Mitsubishi Electric 800 Series Instruction Manual page 23

 Confirming the 24 V external power supply input
• The "24V DC" LED on the front cover for plug-in option is ON while the 24 V external power is supplied. When the main
circuit power is turned OFF and the 24 V external power supply operation starts, "EV" blinks on the operation panel.
Blinking
• During the 24 V external power supply operation, the 24 V external power supply operation (EV) signal is output. To use the
EV signal, set "68 (positive logic)" or "168 (negative logic)" in any parameter from Pr.190 to Pr.196 (Output terminal
function selection) to assign the function to the output terminal.
 Operation while the 24 V external power is supplied
• The operation stops when the power supply changes to the 24 V external power supply from the main circuit power supply
regardless of the operating status (in a stop, in running, in automatic restart after instantaneous power failure, in offline
tuning, in main circuit capacitor life measurement).
• Fault records and parameters can be read and parameters can be written (when the parameter write is enabled).
• The safety stop function is also valid while the 24 V external power is supplied. When the safety stop function is active,
however, "SA" is not displayed because "EV" is displayed. The "EV" display has priority over the "SA" display.
• While the 24 V external power is supplied, monitoring function and signals related to the main circuit power supply are not
available. (For details, refer to the FR-E800 Instruction Manual (Function).)
• The alarms, which have occurred when the main circuit power supply is ON, continue to be output after the power supply is
changed to the 24 V external power supply. Perform the inverter reset or turn OFF then ON the power to reset the faults.
• The retry function is invalid for all faults while the 24 V external power is supplied.
• If the power supply changes from the main circuit power supply to the 24 V external power supply while measuring the main
circuit capacitor's life, the measurement completes after the power supply changes back to the main circuit power supply
(Pr.259 = "3").
ON
CONNECTING THE 24 V EXTERNAL POWER SUPPLY
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