125
Function assignment of external terminal and control
(2) Drive unit operation ready (RY, RY2, RY3) signal and Drive unit running (RUN) signal
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. (
.)
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
).
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
Signal
Pr. 190, Pr. 192
Setting
Positive Logic
Negative Logic
RY
11
111
RY2
33
133
RY3
37
137
RUN
0
100
Drive Unit
Status
During Stop
During
Operation
LX signal ON
(pre-excitation)
Under DC
Injection Brake
(pre-excitation)
During
Interlock
Operation with
Pr. 281
and
Pr. 283
Output Shut-
off
Output Signal
RY
ON
ON
ON
ON
ON
OFF
RY2
OFF
ON
ON
ON
ON
OFF
RY3
OFF
ON
ON
ON
OFF
OFF
RUN
OFF
ON
OFF
OFF
OFF
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.
Time
Power supply
Rotation speed
STF
RH
RY
RY2
Pr. 11
RUN
RY3
Pr. 283
Pr. 281
Initial magnetic pole detection
(approx. 100ms)
Reset
processing
Summary of Contents for FR-D720-0.2K-G
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