RS-232 Port
5
4
Features
The VXM is a high performance, advanced design stepping motor controller.
High reliability, and consistent performance are achieved by these design
features:
· Single chip microcontroller (MCU) digitally controls the motor phase switching
and all other interface functions (noise sensitive step and direction translation
circuitry are eliminated)
· Pulse width modulated timing is preset by the MCU, eliminating error prone
analog feedback circuits
· Regulated power supply with a 100 to 240VAC input range assures consistent
motor output torque
· 4X oversize motor drives for long life and overload tolerance
· A single VXM can accept and execute commands for operating 4 motors
· Complete Controller/Indexer/Driver/AC Power Supply with RS-232 interface
· Modulated current control drive has less low speed vibration than typical 400
step/rev controllers
· Nonvolatile memory for user program storage
· Included external desktop type power supply is UL, CE, CSA, and TUV safety
agency compliant
· One and two motor versions. Three and four motor capability with two Controls
linked by the VXM bus
· Backward compatible with Velmex NF90 and VP9000 Step Motor controllers
· User programmable inputs and outputs
·10 bit analog input for external sensor, setting speed, or for analog joystick
control
· Runs 6 or 8 lead permanent magnet step motors rated from 0.4 to 4.7 amps
· Jog, Run, and Stop input buttons on front panel
· Use interactively with a PC or run standalone
· Optically isolated limit switch inputs
· User resettable circuit breaker protected
· Software settable motor power and motor model selection
· Low voltage 24VDC operation
· Energy saving design, automatically de-energizes motors at a standstill,
consuming only 1.4 watts
· FIFO buffer to capture motor positions on external trigger
· Special commands for matrix/array patterns and pick-and-place applications
· Coordinated motion with two VXMs
· Complex motion profiles with “continuous index mode”
RS-232
1
2
3
4
5
9 8 7 6
The RS-232 port will connect directly to a COM
port of a PC with a straight through 9 pin serial
cable (10 foot cable included with the VXM.)
Pin Assignments:
1 N/C
2 Tx
3 Rx
5 Gnd
4
6
7
8
9 N/C
N/C = No Connection
Over Current
Protection
External DC Power Supply
Input Connection
(To Lambda DT60PW240P)
Serial RS-232 Port
Cable to Motor 1
Cable to Motor 2
Cable to Limit
Switches for Motor 1
Cable to Limit
Switches for Motor 2
Auxiliary Inputs
and Outputs
Rear
Host Computer
Controlled Indicating
LED
Power Switch
(Press right side
is On)
Power
Indicating LED
Start Internal
Program
Stop/Interrupt
Program
Bus connection to
second VXM for
3 and 4 motor operation
Moves Motor 1
CCW
Moves Motor 2
CCW
Moves Motor 1
CW
Moves Motor 2
CW
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Stepping Motor ControllerStepping Motor ControllerVXMVXM
www.velmex.comwww.velmex.com
VXM
Bus
VXM
Bus
StopStop
RunRun
On-LineOn-Line
LocalLocal
-- --
++ ++
Jog 1Jog 1
Jog 2Jog 2
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Front
9DSUB Socket
DC24V 2.5A
Circuit Breaker
Motor 1
Motor 2
Limits 1
Limits 2
IOIOI
RS-232
I/O
Bloomfield,
NY, USA
Model VXM-2
Serial # 020835
2.5
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