Anaheim Stepper 17MDSI Series Users Guide

							17MDSI Series
Stepper Motor/Driver/Controller 
User’s Guide
910 East Orangefair Lane, Anaheim, CA 92801
e-mail: [email protected](714) 992-6990  fax: (714) 992-0471
website: www.anaheimautomation.com
ANAHEIM AUTOMATION
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							General Description
The 17MDSI Series has a compact construction that integrates a simple in\
dexer/controller, microstepping 
driver and a stepper motor in one stream line package.  With the three parts combined into one casing, 
the need to include motor wires has been eliminated.  The high-torque step motor can generate up to 62 
oz-in of torque.  The microstepping driver will operate from voltages of 12VDC minimum to 35VDC maxi-
mum.  The inputs are capable of running from either open collector,  TTL level logic outputs or 24VDC 
outputs form PLCs and are all active low.  The microstepping driver features resolutions from 200-1600 
steps/revolution, providing smooth rotary operation.  The 17MDSI Series comes in a single shaft version 
with motor stack lengths of 1, 2, or 3 allowing for varying amounts of start-up torque, dynamic torque and 
inertia.  The 17MDSI Series features built in over temperature and short circuit s\
hut down protection.  It 
also has automatic 50% reduction in stepper motor current after indexing\
 is complete and status LED’s 
to indicate power on (green LED) and motor running (yellow LED).
17MDSI Features
• Stepper Motor/Microstep Driver/Controller
• Eliminates Motor Wires
• Microstep Divisors of 8, 4, 2, or Full Step
• Compact Package
• 12-24V Power Requirement
• RS485 Communications
• TTL Logic or 24V Level Inputs Available
• Ideal for Precise Positioning
• 0.225° Resolution at Eighth Step
• Efficient and Durable 
• Long Life Expectancy
Ordering Information - Use the chart to create your specific part Number
Mode 
SeriesMotor 
LengthShaft 
Options
Special Options
17MDSI 102S -01
102, 202, 302 S - Single-Shaft Blank for Standard Product Other Options 
will be created as needed.
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							Control Inputs (Pin 4, 5, 6, 7):
Input 1, 2: Logic “1” (Open) = Not Active
    Logic “0” (0VDC) = Active
Direction:  Logic “1” (Open) = CW
    Logic “0” (0VDC) = CCW
On/Off:   Logic “1” (Open) = On
    Logic “0” (0VDC) = Off
Note:
Open Inputs are inactive and internally pulled up to +5VDC for all 17MDS\
I models
Control Outputs (Pin 8):
Output 1: Open Drain Type Output, Vce (max) = 40VDC, Ic (max) = 50mA
  This output will conduct current when active, and be open when not activ\
e.  Current needs to be  
  limited into this pin.  For the 17MDSI Series, this output is a complete output.
Power Input (Pin 9,10):
VIN:  Input voltage 12VDC minimum, 35VDC Maximum
GND:  Input voltage return or common
Accessories Ordering Information
Part Number Description
PSAM24V2.7A 24V @ 2.7A Universal Input Power Supply
PSAM24V1.2A-5V3.5A 24V @1.2A and 5V @ 3.5A Universal Input Power Supply
485SD9TB Port Powered RS232-RS485 Converter
AA9MFC-6 6 Foot Male to Female Serial Cable
Input Pin Descriptions
Pin # Description
1 RS485 B(+)
2 RS485 A(-)
3 RS485 Gnd
4 Input 1
5 Input 2
6 On/Off
7 Direction In
8 Output 1
9 VIN (12-35VDC)
10 GND (0VDC)
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							Dimensions
Wiring Diagrams
ModelLength
17MDSI102S 2.719”
17MDSI202S 2.956”
17MDSI302S 3.271”
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							Inputs and Outputs
Inputs: All inputs are pulled up to 5VDC. A logic “0” activates inputs that are pulled up.  An un-
connected input will always remain inactive.
Direction: When this input is not active, the motor will be moving in the clockwise or “+” direc-
tion.  When this input is active, the motor will move in the countercloc\
kwise or “-” direction.  This 
input is not read when a software index command is given.  To change direction while using the 
software, change the direction option there.  When two motors are used, the second motor will 
move in the opposite direction by default.
On/Off:  When this input is not active, the motor will enabled or energized.  Whe\
n this input is 
active, the motor will be disabled or de-energized.
Input 1, 2: These inputs are used to select one of the two profiles.  When one of the profiles is 
activated, the unit will change the speeds, acceleration, index number and complete time based 
on  the  pre-programmed  values  or  that  profile  and  begin  the  index.   Activate  only  one  of  these 
inputs at once.
Output 1 (Complete Output):  This is an open collector output that is capable of sinking 50mA.  It 
is current sinking when the indexer finishes its index cycle for the pre-programmed amount of time.
Microstep Modes
The microstepping modes are set by using the software when the profiles are being setup.  The 
ranges of microstepping are 200, 400, 800, and 1600 steps per revolution in a 200 step/revolution 
step motor.  To set the divisor just select the divisor wanted (1, 2, 4, or 8).
Reducing Output Current
Reducing the output current is accomplished automatically.  The amount of current per phase in 
the reduction mode is approximately 50% of the set motor current.  When the current reduction 
circuit is activated, this lowers the per phase output current.  This is done when the indexer is 
not running.
LEDs
When powered and operated properly the power LED will be green.  When the indexer is running 
the yellow LED will be on.  Refer to the dimension drawing for location of the LEDs.
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							Baud Rates
The 17MDSI Series only accepts a baud rate of 38400.  A baud rate is a term used frequently in 
serial data communicates.  A “baud” is defined as the reciprocal of the shortest pulse duration in 
a data word signal, including start, stop, and parity bits.  This is often taken to mean the same as 
“bits per second”, a term that expresses only the number of “data” bits per second.  Very often,  
The parity bit is included as an information or data bit.
RS485 Protocol
The 17MDSI Series uses a RS485 protocol for communication.  The RS485 protocol mode is as 
follows; On board receivers will remain in active mode indefinitely.  Transmitters must be turned 
off when the units is not sending data its driver will be turned on and each of the units connected 
will have their drivers off.  If they are requested to send data back to the PC, the selected unit 
will turn it’s driver on to send the data and then turn it off after it has completed transmission.  
Note: The above protocol is done internally between the converter and the 17MDSI Series.  The 
RS485 method of communication allows increased noise immunity and increased communication 
distance of up to 4,000 feet without repeaters.  RS485 repeaters allow an additional 4000 feet per 
repeater.  The 17MDSI Series is designed for two wire configuration.  The 2 wire configuration 
makes use of the tristate capabilities of RS485 to allow a single pair of wires to share transmit 
and receive signals for half duplex communications.  This “two wire” configuration (note that an 
additional ground conductor must be used) reduces cabling cost.
RS232 to RS485 for multiple units or cables longer than 50ft
The 17MDSI Series can be connected to your PC serial port via a RS485 converter (model number: 
485SD9TB  sold separately).  This converter will convert the RS232 voltage signals to compatible 
RS485 differential signals.  Only one converter box is needed per serial port.  Contact the factory 
or use the website www.anaheimautomation.com for RS485 converter information and sales.
Terminating Resistor
To eliminate noise on the transmission lines or when using a 4000 ft. cable, a terminate resistor 
is suggested.  If used, the termination resistor need only be added to the last (furthest from the 
RS485 converter box) 17MDSI Series motor/driver/ controller on the network between pins A(-) 
and B(+) on the terminal block.  The value of this resistor should be 120 ohms.
Axis Selection
Each 17MDSI Series motor/driver/controller is addressed using a programmable register allow -
ing the PC to address up to 99 units from one serial port.  The Default axis is “0”.  To change the 
axis, use the SMPG-SMSI software or the “~” command.  To verify or check the axis, use the 
software or the “%” command.  The axis designation is nonvolatile and will remain the same until 
changed by the user.
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							Motion Profiles and Running the Indexer
The programmable simple indexer has the ability to store two different motion profiles.  The pro-
files include a base speed (starting speed), a maximum speeds (running speed), acceleration/
deceleration, and a number of steps (index) number.  The base speed has a range of 1-5,000Hz, 
the maximum speed has a range of 1 Hz-50kHz, the acceleration/decelerati\
on has a range of 
100 to 9,999,999 steps/sec
2 and the index has a range of 0-8,388,607 steps.
There are “two ways” to get the unit to index: Examples are shown \
on the next page. 1.  The first way is to directly control it from the computer with the software provided.  Once 
the motion profiles have been set, the unit is ready to index.  From the software, the user can 
select which profile to run and then click the begin index button.  If a soft limit command is 
sent or a soft limit input is activated, then the unit will immediately \
ramp down to base speed 
and continue running until the index has completed.  To stop all motion before the index has 
completed, a hard limit command needs to be sent or a hard limit input m\
ust be activated.
2.  The second way to make the unit run is to activate the individual index input.  When an 
index input is activated, it selects from memory the speed profile that was selected.  If a soft 
limit input is activated, then the unit will immediately ramp down to base speed and continue 
running until the index has completed.  To stop all motion before the index has completed a 
hard limit input must be activated.
Normal Operation
A.  A Profile input is activated; Ramps up to max speed.
B.  No limit is active; Max speed is reached (keeps running at max speed).
C.  No limit is active; Internal counter signals to ramp down to base speed.
D.  Internal Counter is complete; Base speed is reached.  Pulse stop. Comple\
te Output is set.
Hard Limit Activated During Index
A. A Profile input is activated; Ramps up to max speed.
B.  No limit is active; Max speed is reached (keeps running at max speed).
C.  Hard limit is activated; Pulses stop.  Complete Output is set.
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							Functions
Profile Inputs: These inputs are used to select and begin the specified motion profile.  Only 1 
input should be activated at a time.
Motion Profiles: The indexer will accept up to two different speed or motion profiles.  Each profile 
has it own programmable Accel/Decel, Base speed, Max speed, Index distance value and Com-
plete time.  These values are stored in EEProm for stand-alone use and must be programmed 
before the indexer is ran.
Acceleration/Deceleration:  The acceleration and deceleration are by default the same value.  
This function controls the time that the motor will take to move from base speed to max speed.  
The higher the value, the faster the motor will accelerate.  The same principal applies for the 
deceleration which is controlling the time it takes to go from maximum speed to base speed.  
The higher the value, the faster the pulses will decelerate.  The different accel/decel profiles are 
stored in EEprom for stand-alone use.  (Range:100 to 9,999,999)
Base Speed: The base speed is the speed at which motion starts and stops.  It is entered directly 
as the number of steps per second.  This speed must always be less than the max speed.  The 
different base profiles are stored in EEprom for stand-alone use.  (Range:1 to 5000)
Max Speed: The max speed is the top speed the user wants the pulses to run at.  This speed 
must always be equal or greater than the base speed.  It is entered directly as the number of 
steps/second.  The different max profiles are stored in EEprom for stand-alone use.  (Range:1 
to 50,000)
Index Number:  The index number is the number of steps that the motor will take when the motion 
profile starts.  It is entered directly as the number of steps to take.  The different index profiles 
are stored in EEprom for stand-alone use. (Range: 0 to 8,388,607)
Direction Input: If this input is open then the unit will be running in the clockwise direction.  if 
this input is active then the unit will be running in the counterclockwise direction.  This pin can 
be overridden by the programmable software direction.  It will activate the direction output when 
the pin is changed.  This means, that if you start the profile from the software, the unit will look 
at the software direction.  If you start the indexer from the inputs, then the unit will look at the 
direction input.
Complete Output:  This is an open collector output that is capable of sinking 50mA.  It is current 
sinking when the indexer finishes its index cycle for the pre-programmed amount of time.  The 
time is entered as microseconds.  (Range: 1 to 1000)
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							SMPG-SMSI Software
The SMPG-SMSI software is a handy utility that supports Anaheim Automation’s programmable 
pulse generators and simple indexers.  Connecting your PC to the 17MDSI Series stepper motor/
driver/controller, via RS485, the software can easily perform the following tasks:• Exercise and monitor the 17MDSI Series stepper motor/driver/controller
•  Directly communicate with the 17MDSI Series stepper motor/driver/control\
ler
Installation
Software
• The SMPG-SMSI software is supplied on a CD, containing the setup program and the 
software.
•  SMPG-SMSI software is compatible with all versions of Windows including Windows 
2000, Windows XP, Vista, and Windows 7.
Windows 3.x Installation 1. Insert the CD into the drive
2.  From the Program Manager select  File │ Run
3.  Enter D:\setup and click OK - use the appropriate drive letter (i.e.  D or E)
Windows 95/98/NT/ME/2000/XP Installation
  Option 1 1. Insert the CD into the drive
2.  From the Program Manager select  Start │ Run
3.  Enter D:\setup and click OK - use the appropriate drive letter (i.e.  D or E)
  Option 2 1. Open Windows Explorer
2.  Open CD Drive Folder (D: or E:)
3.  Double Click the setup Icon
Getting Started
1. Double click on the SMPG-SMSI icon to run the software.
2.  Apply power to the 17MDSI unit.
3.  Set the appropriate communication setting by selecting Setup │  Communication Set-
ting from the menu bar.
4.  Establish communications with the 17MDSI by clicking on the Connect Icon, or select 
Setup│Connect.  If the unit is connected properly, the program will notify you when 
communication has been established and the correct programming tab will be enabled 
to let you work with the unit.
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							“The Unit is Connected” / “The Unit is NOT Connected”
On the right of the Toolbar, the user will find the communication status of the pulse generator.  If 
communications is not established, please refer to the troubleshooting s\
ection.
File Menu
Setup Menu
Toolbar
Exit Exit the SMPG10WIN Software
Connect Establish communications with the controller.
Disconnect Discontinue communications and release the comport for use by other devi\
ces.
Communication Settings... COM port Selection (Ports 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10)
ExitExit the SMPG-SMSI Software
Connect Establish communications with the controller.
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