
2
BCN-C22005-969
2
Note for terminal P3 (200/400 V class only)
Some descriptions about terminal P3 are incorrect in the Instruction Manual. The descriptions are corrected as
follows.
Details on the main circuit terminals
Use terminal P3 only when a brake resistor is connected.
[Incorrect]
[Correct]
Terminal connection diagrams
In the terminal connection diagrams, the wiring of the optional brake unit is corrected as follows.
Terminal
symbol
Terminal name
Terminal function description
P3, PR
Brake resistor connection for FR-A820-
00770(15K) to 01250(22K), or FR-
A840-00470(18.5K) to 01800(55K)
Connect an optional brake resistor across terminals P3 and PR.
Connecting a brake resistor increases the regenerative braking
capability.
P/+, N/-
Brake unit connection
Connect the brake unit (FR-BU2, FR-BU, BU), power regeneration
common converter (FR-CV), power regeneration converter (MT-RC),
high power factor converter (FR-HC2), multifunction regeneration
converter (FR-XC), or DC power supply (under DC feeding mode).
When connecting multiple inverters, FR-A820-00770(15K) to
01250(22K) or FR-A840-00470(18.5K) to 01800(55K), in parallel using
the FR-CV, FR-HC2, or FR-XC, always use either terminal P/+ or P3 for
the connection. (Do not use terminals P/+ and P3 together.)
Do not connect the DC power supply between terminals P3 and N/-. Use
terminals P/+ and N/- for DC feeding.
P3, N/-
Brake unit connection for FR-A820-
00770(15K) to 01250(22K), or FR-
A840-00470(18.5K) to 01800(55K)
Terminal
symbol
Terminal name
Terminal function description
P3, PR
Brake resistor connection for FR-A820-
00770(15K) to 01250(22K), or FR-
A840-00470(18.5K) to 01800(55K)
Connect an optional brake resistor across terminals P3 and PR.
Connecting a brake resistor increases the regenerative braking
capability.
P/+, N/-
Brake unit connection
Connect the brake unit (FR-BU2, FR-BU, BU), power regeneration
common converter (FR-CV), power regeneration converter (MT-RC),
high power factor converter (FR-HC2), multifunction regeneration
converter (FR-XC), or DC power supply (under DC feeding mode).
[Incorrect]
[Correct]
Jumper
P1
Earth
(Ground)
R
P3
PR
N/-
P/+
Brake unit
(Option)
DC reactor
(FR-HEL)
Brake resistor
Inrush
current
limit circuit
FR-A820-00770(15K) to 01250(22K),
FR-A840-00470(18.5K) to 01800(55K)
Jumper
P1
Earth
(Ground)
R
P3
PR
N/-
P/+
Brake unit
(Option)
DC reactor
(FR-HEL)
Brake resistor
Inrush
current
limit circuit
FR-A820-00770(15K) to 01250(22K),
FR-A840-00470(18.5K) to 01800(55K)
BCN-C22005-969_ENG.fm 2 ページ 2021年9月6日 月曜日 午後6時45分
Downloaded from