Main Circuit Terminals; Details On The Main Circuit Terminals; Main Circuit Terminal Layout And Wiring To Power Supply And Motor - Mitsubishi Electric 800 Series Instruction Manual

2.5

Main circuit terminals

2.5.1

Details on the main circuit terminals

Terminal symbol
R/L1, S/L2, T/L3 AC power input
U, V, W Inverter output
P/+, PR Brake resistor connection for
P/+, N/- Brake unit connection
P/+, P1 DC reactor connection for
Earth (ground)
2.5.2 Main circuit terminal layout and wiring to power
supply and motor
FR-E860-0.75K(0017) to 2.2K(0040)
N/- P/+
R/L1 S/L2 T/L3
PR
Power supply
NOTE
• Make sure the power cables are connected to the R/L1, S/L2, and T/L3. (Phase need not be matched.) Never connect the
power cable to the U, V, and W of the inverter. Doing so will damage the inverter.
• Connect the motor to U, V, and W. (The phases must be matched.)
38
2. Installation and Wiring
2.5 Main circuit terminals
Terminal name
Jumper
Earthing (grounding)
terminal
Motor
Terminal function description
Connect these terminals to the commercial power supply.
Connect these terminals to a three-phase squirrel cage motor or a PM
motor.
Connect a brake resistor across terminals P/+ and PR.
Connect the brake unit.
Remove the jumper across terminals P/+ and P1, and connect a DC
reactor.
When a DC reactor is not connected, the jumper across terminals P/+
and P1 should not be removed.
For earthing (grounding) the inverter chassis. Be sure to earth (ground)
the inverter.
FR-E860-3.7K(0061) to 7.5K(0120)
Jumper
Earthing (grounding)
terminal
M
R/L1 S/L2 T/L3
N/- P/+ PR
Power supply
Refer to
page
—
—
70
—
71
42
Earthing (grounding)
M
terminal
Motor