28
Connection of stand-alone option unit
2.4 Connection of stand-alone option unit
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 a dedicated external brake resistor (MRS type, FR-ABR)
(FR-D740-012 or more, FR-D720S-025 or more)
Install a dedicated brake resistor (MRS type, FR-ABR) outside when the motor is made to run by the load, quick deceleration
is required, etc. Connect a dedicated brake resistor (MRS type, FR-ABR) to te and PR.
(For the locations of te and PR, refer to the terminal block layout
.)
Set parameters below.
∗1
Do not remove a jumper across te and P1 except when connecting a DC reactor.
Connected Brake
Resistor
Pr. 30 Regenerative function selection
Setting
Pr. 70 Special regenerative brake duty
Setting
MRS type
0 (initial value)
—
FR-ABR
1
10%
NOTE
The brake resistor connected should only be the dedicated brake resistor.
FR-D740-012 to 080
FR-D720S-070 and 100
FR-D740-120 to 160
Connect the brake resistor across ter and PR.
Connect the brake resistor across ter and PR.
FR-D720S-025 and 042
Connect the brake resistor across ter and PR.
Terminal
+
Brake resistor
Jumper
*1
Terminal PR
Terminal PR
Brake resistor
Jumper
*1
Terminal
+
Terminal PR
Brake resistor
Jumper
*1
Terminal
+
Summary of Contents for FR-D700 Series
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