Operating Instructions
Zero-3 / 5-Channel Motor Controller
CNC-STEP e.K. ▪ Siemensstrasse 13-15 ▪ 47608 Geldern ▪ Germany
Page 11
Support: +49 (0)2831/91021-50
12.10.2012
3 .5
Pr e ca u tio ns for s p eci al typ es of d a nge r
3 .5 . 1
Electrical power
Work on the electrical systems or operating units may only be carried out by a
qualified electrician or by an instructed person under the supervision of a
qualified electrician in compliance with respective regulations for electrical
equipment.
Persons with a pacemaker are not allowed to enter areas with a control cabinet!
System parts on which maintenance, service and repair work is being carried
out must be disconnected from the power supply if this is required. First check
that disconnected parts are free of voltage then ground and short-circuit them
and isolate live neighboring parts.
Use only original fuses with the electrical current for which they were
designed! Turn the system off immediately if encountering any faults in the
power supply!
The system’s electrical equipment must be inspected/checked regularly. Any
faults, such as loose connections, damaged or cracked cable, must be repaired
immediately.
If it becomes necessary to carry out work on live components, a second person
must be called in who, in an emergency, can actuate the E-Stop or the main
switch equipped with a voltage tripping mechanism. Cordon off the work area
with a red and white safety chain and a warning sign. Use only non-conductive
tools!
NOTE:
Follow the special safety instructions in the individual chapters of this user
manual.
