MSE570M-PM542 MCLENNAN | Alldatasheet

Document overview

  • Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
  • PDF pages: 4

Technical content

2 Amp Bi-polar drive module MSE542

Built on the 3U high International standard extended eurocard format, the MSE 542 features a particularly slim profile for optimum space utilisation. With a width of only 34 mm ( 7E ) up to 12 units can be fitted in a single 19 in. standard Euro-rack. Ideal choice for small hybrid motors With adjustable current from 0.5 to 2 amps / phase, combined with chopped constant current drive technology which enables current forcing from supply voltages up to 30Vdc, the unit provides high efficiency and optimum performance characteristics when using size 17 - 23 hybrid stepper motors. Advanced control features The design of MSE542 is based on many years experience in stepper motor drive technology and incorporates the following features to provide flexible control:

  • High efficiency chopped constant current power stage provides increased performance and reduced current consumption
  • Selectable full or half step phase logic control
  • Adjustable current settings from 0.5A to 2 Amps per phase
  • Choice of automatic or externally selectable reduced current for stationary motor conditions to reduce power consumption and motor heating.
  • Over-temperature monitor with selectable automatic drive shutdown.
  • Opto-isolated ‘drive healthy’ status output
  • Opto-isolated control inputs.
  • Control from external clock and direction signals
  • Alternative control using on-board voltage controlled oscillator featuring: externally gated adjustable base and high speed settings adjustable acceleration/deceleration ramping. choice of oscillator gating procedures to suit alternative control philosophies. automatic ramping and controlled motor reversal eliminates motor stalling when high speed direction changes are required. Simplified system integration MSE542 is designed for incorporation in standard 19 in Euro-rack units such as the PM170 series racked power supplies. A matched motherboard, MSB543 is recommended which enables all connections to be made via solder-free terminals. The MSE542 will have particular appeal to systems engineers who wish to utilise the unit in modular form since it incorporates a filtered output stage to minimise electrical emissions and significantly reduces the need for additional suppression components. The slim profile of the PM542 ( only 7E wide ) enables up to 6 units to be fitted in a single 3U high PM173 racked power supply. Alternatively 4 units together with a matched controller to provide a complete self contained motion system can be integrated in a single 3U high system. Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.uk

Flexible control options MSE542 PM542 using external clock and power reduction signals CLOCK DIRECTION drive enable power reduction when stationary drive healthy MSE 542 MSB 543 mode select switch choice of 5V or 24 V signals stepper motor The above drive status mode can be selected for use with either external or internal clock. Alternatively the mode switch may be used to select automatic power-down at standstill. See data for MSE546 for mode switch control settings which are the same apart from the current settings, the values for which being as shown on the following page under the section entitled ‘Power Supply Considerations’ using internal clock ( voltage controlled oscillator ) Direction Run / stop gate High speed gate Slew ( high ) Speed setting MSE 542 MSB 543 stepper motor mode select switchinternal clock trimmers choice of internal clock operation When the Run/stop gate is activated, before the High Speed gate, the motor will run at the Base ( SLOW ) speed set by the unit’s on-board trimmer. Activating the High speed gate will cause the motor to accelerate to the high speed at a rate set by the on-board ramp trimmer. Alternatively, if the High speed gate is permanently activated the unit will automatically ramp the motor to the high speed setting when the run/stop gate is activated. If a change of state on the Direction input line is detected, the on-board oscillator will automatically ramp the motor down to the base speed setting before reversing the motor and then ramp it back up to full speed. This facility simplifies the use of the system under manual control and eliminates the possibility of motor stalling when reversal at high speed is required. Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.uk

Type without front panel MSE 542 Notes Type with front panel PM 542 Supply voltage Vdc 15-30 Max ripple: 3 V peak/peak Current consumption Amps 1 - 3 Depending on motor current selected Output stage 2 phase Bi-polar Output current per phase Amps 0.5 to 2.0 set by on-board DIP switch Step logic Full step / Half step set by on-board DIP switch Control Signals Vdc 3-5 or 10-30 optically isolated External current setting 25 - 90% using external 10K Ohm potentiometer Current reduction @ standstill typically 20 - 25% using on-board current setting Current reduction selection automatic or external set by on-board DIP switch Thermal Warning front panel status lamp and output signal @ 80 O C Thermal shutdown automatic or external set by on-board DIP switch Enable / inhibit External signal sense set by on-board DIP switch Direction External signal sense set by on-board DIP switch External Clock signal one step per pulse Opto-isolated input Max input frequency KHz 20 6 µsec. minimum pulse width Internal clock functions Opto-isolated inputs Low frequency range ( BASE ) KHz 0.002 to 0.7 set by front panel trimmer Slew frequency range ( HIGH ) KHz 0.6 to 18 set by external 10 K Ohm potentiometer Acceleration/ decel. RAMP adjustable set by front panel trimmer Auto-Ramp on reverse signal Optional depending on gating procedure Front panel Status Lamp Green Yellow Red Drive OK. & enabled Drive not enabled Fault: Over temperature Status output signal mA 10 max. Optically isolated: ON when OK Operating ambient temperature O C 0-30 Use forced cooling for operation at higher temperatures Dimensions mm 228 long x 100 x 34 Uses 3U x 7E wide front panel Recommended Motherboard MSB543 Power Supply considerations For single axis operation, any motor can be used with the PM171 Power Supply. For Multi-axis applications use the following table to select the power supply required: The above drive current values may be selected using the on-board mode selection switch. Alternatively an external potentiometer may be used to set intermediate values. Typical drive / motor combinations Motor 17HS-020E 23HS-102X 23HS-104 23HS-304 34HS-106 connection single winding coils in parallel coils in parallel coils in parallel coils in series Drive setting 1 Amp 1.4 Amps 2.0 Amps 2.0 Amps 2.0 Amps Recommended Racked 24 Vdc Power Supplies PM171: 3 Amp rating for single axis installations PM172 6 Amp rating for multi-axis applications PM173 12 Amp rating for multi-axis applications Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.uk

Performance using MSE542 with 24Vdc supply 17HS-020E 0 2000 4000 6000 8000 half steps per sec. ( 0.9 degrees ) Torque ( Ncm ) 23HS-104 0 2000 4000 6000 8000 half steps per sec. ( 0.9 degrees ) Torque ( Ncm ) 23HS-102X 0 1000 2000 3000 4000 5000 6000 half steps per sec. ( 0.9 degrees ) Torque ( Ncm ) 23HS-304 0 1000 2000 3000 4000 5000 6000 half steps per sec. ( 0.9 degrees ) Torque ( Ncm ) Single winding, 1.0 amps per phase Coils in parallel, 2.0 amps per phase Coils in parallel, 1.3 amps per phase Coils in parallel, 2.0 amps per phase Mclennan Servo Supplies Ltd. Tel: +44 (0)8707 700 700 www.mclennan.co.uk