Main Circuit Terminal Specification; Details On The Main Circuit Terminals; Main Circuit Terminal Block Layout - Mitsubishi Electric FR-XC-18.5K-PWM Instruction Manual

2.6

Main circuit terminal specification

2.6.1

Details on the main circuit terminals

Terminal
Terminal name
symbol
R/L1,
Power supply phase
S/L2,
detection
T/L3
R2/L12, S2/
AC power input
L22, T2/L32
R1/L11, S1/
Power supply for the
L21 control circuit
DC power supply for
P/+, N/- the common bus
regeneration mode
DC power supply for
P4, N/-
the power
regeneration mode
Earth (ground)
2.6.2

Main circuit terminal block layout

FR-XC-(H)7.5K, (H)11K
Charge lamp
Earth (ground) terminal
(for 7.5K *1)
∗1 Screws for earthing (grounding) for the 7.5K
∗2 Screws for earthing (grounding) for the 11K
These terminals are used to detect the phase and voltage of the power supply, and to input
power to the control circuit. Connect each of them to terminals of the same name on both
the power supply and the reactor. Operating the inverter without connecting them will
damage the converter.
Connect each of them to terminals of the same name on the reactor.
These terminals are connected to the phase detection terminals R/L1 and S/L2 in the initial
status. To retain the fault display and fault output, remove the jumpers (cables) and apply
external power through these terminals.
Connect them to the inverter terminals P/+ and N/-.
Connect them to the inverter terminals P/+ and N/-.
For earthing (grounding) the converter chassis. This must be earthed (grounded).
P4
P/+
N/-
R/L1
R1/L11
S/L2
S1/L21
T/L3
R2/L12 S2/L22 T2/L32
Earth (ground) term
(for 11K *2)
Main circuit terminal specification
Description
FR-XC-(H)15K
Charge lamp
R2/L12 S2/L22 T2/L32
INSTALLATION AND WIRING
P4
P/+
N/-
R1/L11
R/L1
S1/L21
S/L2
T/L3
Earth (ground) terminal
2
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