Main Circuit Connection; Specification Of Main Circuit Terminal - Mitsubishi Electric FR-A700 Instruction Manual

Wiring
3.3

Main circuit connection

3.3.1

Specification of main circuit terminal

Terminal
L1, L2, L3
U, V, W
L11, L21
P/+, PR
P/+, N/−
P/+, P1
PR, PX
Tab. 3-2: Specification of main circuit terminal
Connecting a DC reactor to the 01800
● When using the inverter for LD or SLD rating, always connect the supplied DC reactor.
● To improve power factor and suppress harmonics with a reactor when using the inverter
for ND or HD rating, connect the supplied DC reactor.
● It is not necessary to connect the supplied DC reactor for operation other than the above.
When not connecting the supplied DC reactor, connect a supplied jumper across
terminals P/+ and P1.
● The inverter operates only when either a DC reactor or jumper is connected.
NOTE
When connecting a dedicated brake resistor (FR-ABR) and brake unit (FR-BU, BU) remove
jumpers across terminals PR-PX (00250 or less).
FR-A700 EC
Name Description
AC power input Connect to the commercial power supply
(380–480V AC, 50/60Hz; for 01800 or more: 380–500V AC)
Keep these terminals open when using the high power factor converter
(FR-HC, MT-HC) or power regeneration common converter (FR-CV).
Inverter output Voltage ouput of the inverter
(3 ~, 0V–power supply voltage, 0.2–400 Hz)
Power supply for Connected to the AC power supply terminals L1 and L2. To retain the alarm
control circuit display and alarm output or when using the high power factor converter (FR-
HC, MT-HC) or power regeneration common converter (FR-CV), remove the
jumpers from terminals L1-L11 and L2-L21 and apply external power to
these terminals.
Do not turn off the power supply for control circuit (L11, L21) with the main
circuit power (L1, L2, L3) on. Doing so may damage the inverter. The circuit
should be configured so that the main circuit power (L1, L2, L3) is also
turned off when the power supply for control circuit (L11, L21) is off.
00380 or less: 60VA, 00470 or more: 80VA
Brake resistor Remove the jumper from terminals PR-PX (00250 or less) and connect an
connection optional brake resistor (FR-ABR) across terminals P/+-PR.
(00620 or less) For the 00620 or less, connecting the resistor further provides regenerative
braking power.
Brake unit connection Connect the brake unit (FR-BU, BU and MT-BU5), power regeneration com-
mon converter (FR-CV), high power factor converter (FR-HC and MT-HC) or
power regeneration converter (MTRC).
DC reactor For the 01160 or less, remove the jumper across terminals P/+ - P1 and con-
connection nect the DC reactor. (As a DC reactor is supplied with the 01800 or more as
standard, be sure to connect the DC reactor.
Built-in brake circuit When the jumper is connected across terminals PX-PR (initial status), the
connection built-in brake circuit is valid. (Provided for the 00250 or less.)
PE
For earthing the inverter chassis. Must be earthed.
Main circuit connection
)
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