Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 541

• When the protective function of the inverter is activated, the MC1 signal is immediately turned OFF according to the Pr.248
setting. (The MC1 signal is turned OFF before the time set in Pr.254 has passed.)
When Pr.248 ="1", the MC1 signal is turned OFF when the protective function is activated due to any cause.
When Pr.248 ="2", the MC1 signal is turned OFF only when the protective function is activated due to an error resulted
from a failure in the inverter circuit or a wiring error (refer to the following table). (For the fault details, refer to
Inrush current limit circuit fault (E.IOH)
CPU fault (E.CPU)
CPU fault (E.6)
CPU fault (E.7)
Parameter storage device fault (E.PE)
Parameter storage device fault (E.PE2)
24 VDC power fault (E.P24)
Operation panel power supply short circuit/RS-485 terminals 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)
• To enable the self power management function for the separated converter type, enable the self power management
function also on the converter unit side. To activate the self power management function when a converter unit fault occurs,
connect the terminal to which Y17 signal of the converter unit is assigned and the terminal to which X94 signal of the
inverter is assigned.
Y17 output signal
(converter unit)
OFF
OFF
ON
ON
• To use the X94 signal, set "94" in any of Pr.178 to Pr.189 (Input terminal function selection) to assign the function to
an input terminal.
540
5. PARAMETERS
5.14 (A) Application parameters
Fault type
MC1 output signal
(inverter)
OFF
ON
OFF
ON
MC1 output signal actual
operation
OFF
OFF
OFF
ON
page 745.)
Main circuit power supply
Stop
Stop
Stop
Supplied