98
Motor brake and stop operation
(4) Regenerative brake duty alarm output and alarm signal (RBP signal)
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.
Note that [RB] is not displayed when Pr. 30 = "0".
The drive unit does not trip even when the alarm (RBP)
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 Pr. 190 or Pr. 192 (output terminal
function selection) .
REMARKS
The MRS signal can also be used instead of the X10 signal. (Refer to page 102)
Refer to page 27 to 31 for connecting the brake resistor (MRS type, MYS type), high-duty brake resistor (FR-ABR), brake unit
(FR-BU2), high power factor converter (FR-HC), and power regeneration common converter (FR-CV).
NOTE
When terminal assignment is changed using Pr. 178 to Pr. 182 (input terminal function selection) and Pr. 190, Pr. 192 (output
terminal function selection), the other functions may be affected. Set parameters after confirming the function of each
terminal. (Refer to page 100)
WARNING
The value set in Pr. 70 must not exceed the setting of the brake resistor used.
Otherwise, the resistor can overheat.
Parameters referred to
Pr. 178 to Pr. 182 (input terminal function selection) Refer to page 100
Pr. 190, Pr. 192 (output terminal function selection)
Refer to page 106
Regenerative brake
pre-alarm (RBP)
Time
ONONOFF
100
85
Ratio of the brake
duty to the Pr. 70
setting (%)
