Mitsubishi FR-A800

(G) Control parameters
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PARAMETERS
When using high-duty brake resistor (FR-ABR) (FR-A820-01250(22K) or
lower, FR-A840-00620(22K) or lower)
•Set Pr.30 = "1, 11, 21".
•Set Pr.70 as follows.
FR-A820-00490(7.5K) or lower, FR-A840-00250(7.5K) or lower .................... 10%
FR-A820-00630(11K) or higher, FR-A840-00310(11K) or higher .................... 6%
When using brake unit (FR-BU2) (FR-A820-03800(75K) or higher, FR-
A840-02160(75K) or higher)
• To use FR-BU2 in combination with MT-BR5, set as follows.
•Set Pr.30 = "1, 11, 21".
•Set Pr.70 = "0% (initial value)".
• Set the brake unit FR-BU2, Pr.0 Brake mode selection = "2".
NOTE
• When Pr.30 = "1, 11, 21", oL (stall prevention (overvoltage)) does not operate.
When using power regeneration converter (MT-RC)
•Set Pr.30 = "1, 11, 21".
•Set Pr.70 = "0% (initial value)".
When using the high power factor converter (FR-HC2), the power
regeneration common converter (FR-CV), or the converter unit (FR-CC2)
• To use FR-HC2 or FR-CV, set Pr.30="2". The Pr.70 setting is invalid.
• When using FR-CC2, set Pr.30="10" (initial value of separated converter type).
• Assign the following signal to a contact input terminal using any of Pr.178 to Pr.189 (input terminal function selection).
(a) Inverter run enable signal (X10): FR-HC2 connection, FR-CV connection, FR-CC2connection
To have coordinated protection with FR-HC2, FR-CV or FR-CC2, shutoff the inverter output by the X10 signal.
Input the RDY signal of the FR-HC2 (RDYB signal of FR-CV or RDA signal of FR-CC2).
(b) FR-HC2/FR-CC2 connection, instantaneous power failure detection signal (X11): FR-HC2 connection, FR-CC2
connection
During the operation using RS-485 communication, with the remote output and analog remote output functions
enabled, the X11 signal is used to store the status when the inverter is set to store the status before an
instantaneous power failure.
Input the IPF signal (instantaneous power failure detection signal) of the FR-HC2 or FR-CC2.
• For the terminal to be used for the X10 and X11 signal, set "10" (X10), "11" (X11) in Pr.178 to Pr.189 and assign the
function. (For separated converter types, the X10 signal is assigned to the terminal MRS in the initial setting.)
NOTE
• For details of high-duty brake resistor (FR-ABR), brake unit, high power factor converter (FR-HC2), power regeneration
common converter (FR-CV) connections, refer to page 71 to 77. Also, for details of each option, refer to instruction manual of
each option.
• When changed to Pr.30 = "2", inverter will reset, so "Err" is displayed on the operation panel.