Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

Page: 588 / 1218

(M) Monitor display and monitor output signal Parameters
5 - 386
– The RUN2 and RUN3 signals also are ON when the start command is ON and when pre-
excitation is operating with the speed command = 0. (However, the RUN2 signal is OFF during
pre-excitation operation activated by LX signal ON.)
– The Operation ready 2 (RY2) signal turns ON when the pre-excitation starts. It stays ON while
pre-excitation is operating even when the inverter is stopped.
●
According to the inverter condition, the ON/OFF operation of each signal is as shown below.
When the start signal is ON and the frequency command is 0 Hz, pre-excitation is entered.
Turns OFF during power failure or undervoltage.
A delay of 100 ms (500 ms for FR-A820-03800(75K) or higher, FR-A840-02160(75K) or higher) occurs
when turned ON.
Turns ON while the servo is ON (LX signal ON) under position control.
$
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.
NOTE When pre-excitation is activated by the pre-excitation signal (LX), the RY2 signal turns ON 100 ms
(500 ms for FR-A820-03800(75K) or higher, FR-A840-02160(75K) or higher) after the LX signal turns
ON. (When online auto tuning at start-up (Pr. 95 = "1") is selected, the ON timing is delayed by the
tuning time.)
Output
signal
Start
signal
OFF
(during
stop)
Start
signal
ON
(pre-
excita-
tion)
Start
signal
ON
(run-
ning)
LX
signal
ON
(pre-
excita-
tion)
DC injec-
tion brake
operating
(pre-
excitation)
Output shutoff
$
Automatic restart after
instantaneous power failure
Coasting
Restart-
ing
Start
signal
ON
Start
signal
OFF
Start
signal
ON
Start
signal
OFF
RY
%
ON ON ON ON ON OFF
ON
ON
RY2 OFF ON ON ON ON OFF OFF OFF
RUN OFF OFF ON
OFF
OFF OFF OFF ON
RUN2 OFF ON ON
OFF
OFF OFF OFF ON
RUN3 OFF ON ON ON ON ON OFF ON OFF ON
Tab. 5-146: Output signal output
LX
RY2 ON
ON
100 (500) ms