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106
Motor brake and stop operation
(6) Power supply specification at DC feeding
(7) Regenerative brake duty alarm output and alarm signal (RBP signal) (01800 or more)
400V class
Rated input DC voltage
537VDC to 679VDC
Permissible fluctuation
457VDC to 740VDC
CAUTION
As voltage between P/+, N/- becomes 830V or more temporarily at regeneration, make selection of DC power supply carefully.
100%: regenerative overvoltage protection operation value
[RB] appears on the operation panel and an alarm signal (RBP) is
output when 85% of the regenerative brake duty set in
Pr. 70
is
reached. If the regenerative brake duty reaches 100% of the
Pr.
70
setting, a regenerative overvoltage (E.OV1 to E.OV3) occurs.
The inverter does not shut off the output when the alarm signal is
output.
For the terminal used for the RBP signal output, assign the
function by setting "7" (positive logic) or "107" (negative logic) in
any of
Pr. 190 to Pr. 196 (output terminal function selection)
.
REMARKS
The MRS signal can also be used instead of the X10 signal.
(Refer to page 110.)
Refer to
pages 31 to 38
for connection of the brake unit, high power factor converter (FR-HC, MT-HC) and power regeneration
common converter (FR-CV).
When AC power is connected to terminal R/L1, S/L2, T/L3 during DC feeding with "2, 10 or 11" (DC feeding) set in
Pr. 30
, an
option alarm (E.OPT) occurs.
When DC feeding operation is performed with "2, 10, 11, 20, or 21" (DC feeding) set in
Pr. 30
, undervoltage protection (E.UVT)
and instantaneous power failure (E.IPF) are not detected.
CAUTION
Changing the terminal assignment using
Pr. 178 to Pr. 189 (input terminal function selection)
may affect the other functions. Please
make setting after confirming the function of each terminal.
WARNING
The value set in
Pr. 70
must not exceed the setting of the brake resistor used.
Otherwise, the resistor can overheat.
i
Parameters referred to
i
Pr. 57 Restart coasting time
Refer to page 136
Pr. 178 to Pr.189 (input terminal function selection)
Refer to page 110
Pr. 190 to Pr.196 (output terminal function selection)
Refer to page 116
Pr. 261 Power failure stop selection
Refer to page 140
Ratio of brake duty
to the Pr. 70 setting
Regenerative
brake prealarm
(RBP)
OFF
ON
100%
85%
Tim
ON
Содержание F700
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