ABB ACS880-37LC, Hardware Manual

Page: 18 / 202

WARNING!
The busbars inside the cabinet are partially coated. Measurements made
through the coating are potentially unreliable, so only measure at uncoated
portions. Note that the coating does not constitute a safe or touch-proof
insulation.
7. Install temporary grounding as required by the local regulations.
8. Ask the person in control of the electrical installation work for a permit to work.
￭ Additional instructions and notes
WARNING!
Obey these instructions. If you ignore them, injury or death, or damage to the
equipment can occur.
If you are not a qualified electrician, do not do installation or maintenance work.
• Make sure that the electrical power network, motor/generator, and environmental
conditions agree with the drive data. Verify that the network voltage matches with the
input voltage on the drive type designation label.
• Do not do insulation or voltage withstand tests on the drive.
• ABB recommends not to secure the cabinet by arc welding. If you have to, obey the
welding instructions in the drive manuals.
Note:
• The motor cable terminals of the drive are at a dangerous voltage when the input power
is on, regardless of whether the motor is running or not.
• When the input power is on, the drive DC bus is at a dangerous voltage.
• If brake chopper and resistor are in use, they are at a dangerous voltage. (Options
+D150 and +D151)
• External wiring can supply dangerous voltages to the relay outputs of the control units
of the drive.
• The Safe torque off function does not remove the voltage from the main and auxiliary
circuits. The function is not effective against deliberate sabotage or misuse.
Optical components
WARNING!
Obey these instructions. If you ignore them, damage to the equipment can occur.
• Handle the fiber optic cables with care.
• When you unplug the fiber optic cables, always hold the connector, not the cable itself.
• Do not touch the ends of the fibers with bare hands as the ends are extremely sensitive
to dirt.
• Do not bend the fiber optic cables too tightly. The minimum allowed bend radius is
35 mm (1.4”).
18 Safety instructions
3