Mitsubishi Electric FR-XC-18.5K-PWM Instruction Manual page 63

Wiring
2.8.3
Wiring (power regeneration mode)
Wiring between the power supply and the reactor
• Cable gauge differs by the capacity. Select an appropriate cable by referring to
MCCB
MC
∗1 ∗1
R/L1
S/L2
Power
supply
T/L3
∗1 Select a MCCB and a MC according to the inverter capacity.
∗2 For selection of MCCB for the converter, refer to
Wiring between the reactor and the converter
• Cable gauge differs by the capacity. Select an appropriate cable by referring to
Dedicated reactor Multifunction regeneration
(FR-XCL)
R2/L12 R2/L12
R/L1
S/L2 S2/L22 S2/L22
T3/L32
T/L3 T3/L32
Total wiring length
Wiring between the converter and the inverter
• For the cable gauge of the cable for the main circuit terminals P/+ and N/- (P to P and N to N), refer to
Multifunction regeneration
converter
R2/L12 P4
∗1
P/+
S2/L22
N/-
T2/L32
Main circuit wiring length
NOTE
• Connecting opposite polarity of terminals P4 and N/- will damage the converter.
62
INSTALLATION AND WIRING
AC reactor
(FR-HAL)
To inverter
MCCB
Dedicated reactor
∗2
(FR-XCL)
R/L1
S/L2
T/L3
page
converter
P/+
N/-
10 m or shorter
Inverter
∗1
R/L1
S/L2
T/L3
∗2
P/+
∗2
N/-
5 m or shorter
R2/L12
S2/L22
T2/L32
19.
Installation of a fuse on each cable is recommended to prevent the damage from
spreading in case of an inverter failure. Select the fuse according to the motor capacity.
To use a motor whose capacity is smaller than the inverter capacity by two ranks or
more, select the fuse with the capacity that is one rank lower than the inverter capacity.
Refer to the fuse selection table on
Do not install any MCCB between the inverter and the converter (P to P and N to N).
page 43 to perform wiring.
page 43 to perform wiring.
page
page 21.
43.