Mitsubishi Electric FR-D720 K Series Instruction Manual page 128

Function assignment of external terminal and control
(2) Inverter operation ready signal (RY signal) and inverter running signal (RUN signal)
Power supply
STF
RH
RY
RUN
 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 signal
(RUN) is turned ON. During an inverter stop or DC injection brake operation, the output is OFF.
When using the RY and RUN signals, assign functions to Pr.190, Pr.192 or Pr.197 (output terminal selection function) referring

to the table below.
Output Pr. 190, Pr. 192, Pr. 197 Setting
Positive logic
Signal
RY
11
RUN
0
Inverter
Start
Status
Signal
OFF
Output
(during
signal
stop)
RY ON
RUN OFF

This signal turns OFF during power failure or undervoltage.

Output is shutoff under conditions such as a fault occurrence, MRS signal ON, and the safety stop operation.

OFF while power is not supplied to the main circuit power supply.
REMARKS
 The RUN signal (positive logic) is assigned to the terminal RUN in the initial setting.
124
ON
ON
Pr. 13 Starting frequency
Reset processing
ON
Negative logic
111
100
Start Start
Signal ON Signal ON
(during (during Injection Brake
stop) operation)
ON ON
OFF ON
OFF
ON
DC injection brake operation point
ON OFF
Under DC
Output shutoff
ON OFF
OFF OFF
OFF
DC injection brake operation
Time
OFF
Automatic Restart after
Instantaneous Power Failure
Coasting

Start Start
signal signal
ON OFF
ON
OFF
Restarting
ON
ON