Common Bus Regeneration With Harmonic Suppression Enabled - Mitsubishi Electric FR-XC-18.5K-PWM Instruction Manual

Common bus regeneration mode with harmonic suppression enabled
MC
MCCB
∗7
Fuse R/L1
∗7
Fuse S/L2
Power
supply
∗7
Fuse T/L3
∗1
Never connect the power supply to terminals R/L1, S/L2, and T/L3 on
the inverter. Incorrect connection will damage the inverter and the
converter.
∗2
Connect between the inverter terminal P/+ and the converter terminal
P/+ and between the inverter terminal N/- and the converter terminal
N/- for polarity consistency.
Connecting opposite polarity of terminals P/+ and N/- will damage the
converter and the inverter.
∗3
Confirm the correct phase sequence of three-phase current to
connect between the reactor and the converter, and between the
power supply and the converter (terminals R/L1, S/L2, and T/L3).
Incorrect connection will damage the converter.
∗4
Always connect between the power supply and terminals R/L1, S/L2,
and T/L3 of the converter. Operating the inverter without connecting
them will damage the converter.
∗5 Assign the X10 signal to any of the input terminals.
∗6 Do not connect anything to terminal P4.
∗7 Install the UL listed fuse (refer to
reactor to meet the UL/cUL standards.
∗8 Do not install an MCCB or MC between the reactor and the converter.
Doing so disrupts proper operation.
CAUTION
 In the common bus regeneration mode, always connect between the converter terminal RYB and the inverter terminal to which the X10
(MRS) signal is assigned, and also connect between the converter terminal SE and the inverter terminal SD. If the terminals are not
connected, the converter may be damaged.
NOTE
• The control logic (sink logic/source logic) of the converter and the inverter must be matched. The converter does not operate
properly if the control logic is not consistent with each other.
(Refer to page 51
control logic of the inverter.)
• Keep the wiring length between terminals as short as possible.
• When the power is distorted or falls off sharply, the reactors may generate abnormal acoustic noise. This acoustic noise is
caused by the power supply fault and not by the damage of the converter.
FR-XC
FR-XCB
∗3∗8
R2/L12 R2/L12
S2/L22 S2/L22
T2/L32 T2/L32
LOH1
LOH
SOURCE
LOH2
RES
SOF SINK
SD
SD
PC
FAN1
FAN
∗3∗4 R/L1
PU
connector
S/L2
T/L3
page 179) on the input side of the
for the switching of the control logic. Refer to the Instruction Manual of the inverter for the switching of the
∗6
P4
Junction terminal
P/+
Fuse
N/- Fuse
RYA
RYB
RSO
SE
C
B
A
Junction terminal
Fuse
Fuse
Junction terminal
Fuse
Fuse
INSTALLATION AND WIRING
Wiring
Inverter
∗1
R/L1 U
S/L2 V
IM M
T/L3 W
R1/L11
S1/L21
P/+
∗2
N/-
X10(MRS)
*5
RES
SD
Inverter
*1
R/L1 U
S/L2 V
IM M
T/L3 W
R1/L11
S1/L21
P/+
∗2
N/-
∗5
X10(MRS)
RES
SD
Inverter
∗1
R/L1 U
S/L2 V
IM M
T/L3 W
R1/L11
S1/L21
P/+
∗2
N/-
X10(MRS) ∗5
RES
SD
59
2