Operating Instructions
Zero-3 / 5-Channel Motor Controller
CNC-STEP e.K. ▪ Siemensstrasse 13-15 ▪ 47608 Geldern ▪ Germany
Page 6
Support: +49 (0)2831/91021-50
12.10.2012
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Overview of features
Up to 4 axes or 5 stepper motors can be controlled. For one of the axes two motors can be used in
parallel (X1, X2).
The phase current for the motors of the X, Y and Z axes can be jointly set at 2.8 or 3.5A, as desired.
The phase current of the C axis can be set separately in four steps between 1.4 and 3.5A. When it is
not operating the motor current is automatically reduced to 66%.
For each axis the step resolution can be separately set at 1/5 or 1/10 of a full step. This corresponds
to 1,000 or 2,000 microsteps per revolution in the case of standard stepper motors (1.8° per full
step).
The 15-pin D-sub connection socket of the C axis has a 24V PWM output and a 12V power supply
for controlling the tangential cutting modules. (e.g. TCM-3 or ETO-2) with or without an oscillating
cutter. If an oscillating cutter is not used, the 24V output can alternatively be used for a brake.
The four reference or limit switches and an E-STOP button can be connected via a 9-pin D-sub
connector. A 0..10V analog signal for controlling the motor speed with an (external) frequency
inverter is available via a 25-pin D-sub port on the rear panel.
The power supply for external consumers can be switched on and off by the software at two power
outlets on the rear panel by means of two relays. They can each carry a load of 8A and have
separate fuses.
The current operating state of the controller can be read at any time using 12 LEDs on the front
panel.
