APS Stepper Motor Power Stage0 pages

CONTROL

ENG

www.phytron.eu/APS

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).

Specification

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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

Dimensions (W x H)

60 x 40 mm

Weight

16 g

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

24 to 70 VDC

Reverse polarity protection

No

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

Edition 2013 June