Operational Warnings - Eaton PowerXL DB1 Installation Manual

4 Operation

4.2 Operational warnings

4.2 Operational warnings
68
Please observe the following notes.
DANGER

Commissioning is only to be completed by qualified technicians.
DANGER

Dangerous Electrical Voltage!
The safety instructions on pages I and II must be followed.
DANGER

The components in the variable frequency drive's power section
are energized if the supply voltage (mains voltage) is connected.
For instance: L1/L, L2/N, L3, DC+, BR, U/T1, V/T2, W/T3 power
terminals.
The control signal terminals are isolated from the line power
potential.
There can be a dangerous voltage on the relay terminals even if
the variable frequency drive is not being supplied with mains
voltage (e.g., during integration of relay contacts into control
systems with voltage > 48 V AC / 60 V DC).
DANGER

The components in the variable frequency drive's power section
remain energized up to five (5) minutes after the supply voltage
has been switched off (DC link voltage capacitor discharging
time).
Pay attention to hazard warnings!
DANGER

Following a shutdown (fault, mains voltage off), the motor can
start automatically (when the supply voltage is switched back
on) if the automatic restart function has been enabled
(￫ parameter P-31).
DB1 Variable Frequency Drives 09/17 MN040031EN www.eaton.com