4. Ground and short-circuit.
5. Provide protection against adjacent live parts.
To energize the system, apply the measures in reverse order.
2.4
Safe handling
Electric shock from external supplies
Even if the circuit breaker is open, parts of the drive can be under voltage (live) as a result of the
auxiliary voltage at the premagnetization, precharging or demagnetization transformers. This
danger is not limited to the drive, but can also occur with components that are electrically
connected to the drive (e.g. circuit breakers or isolators). Touching live parts can result in death,
serious injury and material damage
• Isolate all components that can feed voltage to the drive before commencing work.
Electric shock due to high voltages in operation
When operating this equipment very high voltages develop. Even after switching off the mains
voltage, or while the connected machine is still turning, high voltages can remain for a
prolonged length of time. Touching live parts can result in death or serious injury.
• Carefully comply with the 5 safety rules (Page 11).
• Operate the device properly.
• Service and maintain the device regularly and correctly.
Danger due to high voltage in operation
When operating this equipment very high voltages develop. Even after switching off the mains
voltage, or while the connected machine is still turning, high voltages can remain for a
prolonged length of time. High voltages can cause death or serious injury if the safety rules are
not observed or if the equipment is handled incorrectly.
• Operate the converter properly.
• Always observe the "The five safety rules (Page 11)" when carrying out any work.
• Only remove the covers using the methods described by these operating instructions.
• Maintain the converter regularly and correctly.
• After you have switched off the supply voltage, do not carry out any maintenance or repair
work until the one minute discharge time for the RC snubber circuit capacitor has elapsed.
Safety information
2.4 Safe handling
3rd Party LCI Control Upgrade
12
Operating Instructions, 02/2022, A5E31872818
