Operating Instructions
Zero-4 / 5-Channel Stepper Controller
CNC-STEP GmbH & Co. KG ▪ Siemensstrasse 13-15 ▪ 47608 Geldern ▪ Germany
Page 21
Support: +49 (0)2831/91021-50
6/16/2021
4 .4 . 4 .2
PC connection (LAN)
The control PC is connected via the LAN port of the Zero-4 controller.
4 .4 . 4 .3
Connection frequency converter (FU) for RF spindles
A frequency converter can be connected to the 9-pin D-Sub socket or optional accessories that
require an analog 0–10-volt signal (e.g. portal control for AMB milling motors).
All outputs on the FU connector are high-active, i.e., output 24V when switched on. All inputs are
also high-active, i.e., designed for PNP sensors (0V= off, 24V = on).
Pin No. signal
Software PIN
1
Entrance 2 (Reserve)
LPT2 PIN4
2
Input 1 (error /alarm inverter)
LPT2 PIN3 (-)
3
Output 1 (spindle start backwards M4)
LPT1 PIN 14
4
Output 2 (spindle start forward M3)
LPT1 PIN1
5
Speed setpoint, analog 0-10 Volt
LPT1 PIN17 (PWM)
6
Digital Mass
7
Output 3 (Reserve)
LPT2 PIN1
8
Digital Mass
9
Analog mass
