not for RS232 command controls.
3.6 LED Light Indication
There are two LED lights for CS-D508, one red and one green. The GREEN one is the power indicator which will be
always on generally. The RED one is a protection indicator. It is off always when a CS-D508 operates normally, but
will flash 1, 2 or 7 times in a 5-second period when error protection is enabled. Different number of flashes indicates
different protection type (read Section 9).
4. Motor Selection
The CS-D508 is designed to power 2-phase (or 4-phase 0.9 degree) NEMA17/23/24 stepper motors under 10000-line
incremental encoders (recommend 1000-line). Leadshine offers many high performance stepper motors compatible
with the CS-D508 which you can find in theAppendix A of this document. The CS-D508 can also power similar
stepper motors with incremental encoders from third-party suppliers.
5. Power Supply Selection
The CS-D508 can power small and medium size closed loop stepper motors (frame size from NEMA17 to 24) from
Leadshine (see Appendix A) or other motor manufacturers. To get good system performance, it is important to select
proper supply voltage and output current. Generally speaking, supply voltage determines the high speed performance
of the motor, while output current determines the output torque of the driven motor (particularly at lower speed).
Higher supply voltage will allow higher motor speed to be achieved, at the price of more noise and heating. If the
motion speed requirement is low, it’s better to use lower supply voltage to decrease noise, heating and improve

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 9
reliability.
Notes: See Appendix B at the end of this document for Leadshine CS-D508 compatible switching power supplies
specially designed for stepper & servo controls.
5.1 Regulated or Unregulated Power Supply
Both regulated and unregulated power supplies can be used to supply the drive. However, unregulated power supplies
are preferred due to their ability to withstand current surge and fast response for current change. If you prefer to a
regulated power supply, it is suggested to choose such a power supply specially designed for stepper/servo controls
such as Leadshine RPS series (http://www.leadshine.com/producttypes.aspx?producttype=regulated-switching). Or, in
the case when only normal switching power supplies are available, it is important to use “OVERSIZE” high current
output rating power supplies (for example, using a 4Apower supply for 3A stepper motor) to avoid problems such as
current clamp. On the other hand, if unregulated supply is used, one may use a power supply of lower current rating
than that of motor (typically 50%-70% of motor current). The reason is that the drive draws current from the power
supply capacitor of the unregulated supply only during the ON duration of the PWM cycle, but not during the OFF
duration. Therefore, the average current withdrawn from power supply is considerably less than motor current. For
example, two 3A motors can be well supplied by one power supply of 4Arating.
5.2 Power Supply Sharing
Multiple CS-D508 drives can share one power supply to save space and reduce cost, if that power supply has enough
power capacity. To avoid cross interference, connect each stepper drive directly to the shared power supply separately.
To avoid cross interference, DO NOT daisy-chain connect the power supply input pins of the Drivers. Instead connect
them to power supply separately.
5.3 Selecting Supply Voltage
The CS-D508 is designed to operate within 20-50VDC voltage input. When selecting a power supply, besides voltage
from the power supply power line voltage fluctuation and back EMF voltage generated during motor deceleration
needs also to be taken into account. Ideally it is suggested to use a power supply with the output of 20-48VDC, leaving
room for power line voltage fluctuation and back-EMF.
Higher supply voltage can increase motor torque at higher speeds, thus helpful for avoiding losing steps. However,
higher voltage may cause bigger motor vibration at lower speed, and it may also cause over-voltage protection or even
drive damage. Therefore, it is suggested to choose only sufficiently high supply voltage for intended applications.
6. DIPSwitch Configurations
The CS-D508 has a built-in 8-bit DIP switch to set microstep resolution, motor direction, auto-tuning switch and so on.

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 10
Figure 5 DIP switch Setting
6.1 Microstep Resolution (SW1-SW4)
Microstep resolution is set by SW1, 2, 3, 4 of the DIP switches as shown in the following table:
Steps/Revolution SW1 SW2 SW3 SW4
Software Configured (Defaulted to 1600) on on on on
800 off on on on
1600 on off on on
3200 off off on on
6400 on on off on
12800 off on off on
25600 on off off on
51200 off off off on
1000 on on on off
2000 off on on off
4000 on off on off
5000 off off on off
8000 on on off off
10000 off on off off
20000 on off off off
40000 off off off off

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 11
6.2 Other DIP Switch Settings (SW5-SW8)
Function On Off
SW5 Default Direction CW (clockwise) CCW (counterclockwise)
SW6 Auto Tuning No Yes
SW7 Pulse Model CW/CCW (double pulse) PUL/DIR (single pulse)
SW8 Pulse Edge Falling Rising
7. Typical Connection
A complete closed loop stepper system should include a stepper motor with encoder, CS-D508 drive, power supply and
controller (pulse generator).A typical connection is illustrated in figure 6.
GND
A+
A-
+Vdc
Encoder Signal
Connector
1
5
6
Power &
Motor Connector
Controller
Black
Red
Control Signal
Connector
4
PUL+ 1
DIR+ 3
PUL-
DIR-
2
4
ENA+ 5
ENA- 6
5V
Step
Direction
Enable
EA+: BLK EA-: BLU
EB+: YEL EB-: GRN
+5V: RED GND: WHT
Fault
5V
ALM+ 1
2
ALM-
Status Signal
Connector
24-48VDC recommended,
leaving rooms for voltage fluctuation
and back EMF of the motor
2
Encoder
Extension Cable* Encoder
Cable
*must be used
Power
Extension Cable
Power
Cable
3B+
B-
Yellow/Green
Blue
CS-D508
Figure 6: Typical connection
8. Sequence Chart of Control Signals
In order to avoid some fault operations and deviations, PUL, DIR and ENA should abide by some rules, shown as
following diagram:

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 12
Figure 7: Sequence chart of control signals
Remark:
a) t1: ENA must be ahead of DIR by at least 500ms. Usually, ENA+ and ENA- are NC (not connected). See
“Connector P1 Configurations” for more information.
b) t2: DIR must be ahead of PUL effective edge by 5us to ensure correct direction;
c) t3: Pulse width not less than 2.5us;
d) t4: Low level width not less than 2.5us.
9. Fault Protections
To improve reliability, the drive incorporates some built-in protection features.
Priority
Time(s) of
Blink Sequence wave of red LED Description
1st 1
Over-current protection activated when peak
current exceeds the limit.
2nd 2
Over-voltage protection activated when drive
working voltage is greater than 90VDC
3nd 7 Position following error
0.2S
5S
0.2S
0.3S
5S
0.2S
0.3S
5S

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 13
When above protections are active, the motor shaft will be free or the red LED blinks. Reset the drive by repowering it
to make it function properly after removing above problems.
10. Software Configuration
The CS-D508 is designed for simple setup and implementation. For most applications no software configuration or
tuning is needed especially when driving Leadshine stepper motors with encoders (seeAppendixA). If you want to do
fine tuning or custom configurations such as micro-step, current percentage change…, you can use Leadshine’s free
ProTuner software to make the changes.
11. Accessories
If you plan to use the ProTuner software, contact your supplier or Leadshine to purchase the RS232 cable with part
number CABLE-PC for connecting the CS-D508 to a computer with Windows 7/8/10 installed. In the case of using
USB to RS232 conversion, contact your supplier or Leadshine for such a cable with part number USB2.0-232 which
has been verified working fine.
CABLE-PC USB2.0-232
(RS232 tuning cable) (USB to RS232 Conversion Cable)

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 14
12. Troubleshooting
In the event that your drive doesn’t operate properly, the first step is to identify whether the problem is electrical or
mechanical in nature. The next step is to isolate the system component that is causing the problem. As part of this
process you may have to disconnect the individual components that make up your system and verify that they operate
independently. It is important to document each step in the troubleshooting process. You may need this documentation
to refer back to at a later date, and these details will greatly assist our Technical Support staff in determining the
problem should you need assistance.
Many of the problems that affect motion control systems can be traced to electrical noise, controller software errors, or
mistake in wiring.
Symptoms Possible Problems Solutions
Motor is not rotating
No power Connect power supply correctly
Microstep resolution setting is wrong Setting appropriate microstep
Fault condition exists Check wiring and restart power
The drive is disabled Drive restore factory setting, and keep
ENA+, ENA- input signals unconnected.
Wrong motor rotation direction The Direction signal level is reverse Toggling the SW5 DIP switch
The drive in fault
Red light flashes once in a 5-second
period
The motor coil may short circuit or exiting
the wrong wiring
Red light flashes twice in a 5-second
period
The power supply exceeds Max. operation
voltage
Red light flashes 7-times in a 5-second
period
If using Leadshine’s motor, refer to motor
wiring in datasheet;If using 3rd motor,
need to swap the wiring of motor phase
A+ and phase A-
Red light is always on after power on The drive is burned
Erratic motor motion
Control signal is too weak Ensure the current of control signal is
within 7-16mA
Control signal is interfered Don’t tie the control signal cable with
power cable together
Wrong motor connection Refer to user manual of drive and motor

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 15
datasheet
Something wrong with motor coil Check the motor is normal
Motor stalls during acceleration
Current setting is too small
Choose another power supply with lager
power or increase the output current of
drive
Motor is undersized for the application Choose another motor with higher torque
Acceleration is set too high Reduce the acceleration
Power supply voltage too low Choose another power supply with large
voltage output
Excessive motor & drive heating
Inadequate heat sinking / cooling Refer to chapter 2.4
Motor peak current setting is too high Reduce the current value refer to motor
datasheet
Motor vibration when power on Speed loop Kp is too high Reduce the speed loop Kp value

CS-D508 Closed Loop Stepper Drive User Manual Version 3.1
Page | 16
13. Warranty
Twelve Month Warranty
Leadshine Technology Co., Ltd. warrants its products against defects in materials and workmanship for a period of 12
months from shipment out of factory. During the warranty period, Leadshine will either, at its option, repair or replace
products which proved to be defective.
Exclusions
The above warranty does not extend to any product damaged by reasons of improper or inadequate handlings by
customer, improper or inadequate customer wirings, unauthorized modification or misuse, or operation beyond the
electrical specifications of the product and/or operation beyond environmental specifications for the product.
Obtaining Warranty Service
To obtain warranty service, please contact your seller to obtain a returned material authorization number (RMA) before
returning product for service.
Shipping Failed Products
If your product fail during the warranty period, please contact your seller for how and where to ship the failed product
for warranty or repair services first, you can also e-mail customer service at [email protected] to obtain a returned
material authorization number (RMA) before returning product for service. Please include a written description of the
problem along with contact name and address.