Wiring Of The Main Circuit Terminals; Terminals; Terminal Layout And Connection Specifications; Wiring Of The Ac Power Input Terminals R, S, T - Mitsubishi Electric MELIPM Series Instruction Manual

3.2 Wiring of the Main Circuit Terminals

3.2.1 Terminals

Symbols Name
AC power input
R, S, T
terminals
Motor connection
U, V, W
terminals
Brake resistor
P/+, PR
connection terminals
DC reactor
P/+, P1
connection terminals
P/+, N/- DC terminals
Ground terminals

3.2.2 Terminal layout and connection specifications

CX522-0.4, 0.75K
Layout
P1
N/-
R/L1S/L2T/L3
Screw size
M3.5
Tighten the terminal screws to the specified torque. Undertightening
can cause an inter-terminal short circuit or malfunction. Overtightening
can cause the screws and unit to be damaged, resulting in a short
circuit malfunction or the like.

3.2.3 Wiring of the AC power input terminals R, S, T

Connect these terminals to the AC power supply. You need not match the phase
sequence.
Always apply power to only the AC power input terminals R, S, T.
Applying power to the other terminals will damage the unit.
Connect to the commercial power supply.
Connect to a dedicated variable-speed synchronous
motor.
Connect the brake resistor (option).
Disconnect the jumper from terminals P/+-P1 and
connect the FR-BEL power factor improving DC
reactor (option).
Connect to the BU brake unit (option).
Terminals for connection of the ground cables. (There
are two terminals.)
PR
P/+
U V W
TB1
Tightening torque
1.2N•m
CAUTION
Power supply
No-fuse breaker
CAUTION
3-3
Get other manuals https://www.bkmanuals.com
Description
CX522-1.5K to 3.7K
Layout
N/- P/+
PR P1
R/L1S/L2T/L3
TB2
Screw size
M4
R S T
R S T
3. WIRING
U V W
TB1
Tightening torque
1.5N•m
3