Mitsubishi Electric Freqrol-A100 Instruction Manual page 30

Connection of the conven-
Connect the BU brake unit correctly as shown below. Incorrect
tional BU brake unit (option) connection will damage the inverter
<Connection method>
Inverter
j
lr$!-+ke
Discharge resiston
i n /
Note: 1. The wiring distance between the inverter, brake unit
and discharge resistors should be within 2m. If twisted
wires are used, the distance should be within 5m.
Connection of the FR-RC
Connect the FR-RC power return converter as shown below so
power return converter (op-
that the inverter terminals (P, N) and FR-RC power return con-
tion)
verter terminals match with each other.
<Connection method>
(
For Dower coordination, always in-
)
I
stali the power factor improvihg AC
reactor (FR-BALL
i
connection of the FR-BAL power fac-
tor improving AC reactor (option)
When using two,or more inverters
within the same system, small wiring
impedance between the inverters may
cause a regenerative current from the
power return converter to sneak, re-
sulting in the overcurrent alarm of the
other inverters. Therefore, install the
power factor improving AC reactors
together on the power supply side.
Inverter
I Inverter
F R - R C
NFB FR-BAL RIL1 SlL2 TlL3
power
supply
-
Connection of the FR-HC
When connecting the high power factor converter (FR-HC) for
high power factor converter
power harmonic suppression, wire it securely as shown below.
(option unit)
Incorrect wiring will cause the high power factor converter and
inverter to be damaged. After connecting it securely, set "3" or "4"
or "5" in Pr. 30 "high power factor converter connection selection"
(Refer to page 78)
'
<Connection method> High power factor converter (FR-HC)
m F ( ,K,qE,
m ,
1
L"
NFB
A T -
power supply
- 2 d