Mitsubishi Electronics FR-A720-0.4k to 90k Marine Battery User Manual


 
242
Function assignment of external terminal and control
(2) Inverter operation ready signal (RY, RY2 signal) and inverter running signal (RUN, RUN2,
RUN3 signal)
*1 This signal turns OFF during power failure or undervoltage.
*2 Output is shutoff in conditions like a fault and when the MRS signal is ON.
CAUTION
When terminal assignment is changed using Pr. 190 to Pr. 196 (output terminal function selection), the other functions may be
affected. Set parameters after confirming the function of each terminal.
Do not assign signals which repeat frequent ON/OFF to A1, B1, C1, A2, B2, C2. Otherwise, the life of the relay contact
decreases.
Under V/F control, 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 output of the inverter running
signals (RUN, RUN2) is turned ON. During an inverter stop or
DC injection brake operation, the output is OFF.
For the RUN3 signal, output is ON while the inverter running
and the start signal is ON.
(For the RUN3 signal, output is ON if the starting command is
ON even when the inverter protective function is activated or
the MRS signal is ON.)
The output is ON during DC injection brake operation and
OFF during an inverter stop.
Inverter
Status
Output
Signal
Start
Signal is
OFF
(during
stop)
Start
Signal is
ON
(during
stop)
Start
Signal is
ON
(during
running)
Under DC
Injection
Brake
Output Shutoff
*2
Automatic Restart after
Instantaneous Power Failure
Coasting
Restarting
Start signal
is ON
Start signal
is OFF
Start signal
is ON
Start signal
is OFF
RY ON ON ON ON OFF ON *1 ON
RY2 OFF OFF OFF OFF OFF OFF OFF
RUN OFF OFF
ON OFF OFF OFF ON
RUN2 OFF OFF
ON OFF OFF OFF ON
RUN3 OFF
ON ON ON ON OFF ON OFF ON
Power
supply
Output frequency
STF
RH
RY
RUN3
Pr. 13
Starting
frequency
DC injection brake
operation point
DC injection
brake
operation
Reset
processing
Time
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
RUN
(RUN2)