Mitsubishi Electric FR-A700 Technical Manual page 123

1.6.4 Regenerative brake duty
Across P/+ and PR terminals, connect only an external regenerative brake discharge resistor.
Do not connect an electronic magnetic brake. When using
an external, large thermal-capacity discharge resistor for
regenerative brake in
A700
(between terminal PR and PX) of the built-in discharge
resistor for regenerative brake.
1.6.5 I/O signal
(common)
Do not apply a voltage higher than the permissible voltage to the inverter I/O signal circuits.
The I/O devices may be damaged if a voltage higher than
the value indicated on page 28 is applied to the inverter I/O
signal circuits or reverse polarity is used. Especially check
the wiring to prevent the frequency setting potentiometer
from being connected incorrectly to short terminals 10 (E)-5.
1.6.6 Connection to a large-capacity power supply
When connecting the inverter near a large-capacity power supply, insert a power
factor improving reactor.
The inverter input current varies with the impedance of the
power supply. (i.e. the power supply's power factor varies.)
When the power supply capacity is 1000KVA or more for
(500kVA or more for
A700 F700
power factor improving reactor. (Refer to page 507 for
details)
A700 E700 D700
(A700)
, always remove the jumper
common
), insert a
E700 D700
common
(common)
116
SPECIFICATIONS