Table of Contents
Advertisement
Overview of power and control connections
Input power connections of the IGBT supply unit are terminals L1, L2 and L3 located
in the lower part of the incoming cubicle. Power cables enter the cabinet via
lead-throughs on the floor of the cubicle as standard. A cabinet-installed supply unit
is typically controlled using the local control devices installed on the cabinet door. No
additional control connections are needed. However, it is possible to:
•
control the unit through the control panel and the fieldbus
•
read the status information through the control panel, fieldbus and relay output
•
halt the unit with an externally wired emergency stop button (if the unit is equipped
with an emergency stop option).
The supply unit I/O control interface is mostly in internal use.
Operation principle and hardware description 31
Advertisement
Table of Contents
