Download  Print this page

Connection Of Stand-alone Option Units; Connection Of The Brake Unit (fr-bu/mt-bu5)(fr-b-75k Or More) - Mitsubishi Electric FR-B-750 to 75K Instruction Manual

Fr-b-750 to 75k (200v class), fr-b-750 to 110k (400v class).
Hide thumbs

Advertisement

Connection of stand-alone option units

2.4 Connection of stand-alone option units
The inverter accepts a variety of stand-alone option units as required.
Incorrect connection will cause inverter damage or accident. Connect and operate the option unit carefully in
accordance with the corresponding option unit manual.
2.4.1

Connection of the brake unit (FR-BU/MT-BU5)(FR-B-75K or more)

When connecting the brake unit (FR-BU(H)/MT-BU5) to improve the brake capability at deceleration, make connection
as shown below.
(1) Connection with the FR-BU
Three-phase AC
power supply
*1
Connect the inverter terminals (P/+, N/-) and brake unit (FR-BU (H)) terminals so that their terminal signals match with each other.
(Incorrect connection will damage the inverter.)
*2
When the power supply is 400V class, install a step-down transformer.
*3
The wiring distance between the inverter, brake unit (FR-BU) and resistor unit (FR-BR) should be within 5m. If twisted wires are
used, the distance should be within 10m.
CAUTION
⋅ When used with the 55K or less, another explosion-proof test is necessary.
⋅ If the transistors in the brake unit should become faulty, the resistor can be unusually hot, causing a fire. Therefore, install a
magnetic contactor on the inverter's input side to configure a circuit so that a current is shut off in case of fault.
34
MCCB
T
*2
MC
Explosion-
proof
motor
R/L1
U
S/L2
V
IM
T/L3
W
Inverter
*1
N/−
*3
5m or less
ON
OFF
MC
FR-BR
TH1
P
PR
TH2
FR-BU
PR
HA
P/+
HB
N/−
HC

Advertisement

Table of Contents

   Related Manuals for Mitsubishi Electric FR-B-750 to 75K

Comments to this Manuals

Symbols: 0
Latest comments: