SDMWx170 Stepping Motor Full Digital Programmable Drive

SDMWx170 Stepping Motor Full Digital Programmable Drive
The SDMWx170 module is a compact step motor drive for wall installations. The controller
integrates a microstep drive and a logic able to move to some default positionings
following precision trajectories according to position and speed commands mastered by a PLC.
The communication to a PLC or industrial PC is made through a CANbus or a RS232/485 link. The
drive has #4 5 –:- 24 Vdc inputs, #1 analog ±10 V input and #4 24 Vdc outputs. All digital inputs and
outputs are optoisolated. Dip-switches are available for user settings and for the identification of
the unit in a CANbus net. The system can be provided with additional #4 digital inputs, #4 outputs,
#1 analog input and RS232/485 or CANbus link. The device can drive the stepper motor in open or
closed velocity & position loops, according to internal acceleration and deceleration ramps, while
runnig a real time checking of the critical working parameters as temperature rise, voltages and
currents. The basic system is powered through a DC voltage bus and the version with AC inputs is
provided with AC to DC supply voltage rectifier with EMI filter.
Technical characteristics
• Power supply (SDMWD170) : 24 –:- 140 Vdc;
(SDMWA170) : 24 –:- 100 Vac;
• Driver type : bipolar chopper;
• Chopper frequency : 40kHz;
• Phase current ratings : 1.0 –:- 8.0 Arms;
• Step angle : from full step to 1/256 sinusoidal current waveforms;
• Protections : Overvoltage, Undervoltage, DC bus voltage ripple,
overcurrent, open phase, overtemperature;
• Inputs (optocoupled) : # 4 200kHz, 5 V Line-driver, or 24 Vdc PNP or NPN inputs;
• Analog input : # 1 ±10Vdc not isolated;
• Outputs (optocoupled) : # 4 24Vdc – 500mA outputs short circuit (overcurrent) protected;
• Interface : RS232, RS485 or CANbus link;
• Dimensions (SDMWD170) : 123.3 x 175.0 x 47.7 mm;
(SDMWA170) : 123.3 x 175.0 x 88.3 mm;
• Display : 7 segments leds display of driver’s status;
• Dip switch : for node ID and USER’s functions settings;
• User variables : programming through CANbus;
• Connection : power supply, motor interface and I/O cable clamp connectors;
• Weight (SDMWD170) : 770g;
(SDMWA170) : 900g;
Options:
- expansion # 1 adding: # 4 optocoupled 200kHz, 5 V Line-Driver, or 24 Vdc PNP or NPN
inputs, # 4 optocoupled 24Vdc – 500mA outputs (short circuit protected) and # 1 RS232/485
serial interface.
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