Hitachi L300P User Manual
Page 58
L300P Inverter
In
v
e
rt
er Mounting
and In
stallati
on
2–19
NOTE: An inverter powered by a portable or emergency diesel power generator may result in a
distorted power waveform, overheating the generator. In general, the generator capacity should
be at least five times that of the inverter (kVA).
CAUTION: Be sure that the input voltage matches the inverter specifications:
• Three phase 200 to 240V 50/60Hz
• Three phase 380 to 480V 50/60Hz
CAUTION: Be sure not to power a three-phase-only inverter with single phase power. Other-
wise, there is the possibility of damage to the inverter and the danger of fire.
CAUTION: Be sure not to connect an AC power supply to the output terminals. Otherwise,
there is the possibility of damage to the inverter and the danger of injury and/or fire.
CAUTION: Remarks for using ground fault interrupter breakers in the main power supply:
Adjustable frequency inverters with CE-filters (RFI-filter) and shielded (screened) motor
cables have a higher leakage current toward Earth GND. Especially at the moment of switching
ON this can cause an inadvertent trip of ground fault interrupter breakers. Because of the recti-
fier on the input side of the inverter there is the possibility to stall the switch-off function
through small amounts of DC current. Please observe the following:
•
Use only short time-invariant and pulse current-sensitive ground fault interrupter
breakers with higher trigger current.
•
Other components should be secured with separate ground fault interrupter breakers.
•
Ground fault interrupter breakers in the power input wiring of an inverter are not an
absolute protection against electric shock.
CAUTION: Be sure to install a fuse in each phase of the main power supply to the inverter.
Otherwise, there is the danger of fire.
CAUTION: For motor leads, ground fault interrupter breakers and electromagnetic contac-
tors, be sure to size these components properly (each must have the capacity for rated current
and voltage). Otherwise, there is the danger of fire.
Power Output
R
S
T
T1
T2
T3
U
V
W
L1
L3
NOTE:
L1, L2, L3:
Three-phase 200 to 240V 50/60 Hz
Three-phase 380 to 480V 50/60 Hz
L2
Power Input