APS Stepper Motor Power Stage
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APS Technology High performance stepper motor power stage Now as OEM module with sin/cos via SPI The phytron APS module is a high performance power stage for the operation of stepper motors up to 5 APEAK at 24 - 70 VDC with a shaft power up to 250 Watts. While almost any commercially available stepper motor power stage provides the setting of the so-called microstep operation, the generated current settings are too inaccurate to achieve the individual sub-steps and to approach the actual position. The APS module positions with an actual step resolution of 1/512 (102,400 positions per revolution with an encoder with a 200 step motor). Based on our parameterisable chopper technology and by the use of premium components with low resistance, the APS triggers with optimal timing. So the APS technology creates a current h shape close to a perfect sine wave with a minimum of heat loss in the controller. Only this highly accurate output signal enables the loss- and low resonance operation of the motor, the fast execution of each sub-step and the approach to each position. The compact APS is the core of the 1-STEPDRIVE (for SIMATIC ET 200®S) SPS module and as a power stage module of our phyMOTIONTM available. The APS can be parameterised (run current, stop current, boost current, current delay time etc.) and diagnosed online by a ServiceBus code and is also open for instructions from the CPU in runtime within a parameterisation cycle. Benefit from our APS power stage technology: EVA-APS board (p.3) or APS-Arduino Shield (p.4). e for vailabl Now a ino ! Ardu In Focus • OEM power stage module with control pulses/direction or sin/cos presetting via SPI • For 2 phase stepper motors • Up to 5 APEAK at 24 -70 VDC • Up to 1/512 step resolution • Up to 500,000 steps/sec • Online parameterising and diagnostic of the power stage via Serial Periphal Interface (SPI) • Control via Control pulses/direction or via digital sin/cos (via SPI) • Free available parameterisation and diagnosis tool ServiceBus-Comm® • 2 development environments: - for industry: EVA-APS board - for research: APS-Arduino Shield Mechanical Design Plug-in power stage module also as OEM module Features Stepper motors Suitable for bipolar control of 2 phase stepper motors with 4-, (6-) or 8 lead wiring Phase current Up to 5 APEAK (short circuit-proof, overload protected) Power supply Reverse polarity protection Violet = Phase current 1 Green = Phase current 2 1/128-Ministep, 3.5 ARMS (approx. 5.0 APEAK), UB = 60 V Specification - continuation box next side

Specification Features (continued) Motor current adjustment Step resolutions Maximum step frequency Physical resolution Approx. 102,400 positions per revolution (0.0035°/step) with a 200 step motor. An encoder with a counter should be considered for very fine positioning. Chopper frequency 18, 20, 22 or 25 kHz selectable Patented phytron Chopper technology for a minimal heat loss in the motor and smooth rotation. Mechanical output power Cable length Diagnostic LEDs Opportunity to connect on 2 signal lines with 3.3 V logic level: LED 1 (power stage ready), LED 2 (error) Hardware error...

Evaluation board for APS Power Stage: EVA-APS Pushbutton START Supply Connection USB Port SPI Interface (ST1) Pulse/Direction Interface • Online parameterising and diagnostics via USB • Control via Control Pulses/Direction • Two operating modes • Input signals defined by jumpers • Customised SPI interface • ServiceBus-Comm software included EVA-APS is an evaluation board for application development of the APS power stage and can be ordered as a bundle with the APS power stage. Pushbutton RESET Rotary switch FUNCTION Motor Connection APS power stage module Jumpers Resistor for Input Level...

APS-Arduino Shield Description APS-Arduino shield is a development environment for the use of the APS power stage in research, prototyping, model making and art installations. • APS power stage parameterising and diagnostics via SPI interface • Control pulses/direction signal comes from the digital pins of the Arduino • Download of the demo program and description from the phytron website • Learn more about Arduino: www.arduino.cc Operation/Connection Motor voltage supply 24 VDC to 70 VDC Input range of supply of the power stage Analogue outputs (motor) A, B, C, D for a 2 phase stepper...