Siemens CU240B-2 - Page 61

Installing
4.4 Installing Power Modules
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
61
Procedure
Proceed as follows to correctly install the Power Module:
1.
Prepare the cutout and the mounting holes for the Power
Module and the mounting frame corresponding to the
dimensioned drawings of the mounting frame.
Also note that the PT Power Modules must be vertically
mounted with the line and motor connections facing
downwards.
2.
Position the mounting frame at the rear of the control cabinet
and attach it to the control cabinet by tightening the
corresponding screws by hand.
3.
Attach the seal to the inner side of the control cabinet.
4.
Fix the inverter, and first tighten all of the fixing screws by
hand.
5.
Tighten the screws with a torque of 3.5 Nm.
Mounting frame
You have correctly installed the Power Module.
Protection against the spread of fire
The built-in units may be operated only in closed housings or in higher-level control cabinets
with closed protective covers, and when all of the protective devices are used. The
installation of the built-in units in a metal control cabinet or protection with another equivalent
measure must prevent the spread of fire and emissions outside the control cabinet.
Wall mounting units may be operated outside the control cabinet.
Protection against condensation or electrically conductive contamination
Protect the inverter, e.g. by installing it in a control cabinet with degree of protection IP54
according to IEC 60529 or NEMA 12. Further measures may be necessary for particularly
critical operating conditions.
If condensation or conductive pollution can be excluded at the installation site, a lower
degree of control cabinet protection may be permitted.