ABB ACS880-1607LC, Hardware Manual

Page: 71 / 106

Power connections
￭ Retightening the power connections
WARNING!
Read the safety instructions given in Safety instructions for ACS880
liquid-cooled multidrive cabinets and modules (3AXD50000048633
[English]). If you ignore them, injury or death, or damage to the equipment
can occur.
1. Repeat the steps described in section Electrical safety precautions (page 39) .
2. Check the tightness of the cable connections. Use the tightening torques given in the
technical data.
Fuses
￭ Checking and replacing the fuses
The DC/DC converter unit has two sets of fuses: output fuses on the energy storage side
and fuses on the DC bus side.
For the location of the fuses, see the figures:
• The converter fuses [F11.x] on the drive DC bus side (marked with a in the figure).
• The output fuses [F13.x] on the energy storage side are marked with b in the figure.
a
a
b
b
Converter unit with a DC switch/disconnector Converter unit without a DC switch/disconnector
WARNING!
Obey the safety instructions given in Safety instructions for ACS880
liquid-cooled multidrive cabinets and modules (3AXD50000048633
[English]). If you ignore the safety instructions, injury or death, or damage
to the equipment can occur.
If you are not a qualified electrician, do not do installation or maintenance
work.
Replace a blown fuse with a new one of the same type as follows. For tables of recommended
fuses, see the technical data.
Maintenance 71