Mitsubishi Electric 800 Series Instruction Manual page 377

(M) Monitor display and monitor output signal
 Operation under Real sensorless vector control, vector control and PM
sensorless vector control
Power
ON
supply
ON
STF
RH
MRS
Pre-excitation
(zero speed control)
Reset
processing
ON
RY
RY2
RUN
ON
RUN2
ON
RUN3
NOTE
• When pre-excitation is activated by the pre-excitation signal (LX), the RY2 signal turns ON 100 ms (500 ms for FR-A860-
01440 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.)
LX
100(500)ms
RY2
• According to the inverter condition, the ON/OFF operation of each signal is as shown below.
Start Start
signal signal
Output
OFF ON
signal
(during (pre-
stop) excitation)
RY ON ON

RY2 OFF ON
RUN OFF OFF
RUN2 OFF ON
RUN3 OFF ON

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-A860-01440 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.
376
PARAMETERS
OFF
OFF
ON
ON
Pr. 13
Time
OFF
ON
OFF
ON OFF
OFF
OFF
ON
ON
Start LX
signal signal ON

ON (pre-
(running) excitation)
ON ON
ON ON

ON OFF

ON OFF

ON ON
• When the inverter is ready for operation, the Inverter operation
ready (RY) signal turns ON (and stays ON during operation).
• When the inverter output frequency reaches Pr.13 Starting
frequency or higher, the output of Inverter running (RUN) turns
ON. The signal is OFF while the inverter is stopped, the DC
injection brake is operating, during tuning at start-up, or during
pre-excitation.
• The Inverter running 2 (RUN2) signal is ON while the inverter is
running or the start signal is ON. (When the inverter's protective
function is activated or the MRS is ON, the RUN2 signal turns
OFF.)
• The Inverter running and start command is ON (RUN3) signal
output is ON while the inverter is running or the start signal is
ON.
• 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.
DC injection
Output shutoff
brake
operating
Start
(pre-
signal signal
excitation)
ON
ON OFF
ON OFF
OFF OFF
OFF OFF
ON ON OFF
Automatic restart after
instantaneous power failure

Coasting
Start Start Start
signal signal
OFF ON OFF
ON

OFF
OFF
OFF
ON OFF
Restarting
ON
ON
ON
ON
ON