Operating Instructions
Zero-3 / 5-Channel Motor Controller
CNC-STEP e.K. ▪ Siemensstrasse 13-15 ▪ 47608 Geldern ▪ Germany
Page 16
Support: +49 (0)2831/91021-50
12.10.2012
4 .3 . 3
Rotating axis/tangential cutter (C)
The fifth axis can be used optionally either for a rotating axis (dividing head) or a tangential cutter.
So that this axis can be upgraded later without having to change existing wiring, all the necessary
additional signals are available on this connector.
Pin no. Signal
1+9
Stepper motor winding A+
2+10
Stepper motor winding A-
3+11
Stepper motor winding B+
4+12
Stepper motor winding B-
7+8
Oscillating motor +12..24V (max. 3A)
14+15 Oscillating motor GND
13
Limit switch C
5
Signal ground, shielding
6
Fan, 12V max. 150mA
Stepper motor, oscillating motor and 12V output are all short-circuit proof. Nonetheless, because
the 12V supply is also used internally, malfunctions of the controller are possible in the event of a
short circuit. Pins 5 and 14-15 (GND) are connected internally, but should be separately wired in
order to prevent disruptions to the limit switch signals by the motor. The limit switch can be a NC
or a NO contact depending on ground. The polarity can be selected in the software (e.g. WinPCNC
or Mach3).
