Mitsubishi Electric 800 Series Instruction Manual page 611

(G) Control parameters
NOTE
• If the X10 signal is unassigned, the MRS signal can be used as the X10 signal. At this time, logic setting for the signal will
follow Pr.17 MRS input selection.
• MRS signal is enabled from any of the communication or external input, but when using the MRS signal as Inverter run
enable signal (X10), it can be used as input from external.
• When the terminal assignment is changed with Pr.178 to Pr.189 (Input terminal function selection), wiring may be
mistaken due to different terminal name and signal contents, or may affect other functions. Set parameters after confirming
the function of each terminal.
Regenerative brake usage rate alarm output and alarm signal (RBP
signal) (Standard models)
100%: Regeneration overvoltage protection operation value
Ratio of brake duty
to the Pr. 70 setting
Regenerative
brake pre-alarm
(RBP)
NOTE
• When Pr.30 = "0 (initial value), 10 or 20" for FR-A860-00320 or higher, the RB display is disabled.
• When the terminal assignment is changed with Pr.190 to Pr.196 (Output terminal function selection), wiring may be
mistaken due to different terminal name and signal contents, or may affect other functions. Set parameters after confirming
the function of each terminal.
Reset when the power is supplied to the main circuit (Pr.30 = "100, 101,
110, 111, 120 or 121")
• While the power is supplied only to the control circuit (R1/L11, S1/L12 input or 24 V external power supply) with Pr.30 =
"100 or higher", the inverter reset is not performed when the power is supplied (R/L1, S/L2, T/L3 input) to the main circuit.
• When a communication option, etc. is used, communication interruption due to the inverter reset can be avoided.
NOTE
• When the power is supplied to the main circuit while the inverter protective function is activated, the inverter reset is
performed even if it the setting is "No reset" at power ON.
610
PARAMETERS
100%
85%
Time
OFF
ON ON
• When the usage rate of regenerative brake reaches 85% of the
Pr.70 setting, [RB] is displayed on the operation panel and
alarm signal (RBP) is output. When it reaches 100% of the
Pr.70 setting, it will become regenerative overvoltage (E.OV[]).
• The inverter will not shutoff output with the alarm signal.
• For the terminal to be used for the RBP signal output, set "7
(positive logic) or 107 (negative logic)" to one of Pr.190 to
Pr.196 (Output terminal function selection), and assign the
function.