logo Astel electronics and industrial automation
   italiano IT     inglese EN    
Google
 Company  |  Wafer Handling  |  Electronic design  |  Healthcare  |  Security  | |  Products  |
[Products] > [Stepper drivers] > [STP900D]

Stepper drivers
Stepper motors
Oscillators
Indexer
Microstepper modules
Full system
DC drivers
Linear axes
Controllers

Sport & Racing

Home & Building

PicoSTP
STP170
STP250
STP300D
STP300M
STP600D
STP900D
STP650
STP1000
 STP900D

The STP900D-70 and STP900D-120, stepper drivers, is specially indicated for driving stepper motors in high performances applications.

Operating voltage from 24 to 150Vdc and with a nominal phase current up to 9A in 8 equally spaced levels by dipswitch selection.

Analogic input for automatic step generation.

The STP900D stepper driver board is modular and compact and uses the last generation soluctions to reach the maximum performances and reliability.

The board can be equipped and connected with a wide range of accessories and controls to build a fully customized stepper systems.

GENERAL SPECIFICATIONS

  • High frequency PWM bipolar stepper driver
  • Full, half and quarter step resolution
  • Fully protected against shortcircuits, overtemperatures and overvoltages
  • Compact size:
    - only 170 x 100 x 50 mm (STP900D-70)
    - only 170 x 100 x 65 mm (STP900D-120)
  • Nominal phase current in 8 steps
  • Opto insulated inputs to meet harsh industrial conditions
  • FAULT output
  • Inputs:
    - STEP
    - DIR
    - ENABLE
  • Operating conditions indicated by LED:
    - FAULT
    - POWER ON
  • Oscillator: built-in with potentiometer or analogic input
  • Automatic current reduction (selectable)


 TECHNICAL CHARACTERISTICS
Supply voltage
-70: Nominal value 70V (min 24V) (max 85V)
-120: Nominal value 120V (min 40V) (max 150V)

Phase current
From 2A to 9A in 8 equally spaced steps by changing the dipswitch.

Current reduction
The nominal phase current is automatically reduced by 50% after 200ms from the last step received.

Resolution
Full, half and quarter step resolution available.

Motor types
For stepper motor with 4,6 or 8 windings in serial or parallel mode.
Configurable for high and low inductance motors.

DIRECTION input
Optically insulated direction input. This input selects the CCW or CW rotation mode.

Clock input
Minimum width: 7us
Maximu step rate: 50KHz.

ENABLE input
(All windings off)
Optically insulated input.
This input enables the driver output stage and, when disabled, the motor is de-energized.

FAULT output
Open collector output, active low, used to signla the working condition to a PC or PLC
(max 50mA, 30Vcc).

Plugin modules
(optional)
Oscillator
Indexer with serial interface RS232 and RS485

NOTE: This driver can be shipped with custom cycles built-in without additional costs, please contact factory for informations.
OTHER RELATED PRODUCTS

    (INDW) Indexer
    (ISC) Intelligent stepper controller with I/O

DOWNLOAD


Example

900D-70

900D-120

Brochure

 Support  |  Enquiry form  |

Home |  Contact us |  Notices | Links | Site map | 

Astel electronics and industrial automation ®   

Copyright © 2006 Astel - Tutti i diritti riservati - P.IVA 07083610019