General Notes; Printed Circuit Boards; Optical Components; Checking The Insulation Of The Assembly - ABB ACS880-104 Hardware Manual
Industrial drives, inverter modules
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- Hardware manual (404 pages) ,
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- Firmware manual (604 pages)
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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.
General notes
￭
Printed circuit boards
WARNING!
Use a grounding wrist band when you handle printed circuit boards. Do not touch
the boards unnecessarily. The boards contain components sensitive to electrostatic
discharge.
￭
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").
Checking the insulation of the assembly
￭
Checking the insulation of the drive system
WARNING!
Do not make any voltage withstand or insulation resistance tests on any part of
the drive as testing can damage the drive. Every drive has been tested for insulation
between the main circuit and the chassis at the factory. Also, there are
voltage-limiting circuits inside the drive which cut down the testing voltage
automatically.
￭
Checking the insulation of the motor and motor cable
WARNING!
Obey the safety instructions of the drive. 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.
1. Stop the drive and do the steps in section
you start the work.
2. Check that the motor cable is disconnected from the drive output terminals.
3. Measure the insulation resistance between the phase conductors and then between
each phase conductor and the Protective Earth conductor. Use a measuring voltage of
1000 V DC. The insulation resistance of an ABB motor must exceed 100 Mohm
Electrical installation 145
Electrical safety precautions (page 144)
11
before
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