Mitsubishi Electric 800 Series Instruction Manual (Function page 339
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• The Operation ready 2 (RY2) signal turns ON when the pre-excitation starts. The signal is ON during pre-excitation even
while the inverter is stopped. The signal is OFF during the inverter output shutoff.
Power
ON
supply
STF
RH
MRS
Pre-excitation
(zero speed control)
Reset
processing
RY
RY2
RUN
RUN2
RUN3
NOTE
• When pre-excitation works with the Pre-excitation (LX) signal ON, the RY2 signal turns ON after 100 ms from the time the LX
signal turns ON. (When online auto tuning at start-up is selected (Pr.95 = "1"), the time the signal turns ON is delayed by the
tuning time.)
LX
RY2
• The ON/OFF state of each signal according to the inverter operating status is shown in the matrix below.
Start
signal
Output
OFF
signal
(inverter
stopped)
*6
ON
RY
RY2
OFF
RUN
OFF
RUN2
OFF
RUN3
OFF
*1
When the start signal is ON and the frequency command is 0 Hz, such state is designated as "during zero speed control".
*2
The signal is OFF during power failure or undervoltage.
*3
The signal turns ON after 100 ms from the time the LX signal turns ON.
*4
The signal is ON while the servo-lock function is ON (the LX signal is ON) in the position control mode.
*5
This means the state during a fault occurrence or while the MRS signal is ON, etc.
*6
The signal is OFF while power is not supplied to the main circuit.
338
13. (M) Item and Output Signal for Monitoring
13.6 Output terminal function selection
ON
ON
ON
Pr. 13
ON
OFF
OFF
OFF
ON
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
ON
100 ms
ON
Start
Start signal
LX signal
signal
*1
ON
(durin
ON (during
ON
g pre-
(inverter
excitation)
excitation)
running)
ON
ON
ON
*3
ON
ON
ON
OFF
ON
OFF
ON
ON
OFF
ON
ON
ON
OFF
OFF
Time
During DC
Inverter output
injection
brake
pre-
operation
Start
(during pre-
signal
excitation)
ON
ON
OFF
ON
OFF
*4
OFF
OFF
*4
OFF
OFF
ON
ON
Automatic restart after
instantaneous power failure
*5
shutoff
During coasting
Start
Start
signal
signal
OFF
ON
*2
ON
OFF
OFF
OFF
OFF
ON
OFF
Inverter
running
Start
after
signal
restart
OFF
ON
ON
ON
ON
ON
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