Mitsubishi Electric FR-A820-00046 Instruction Manual page 552

(M) Monitor display and monitor output signal
Input MC shutoff signal (Y91)
● The Fault output 3 (Y91) signal is output when a fault originating in the inverter circuit or a
connection fault occurs.
● To use the Y91 signal, set "91 (positive logic) or 191 (negative logic)" in any of Pr. 190 to Pr. 196
(output terminal function selection) to assign the function to the output terminal.
● The following table shows the faults that output the Y91 signal. (For the fault details, refer to page
6-9.)
Fault record
Inrush current limit circuit fault (E.IOH)
CPU fault (E.CPU)
CPU fault (E.5)
CPU fault (E.6)
CPU fault (E.7)
Parameter storage device fault (E.PE)
Parameter storage device fault (E.PE2)
24 V DC power fault (E.P24)
Operation panel power supply short circuit
RS-485 terminal power supply short circuit (E.CTE)
Output side earth (ground) fault overcurrent (E.GF)
Output phase loss (E.LF)
Brake transistor alarm detection (E.BE)
Internal circuit fault(E.13/E.PBT)
Tab. 5-144: Faults that lead to Y91 signal output
Parameters referred to
Pr. 13
Pr. 76
5 - 372
Starting frequency
Fault code output selection
Parameters
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