ABB 70PR05B-ES controller unit
What this chapter containsThis chapter describes the mechanical installation of the drive cabinet generally.
Follow the specific instructions given by the panel builder. For the mechanical
assembly and dimensional drawings of the drive module, refer to ACS800-04/04M/
U4 Cabinet Installation [3AFE68360323 (English)] and ACS800-04/04M/U4 Drive
Modules (45 to 560 kW, 60 to 600 hp) Rittal TS 8 Cabinet Installation
[3AFE68372330 (English)].
Unpacking the unit
The drive delivery contains:
• drive module including factory installed options such as optional modules
(inserted onto the RMIO board in the RDCU control unit)
• residual voltage warning stickers
• hardware manual
• appropriate firmware manuals and guides
• appropriate optional module manuals
• delivery documents.
Note: Do not discard any important components that are in separate cardboard
boxes, for example, under the drive module.

Requirements for the installation site
Check the installation site according to the requirements below. See Technical data:
Ambient conditions for the allowed operation conditions of the drive.
Cooling air flow
Provide the drive with the amount of clean cooling air given in Technical data: IEC
data or NEMA data.
Cable channel in the floor below the cabinet
When a cable channel is constructed below the cabinet, ensure that cabinet weight
lies on the sections which the floor carries.
Fastening the cabinet to the floor and wall
Fasten the cabinet to the floor and wall/roof according to the panel builder’s
instructions, e.g. with outside fastening brackets or by fastening holes inside the
cabinet.
Electric welding
It is not recommended to fasten the cabinet by welding.
If the preferred fastening methods (clamping or bolting through the holes inside the
cabinet) cannot be used, proceed as follows:
• Connect the return conductor of the welding equipment to the cabinet frame at
the bottom within 0.5 metres of the welding point.
WARNING! If the welding return wire is connected improperly, the welding circuit
may damage electronic circuits in the cabinet. Ensure that the welding fumes are not
inhaled.
Example cabinet frame viewed from above
With heavy cabinets, support the
structural C-sections from below.
Example cabinet: side view
Cables
Prevent the cooling air flow from the cable channel to the cabinet
by bottom plates. To ensure the degree of protection for the
cabinet use the original bottom plates delivered with the unit.
With user-defined cable entries take care of the degree of
protection, fire protection and EMC compliance.