4 Operation
4.2 Operational hazard warnings
84 DC1 Frequency Inverter 10/12 MN04020003Z-EN www.eaton.com
4.2 Operational hazard warnings
Please observe the following notes.
DANGER
Commissioning is only to be completed by qualified technicians.
DANGER
Hazardous voltage!
The safety instructions on pages I and II must be followed.
DANGER
The components in the frequency inverter’s power section are
energized if the supply voltage (mains voltage) is connected.
For instance: power terminals L1/L, L2/N, L3, DC+, DC-, BR,
U/T1, V/T2, W/T3.
The control signal terminals are isolated from the line power
potential.
There can be a dangerous voltage on the relay terminals (10, 11)
even if the frequency inverter is not being supplied with line
voltage (e.g., integration of relay contacts in control systems
with voltage > 48 V AC / 60 V DC).
DANGER
The components in the frequency inverter’s power section
remain energized up to five (5) minutes after the supply voltage
has been switched off (intermediate circuit capacitor discharg-
ing 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 (
parameters P-31).
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