Mitsubishi Electric FR-A700 Technical Manual page 298

(1) When using a built-in brake resistor
Set [Pr. 30 = 0, 10, 20]. The [Pr. 70] setting is invalid.
At this time, the regenerative brake duty is as follows.
(The built-in brake resistor is provided for the 7.5K or
less.)
Inverter type
FR-A720-0.4K to 3.7K
FR-A720-5.5K and 7.5K
FR-A740-0.4K to 7.5K
Other than above (without built-in
brake resistor)
F700 E700 D700
brake resistor.
(2) When using
type)
E700 D700
Set [Pr. 30 = 0]. [Pr. 70] setting becomes invalid.
At this time, the regenerative brake duty is as follows.
Inverter type
FR-E720-0.4K to 3.7K
FR-E720-5.5K to 15K
FR-E740-0.4K to 15K
FR-D740-0.4K to 15K
(3) When using brake resistor (MYS type)
MYS type brake resistor is available for 200V class
3.7K. At this time, set [Pr. 30 = 1], [Pr. 70 = 6%].
(4) When using the high-duty brake resistor
(FR-ABR) (22K or less)
Set [Pr. 30 = 1, 11, 21].
Set [Pr. 70] as follows.
Capacity [Pr. 70] Setting
7.5K or less
11K to 22K
High-duty brake resistor (FR-ABR) cannot be
connected to
A700
0.2K or less, or
E700 D700
(5) When the brake unit (FR-BU2, BU, FR-BU)
is used.
common
Set [Pr. 30 = 0, 10, 20]. The [Pr. 70] setting is invalid.
(6) When using the brake unit (MT-BU5) or
power regeneration converter (MT-RC)
(75K or more)
Set [Pr. 30 = 1, 11, 21].
Set [Pr. 70 = 10%] when using the brake unit (MT-BU5).
Set [Pr. 70 = 0%] when using the regeneration
converter (MT-RC).
A700
Duty
3%
2%
2%
0%
are not equipped with a built-in
brake resistor
Duty
3%
2%
2%
2%
A700 E700
10%
6%
30K or more,
.
F700
A700 F700
(7) When
converter
regeneration common converter (FR-CV)
A700
Set [Pr. 30 = 2]. The [Pr. 70] setting is invalid.
Also built-in brake transistor is invalid.
Changing the setting to [Pr. 30 = 2] causes inverter
reset and "Err" to be displayed on the operation
panel.
Use any of [Pr. 178 to 189 input terminal function
assignment] to assign the following signals to the
contact input terminals.
(a) X10 signal: FR-HC, MT-HC connection, FR-CV
(MRS
(b) X11
For the terminal used for the X10, X11 signal input,
set 10 and 11 in any of [Pr. 178 to 189] to assign the
function.
(8) When using power regeneration common
D700
converter (FR-CV), high power factor
converter (FR-HC)
Set [Pr. 30 = 0]. [Pr. 70] setting is invalid. Assign
inverter operation enable signal (X10) to contact
input terminal. Shut off the inverter output by the
inverter operation enable signal (X10) to make
protective coordination with FR-HC and FR-CV.
Input RDY signal of FR-HC (RDYB signal of FR-CV).
For the terminal to input X10 signal, assign the
function by setting "10 (X10)" to any of [Pr. 178 to 184
Input terminal function selection].
(9) When
instantaneous power failure function is
valid while using high power factor
converter (FR-HC)
When automatic restart after instantaneous power
failure is valid [Pr. 57 Restart coasting time ≠ 9999] in
FR-HC and inverter, set [Pr. 30 = 2].
Set [Pr. 70 = 0% (initial value)].
RDY signal turns ON if FR-HC detects power failure
during inverter operation, and motor coasts. If RDY
signal is turned OFF after power is restored, inverter
detects motor speed (depending on the [Pr.162
Automatic restart after instantaneous power failure
selection] setting) and restarts after instantaneous
power failure. Changing the setting to [Pr. 30 = 2]
causes inverter reset and "Err" to be displayed on the
operation panel.
332
using the high
(FR-HC, MT-HC)
F700
connection (inverter operation enable signal)
To make protective coordination with the FR-HC,
MT-HC or FR-CV, use the inverter operation
enable signal to shut off the inverter output.
Input the RDY signal of the FR-HC, MT-HC
(RDYB signal of the FR-CV).
signal: FR-HC,
(instantaneous power failure detection signal)
When the setting has been made to hold the
mode at occurrence of an instantaneous power
failure for RS-485 communication operation, use
this signal to hold the mode.
Input the Y1 or Y2 signal (instantaneous power
failure detection signal) of the FR-HC, MT-HC.
E700 D700
automatic
E700 D700
PARAMETER
power factor
or power
MT-HC connection
restart after