Operating Instructions
Zero-3 / 5-Channel Motor Controller
CNC-STEP e.K. ▪ Siemensstrasse 13-15 ▪ 47608 Geldern ▪ Germany
Page 22
Support: +49 (0)2831/91021-50
12.10.2012
5 .1
W or k i n t h e i n ter io r o f t h e ho us in g
There is normally no maintenance required for the inside of the housing. Repairs may only be
carried out by the manufacturer or authorized workshops. Exceptions are changing fuses and
changing the factory settings with the help of the DIP switch. In the case of all work which requires
opening the housing, be sure to pay attention to the following points:
Switch the controller off at the main switch and unplug the power plug.
Wait approximately 2 minutes to allow the energy stored in the
capacitors can discharge.
If these instructions are not followed there is the risk of serious or
fatal injuries due to electric shock! The controller can also be
damaged if objects accidentally fall into it when opening the housing.
If the controller is opened directly after being in use the temperature of
individual components in the controller may still be over 50°C. There is
danger of burning if these are touched. We therefore recommend a
cooling off period of 30 minutes
Carefully save all screws and disassembled small parts. When putting it
back together, be sure to reinstall all original parts in the places intended
for them. Screws that are too long can cause short-circuits or damage
components on the inside.
Metal housing parts must be connected to the PE conductor. During
reassembly, be absolutely sure to reconnect all ground lines and to firmly
tighten the screws.
