T1689 Technical Manual Rev 07 Drive (CDM) Design
MV3000 Air Cooled DELTA Component Selection - Mechanical
Page 101
3.9.2 DELTA Mounting Frames
DELTA power modules are only designed to fit into the DELTA guide plate and support frames. The assembly of
these ‘frames’ is shown in Section 5: CDM Assembly.
These frames are designed to fit Rittal TS8 enclosures. See Section 3.9.1.4: Enclosure Type for recommended
types.
• Ensure that the enclosure attachment point is sufficiently strong for the weight of components
attached to the frame, for lifting and for the final installations environment (e.g. vibration).
• See Section 2: Specification for available frame sizes.
• These are limited to a maximum of four DELTAs per frame due to the combined weight of
these modules.
• It is recommended that a standard mounting frame is used regardless of the enclosure selection.
If an alternative enclosure style is utilised, interface brackets will be required to allow the
mounting frame to be used.
• If a standard mounting frame is not to be used, the CDM builder will need to design and
manufacture their own, following the guidance below:
• A maximum of four DELTA power modules per enclosure (due to the combined module
weight over a wide span);
• It must be possible to secure the DELTA power modules with their designed fixing points.
DELTA power module dimensions are shown in Appendix A: Dimensioned Mechanical
Drawings;
• Access to all fixing points and coolant connections must not be affected;
• Air flow through the d.c. link capacitors of DELTA transistor modules must not be affected;
• Clearance to the enclosure frame is required when fitting and removing modules;
• The live right side of the module requires clearance to the enclosure’s earthed metal
during operation.
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