Mitsubishi Electric FR-A820-00046 Instruction Manual page 701

Parameters
● 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 alarm details, refer to page 6-10.)
Fault record
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)
Tab. 5-207: Fault record at Pr. 248 = "2"
● 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 manage-
ment 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
(on the converter unit side)
OFF
OFF
ON
ON
Tab. 5-208: Signals Y17 and MC1 for self power management function with separated converter type
● 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.
FR-A800
MC1 output signal
(inverter side)
OFF
ON
OFF
ON
(A) Application parameters
MC1 output signal actual
operation
OFF
OFF
OFF
ON
Main circuit power supply
Stop
Stop
Stop
Supplied
5 - 499