Operating Instructions
Zero-3 / 5-Channel Motor Controller
CNC-STEP e.K. ▪ Siemensstrasse 13-15 ▪ 47608 Geldern ▪ Germany
Page 8
Support: +49 (0)2831/91021-50
12.10.2012
3 .2
Pe r son n el s el ec tio n a n d q ual if icat io n , g en e ral du ti es
Specify who is in charge of the system and authorize this person to refuse instructions from
third parties which are not in compliance with safety regulations.
Assign only trained or instructed personnel to the machine. Specify clearly the responsibility
of personnel for operation, setup, maintenance and repairs!
Work on/with the system may only be carried out by reliable personnel. (Observe the
statutory minimum age.)
Ensure that the system is only operated by personnel who are authorized to do so.
Allow personnel undergoing training, instruction or familiarization with the system or those
involved in general training to use the system only while under the uninterrupted
supervision of someone experienced with the machine.
All work on electrical system may only be carried out by personnel trained and qualified for
this.
3 .3
S a fe ty w ar ni ngs
The Zero3 step motor controller is sometimes exposed to high thermal loads. All conversions and
alterations to the controller are carried out at the user’s risk and invalidate any warranty or warranty
claims.
The controller is equipped with forced air cooling. Under normal operating conditions the
components which become hot reach temperatures of more than 70°C. Make sure there is an
adequate air supply. In particular, the ventilation openings must not be closed, covered or clogged.
In addition, all valid VDE regulations and CE standards must be observed. Especially when the
power supply is being connected extreme caution is called for. Use separate and shielded cables
when connecting motors and limit switches/reference switches. For motor cables we suggest wire
gauge of at least 0.5 mm² (AWG 20).
