Main Circuit - Mitsubishi Electric FR-S500 Series 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.

3.2 Main circuit

3.2.1 Explanation of main circuit terminals
Terminal
Terminal Name
Symbol
R/L1, S/L2,
AC power input
T/L3 (*1)
U, V, W Inverter output
PR (*2)
−
P/+, N/
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
DC reactor
the optional DC reactor (FR-HEL(-H)/FR-BEL(-H)).
connection (The single-phase 100V power input model cannot be
connected.)
Ground
For grounding the inverter chassis. Must be grounded.
U
V
W
Description
Do not use PR terminal.
7
Main circuit
Motor
IM
Ground
3