ABB DSQC627 3HAC020466-001 Robot power supply unit
Careful preparation of the installation area is the key to a successfulcommissioning.
5.3.1 Dimensions, clearances
5.3.2 Cabinet roof
The cabinet roof is not designed as a mounting
base for foreign devices, cable ducts etc. Therefore, it is not permitted to install any foreign
device on the roof.
5.3.3 Fire protection
Suitable fire protection measures should be
applied to prevent fire spreading into the drive.
5.3.4 Cable duct material
Cable ducts should be of non-flammable material
with non-abrasive surface.
All cable entries and exits should be protected to
prevent dust, humidity and animals entering into
the drive.
5.3.5 Preparing the floor
Condition of the floor
• Must support the weight of the cabinet
• Overall incline across 5 m must not exceed 5
mm
• Even
• Non-flammable, smooth and non- abrasive
• Protected against humidity diffusion
NOTICE
Foreign matter and particularly metallic dust can
cause failure and damage when the drive is energized.
Ensure that foreign matter cannot enter the cabi -
net:
‧ Close the doors and cover openings completely
when work is discontinued.
‧ Retrieve any foreign matter which accidentally
dropped into the cabinet.
For information on cabinet dimensions,
clearances to be observed and mounting
hole sizes, see layout drawing in mechanical drawings.

The fans are always shipped separately from the drive.
Installation
1. Lift the fan unit onto the cabinet roof by means
of a forklift or a crane (if using a crane, employ
the lifting eyes in the fan roof).
Note: The mounting position can be identified by
the cutouts in the drive roof.
2. Use the supplied screws to fasten the fan unit
to the cabinet roof.
For information on the number of fan
units to be installed, see the applicable
mechanical drawings.
~73 kg
~94 kg
(fan units installed on
(fan units installed on
1MVA DFE drives)
2- 4MVA DFE drives)
For information on the electrical installa tion, see 6.11 Control and power supply
cables for fan units.
Hazardous voltage!
Improper work could lead to life-threatening injury
or death.
The electrical installation must be carried out by
qualified personnel according to the site and
equipment requirements, and the relevant electri -
cal codes.
When the electrical installation is completed, the
main and auxiliary power supply to the drive must
not be switched on without the consent of the ABB
commissioning personnel.
Take appropriate measures to prevent main and
auxiliary power supply being switched on during
installation