Mitsubishi Electric FR-A700 Instruction Manual page 483

Frequency inverter
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Parameter
Inverter operation ready signal (RY, RY2 signal) and inverter running signal (RUN, RUN2,
RUN3 signal) under V/f control and advanced magnetic flux vector control
When the inverter is ready to operate, the output of the operation ready signal (RY) is on. It is
also on during inverter running.
When the output frequency of the inverter rises to or above Pr. 13 "Starting frequency", the out-
put of the inverter running signal (RUN) is turned on. During an inverter stop or DC injection
brake operation, the output is off.
The output of the RUN3 signal is on when the inverter running and start signals are on. (For the
RUN3 signal, output is on if the starting command is on even when the inverter protective func-
tion is activated or the MRS signal is on.)
The output is on during DC injection brake operation and off during an inverter stop.
Fig. 6-131: Ready and motor running signals
Output
Signal
RY
RY2
RUN
RUN2
RUN3
Tab. 6-87: Output signal output
This signal turns OFF during power failure or undervoltage.
FR-A700 EC
Power supply
STF
RH
Starting
frequency Pr. 13
Reset
processing
RY
RUN (RUN2)
RUN3
Start
Start
Start
Signal
Signal
Signal
ON
OFF
ON
(during
(during
(during
opera-
stop)
stop)
tion)
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
ON
Function assignment of external terminals
DC injection brake operation point
At Alarm Occur-
rence or MRS Signal
Under
ON (output shutoff)
DC Injec-
tion
Start
Start
Brake
Signal is
signal is
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
AUS
DC injection brake operation
Time
Automatic Restart after Instan-
taneous Power Failure
Coasting
Restart-
Start-
Start-
signal
signal
EIN
AUS
ON
OFF
OFF
OFF
ON
OFF
I001152E
ing
ON
OFF
ON
ON
ON
6 - 303

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