Mitsubishi Electric FR-A820-00046 Instruction Manual page 587

Parameters
● According to the inverter condition, the ON/OFF operation of each signal is as shown below.
Output
signal
RY
RY2
RUN
RUN2
RUN3
Tab. 5-145: Output signal output
OFF during power failure or undervoltage.
Output is shutoff in conditions like a fault and when the MRS signal is ON.
OFF while power is not supplied to the main circuit power supply.
● Operation under Real sensorless vector control, vector control and PM sensorless vector control
Fig. 5-170:
– When the inverter is ready for operation, the Inverter operation ready (RY) signal turns ON.
(stays ON during operation.)
– When the inverter output frequency reaches Pr. 13 "Starting frequency" or higher, the output
of Inverter running (RUN) turns ON. The signal is OFF while the inverter is stopped, the DC
injection brake is operating, during tuning at start-up, or during pre-excitation.
– The Inverter running 2 (RUN2) signal is ON while the inverter is running or the start signal is
ON. (When the inverter's protective function is activated or the MRS is ON, the RUN2 signal
turns OFF.)
– The Inverter running and start command is ON (RUN3) signal output is ON while the inverter
is running or the start signal is ON.
FR-A800
Start Start
Start
signal OFF signal ON
signal ON
(during (during
(running)
stop) stop)
ON ON ON
OFF OFF OFF
OFF OFF ON
OFF OFF ON
OFF ON ON
Power
supply
STF
RH
MRS
Pre-excitation
(0 speed control)
processing
RY
RY2
RUN
RUN2
RUN3
Ready and motor running signals
(M) Monitor display and monitor output signal
DC
Output shutoff
injection
brake
operation
Start
signal ON
ON OFF
OFF OFF
OFF OFF
OFF OFF
ON ON
ON
ON
ON
Pr. 13
Reset
ON
ON
ON
ON
ON
Automatic restart after
instantaneous power failure
Coasting
Start Start Start
signal OFF signal ON signal OFF
ON
OFF
OFF
OFF
OFF ON OFF
OFF
OFF
ON
Time
OFF
OFF
OFF
OFF
OFF
Restart-
ing
ON
OFF
ON
ON
ON
I002622E
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