Mitsubishi Electric FR-A700 EC, Instruction Manual

Page: 484 / 826

Function assignment of external terminals Parameter
6 - 304
Inverter operation ready signal (RY, RY2 signal) and inverter running signal (RUN, RUN2,
RUN3 signal) under real sensor less vector control and vector control
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 inverter output frequency rises to or above the Pr. 13 "Starting frequency setting", the
output of the inverter running signal (RUN) is turned on. During an inverter stop, DC injection
brake operation, start time tuning or pre-excitation, the output is off.
For the RUN2 signal, the output is on while the inverter is running and the start signal is on. (For
the RUN2 signal, the output is off when the inverter protective function is activated and the MRS
signal is on.)
For the RUN3 signal, the output is on while the inverter is running and the start signal is on.
The RUN2 and RUN3 signals are on when the start command is on and even during pre-exci-
tation with "0" set in speed command. (Note that the RUN2 signal turns off during preexcitation
by turning the LX signal on.)
The RY2 signal turns on at the start of pre-excitation. The signal is on while pre-excitation is acti-
vated even during an inverter stop. The signal turns off while the output is shut off (MRS signal).
NOTE For pre-excitation by pre-excitation signal (LX), the RY2 signal turns on when 100ms has
elapsed after LX signal turn on (500ms for the 02160 or more).
I001591E
Fig. 6-132: Ready and motor running signals
ON
ON
Power supply
STF
RH
MRS
Output frequency
Starting
frequency Pr. 13
Time
RY
RY2
RUN
(RUN2)
RUN3
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
Reset
processing
Pre-excitation
(0 speed control)
ON
ON
ON
OFF
OFF