• Do not drain coolant into the sewer system.
• If you need to store the drive in temperature below -15 °C (5 °F), drain the cooling circuit,
or make sure that it is filled with the coolant specified by ABB.
• Drives with cooling unit: Do not open the cooling unit pump inlet or outlet valves before
filling up the coolant circuit. The pumps are filled with a mixture at the factory to prevent
corrosion and the valves are closed at the factory.
• Drives with cooling unit: Do not run the cooling unit pump dry.
Electrical safety in installation, start-up and maintenance
￭ Electrical safety precautions
These electrical safety precautions are for all personnel who do work on the drive, motor
cable or motor.
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. Go through these steps before you begin any installation or
maintenance work.
1. Keep the cabinet doors closed when the drive is powered. With the doors open, a risk
of a potentially fatal electric shock, arc flash or high-energy arc blast exists.
2. Clearly identify the work location.
3. Disconnect all possible voltage sources. Lock and tag.
• Open the main disconnecting device of the drive.
• Open the charging switch if present.
WARNING!
The charging switch is not necessarily located within or nearby the drive
cubicle.
• Open the auxiliary voltage switch-disconnector (if present), and all other possible
disconnecting devices that isolate the drive from dangerous voltage sources.
• In the liquid cooling unit (if present), open the motor protective circuit breaker(s) of
the cooling pumps.
• If you have a permanent magnet motor connected to the drive, disconnect the motor
from the drive with a safety switch or by other means.
• Make sure that re-connection is not possible.
• Disconnect any external power sources from the control circuits.
• After you disconnect the drive, always wait 5 minutes to let the intermediate circuit
capacitors discharge before you continue.
4. Protect any other energized parts in the work location against contact.
5. Take special precautions when close to bare conductors.
16 Safety instructions
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