Explanation Of Main Circuit Terminals - Mitsubishi FR-S500 Instruction Manual

Single-phase 100V power input
NFB
Power
supply
REMARKS
To ensure safety, connect the power input to the inverter via a magnetic contactor and earth leakage
circuit breaker or no-fuse breaker, and use the magnetic contactor to switch power on-off.
The output is three-phase 200V.
1.1.2

Explanation of main circuit terminals

(1) Main circuit
Terminal
Terminal Name
Symbol
R/L1, S/L2,
AC power input
T/L3 (*1)
U, V, W Inverter output
PR (*2)
−
P/+, N/
Power factor
improving DC
P/+, P1
*1. When using single-phase power input, terminals are R/L1 and S/L2.
*2. The PR terminal is provided for the FR-S520E-0.4K to 3.7K-NA.
MC
R/L
1
S/L
2
Connect to the commercial power supply.
Connect a three-phase squirrel-cage motor.
Connect the brake unit (BU), power regeneration
Brake unit
common converter (FR-CV) or high power factor
connection converter (FR-HC). (The N/- terminal is not provided for
the FR-S520E-0.1K to 0.75K-NA.)
Remove the jumper across terminals P - P1 and connect
the optional power factor improving DC reactor (FR-
BEL(-H)).
reactor
(The single-phase 100V power input model cannot be
connection
connected.)
Ground
For grounding the inverter chassis. Must be grounded.
Standard connection diagram and terminal specifications
U
V
W
Description
Do not use PR terminal.
3
Motor
IM
Ground
1