Mitsubishi Electric FR-D720-0.2K-G Instruction Manual page 128

(2) Drive unit operation ready (RY, RY2, RY3) signal and Drive unit running (RUN) signal
Power supply
 When the drive unit is ready to operate, the output of the Drive unit operation ready (RY) signal is ON. (It is also ON during
drive unit running.)
 When the motor rotation speed reaches 1r/min or more during the drive unit operation, the Drive unit running (RUN) signal
turns ON. During a drive unit stop, zero speed control, servo lock, or DC injection brake operation, the signal is OFF.
 The RY2 and RY3 signal turns ON when the pre-excitation starts.
The signal stays ON as long as pre-excitation is activated even if the drive unit is in a stop status. The output shutoff (MRS)
signal is OFF. (Refer to page 111.)
The RY3 signal is OFF during interlock operation with the Brake opening request (BOF) signal (refer to the descriptions of
Pr. 281 and Pr. 283 on page 112).
When using the RY, RY2, RY3 and RUN signals, assign functions to Pr. 190 or Pr. 192 (output terminal selection function)

referring to the table below.
Output Pr. 190, Pr. 192 Setting
Positive Logic
Signal
RY
11
RY2 33
RY3
37
RUN
0
Drive Unit
Status
During Stop
Output Signal

RY ON
RY2
OFF
RY3
OFF
RUN
OFF

There is a 100ms time delay at ON.

Output is shutoff in conditions like a fault and when the MRS signal is ON.

The signal is OFF while the main circuit power supply is OFF.
REMARKS
 The RUN signal (positive logic) is assigned to the terminal RUN in the initial setting.
 When the start command (STF, STR) is turned ON during PM motor control, the RUN signal is output after Pr. 736
Electromagnetic brake interlock time plus about 100ms. This delay is caused by the electromagnetic brake interlock and magnetic
pole detection. (Refer to page 113.)
Function assignment of external terminal and control
STF
RH
Pr. 281
Reset Initial magnetic pole detection
processing
RY
RY2
RY3
RUN
Negative Logic
111
133
137
100
During LX signal ON
Operation (pre-excitation)
ON
ON  ON 
ON 
ON
ON OFF
Pr. 11
Pr. 283
(approx. 100ms)
Under DC
Injection Brake
(pre-excitation)
ON ON
ON
ON
OFF
Time
During
Interlock Output Shut-

Operation with off
Pr. 281 and Pr. 283
ON OFF
ON OFF
OFF OFF
OFF OFF
4
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