KTA-193 Programmable Stepper
Motor Controller
Based on the
Serial Stepper Motor Controller, the introduction of a more powerful
microcontroller has allowed us to produce a standalone 4 axis stepper
motor controller which can be programmed via a PC using supplied
software. Alternatively the card can be controlled via a PLC to free
the PLC from complex stepper motor control routines. Up to 4 cards can
be controlled from a PLC using the Modbus protocol.
Up to 120
instructions can be programmed into the controller for 1 motor, 80
instructions for 2, 60 instructions for 3 and 50 instructions for 4
motors. Instructions are saved in EEPROM and are retained through power
loss. Just program once and then let it go.
Ideal
for repetitive process tasks involving stepper motors, the unit
provides 8 digital outputs which can be used as the direction and step
signals. The outputs can also be used as
general purpose digital outputs when not being used for
motor control and the 4 digital inputs can be used for limit switches
or program control.
Instructions
include
- Absolute Move
- Relative Move
- Move and
Wait for Limit Switch
- Wait x
milliseconds
- Digital
Output On/Off
- Set Max
Stepping Rate
- Set Start
Stepping Rate
- Set Step
Increment
- Set Motor
Position
- Wait for
Input (Rising, High or Falling)
- Jump to
Instruction x
- If Jump. If
the input is present do the following instruction otherwise jump to
line no xx
- Jump to Start
The program
can be instructed to run once, a number of times or continuously.
Finished
Dimensions (mm): 78Wx88Lx25H
Download
datasheet file
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KTA-190 PC Serial Port Stepper
Motor Interface Card
NOV
06 - NOW MUCH FASTER - Up to 6.3kHz Stepping Rates
SEP 07 - SIMULTANEOUS MOTOR CONTROL ADDED
SEP08 - 2
RELAYS ADDED
Connects to the PC serial port and provides an easy to use interface
for connecting and controlling stepper motors by your PC. You can
connect up to four Leadshine Microstepping drives, KTA-191
Bipolar Chopper Drive, or KTA-179 Unipolar Stepper Motor Drivers to the
card using their step and direction signals. You can multidrop
up to 4 interface cards off the 1 RS232 serial line so you can control
up to a total of 16 stepper motors.
You
simply write ascii commands through the PC's serial port to the card to
control each of the stepper motors.
A free PC program (source code in VB is included) is provided so that
you can execute a number of commands and repeat the process
Examples
of the commands are
@01 AMOV 1000
2000 n 4000
do an absolute move of stepper 1,2 and 4 to
positions 1000, 2000
and 4000
@01 AMOV 2000 do an absolute
move of stepper 1 to position 2000
@02 RMOV -400 do a relative
move of stepper 2 400 steps backwards
@03 POSN 10000 indicate
stepper 3 is at position 1000
@04 STOP stop stepper 4
@01 STAT card sends
the status of motors 1 to 4 whether they are moving or not and status
of limit switches.
Please note these are not G-Code
commands and it will not accept G-Code
Positions
can be between -99999999 and 99999999 steps. Stepping
rates are now up to 6300Hz, Amazing for
such a low cost unit. The user can also set
the acceleration and deceleration rates when starting and ending a
sequence of steps. Limit switch inputs are available for each of the
motors to prevent motors moving out of range.
Jan
06 - Two
new commands can turn on and off a direction signal on the board for a
specified time. For example the user could control two stepper
motors for a telescope and using the commands switch on and
off a relay for a specified time to operate a camera shutter.
Nov/Dec 06 -
Faster Stepping rates, Alternate Acceleration Curve, Saving of
parameters to EEPROM, Serial Response
on completion of Move and XOR Checksum Options Added
Sep
07 - Simultaneous
Motor Control Added - Control all four motors simultaneously, no more
frustration of having one motor start moving before the other.
Sep 08 - Added 2 Relays to allow you to switch on and
off lights, DC motors, valves etc
Finished
Dimensions (mm): 78Wx92Lx25H
Download Software
Download
Manual
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Our free PC program vbSerialStepper (source
code in VB is included) is now provided on CD so that you can execute a
number of commands and repeat the process
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KTA-192 Parallel
Port Interface Card
Kit
Our Parallel
Port Relay card allows you to control stepper motor operations from
your parallel port. It uses a 74HC245 buffer IC to provide protection
for your PC’s parallel port and provide enough current drive for
turning on and off opto-isolator inputs. Can be connected to our KTA-191, KTA-196 and KTA-179
stepper motor driver cards and our
microstepping drives. Fitted with screw terminals it
allows for 4 Clock signals, 4 Direction Signals and 4 Limit or
Emergency Switches Terminals. Perfect for a 3 axis or 4 axis CNC
machine. Pin outs are suitable for most desk top CNC packages.
You can also use it in other applications for I/O
control from your parallel port
Finished Dimensions (mm): 58Wx88Lx25H
Download
Circuit Diagram
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KTA-205 Parallel Port Interface
with Relays Card
Kit
Our Parallel
Port Relay card allows you to control stepper motor operations from
your parallel port. It uses a 74HC245 buffer IC to provide protection
for your PC’s parallel port and provide enough current drive for
turning on and off opto-isolator inputs. Can be connected to our KTA-191, KTA-196
and KTA-179 stepper motor
driver cards. The card
provides 8 motor control output signals (
4 Step signals, 4 Direction signals) to control up to 4
Stepper Motor Drivers, 4 digital inputs designed for use as limit
switch inputs, 2 Relay Outputs to control spindles, coolant or vacuums,
and 3 general IO which are connected directly to the port. The card is available with 12V or 24V
relays and requires power at the relay voltage.
Fitted with screw terminals. Perfect for a
3 axis or 4 axis CNC machine.
You can also use it in other applications for I/O
control from your parallel port
Finished Dimensions (mm): 58Wx88Lx25H
Download
Manual
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