Mitsubishi Electric Melsec-F FX3GC Series User Manual page 138

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Built-in Positioning Functions
9
Check the operation of the forward rotation limit switch.
During operation in the forward rotation direction (at step 8), turn off the forward rotation limit switch
1 (X010), and confirm that the operation in the forward rotation direction is stopped.
The LED indicator lamps and the current value register (D8341, D8340) will change to the same
statuses as the stop statuses described in step 8.
In addition, the "Instruction execution abnormal end" flag (M8329) will turn on.
10
Check the operation in the reverse rotation direction.
Check the output indicator lamp (LED lamp) and the current value register to monitor the operation.
The status of the LED indicator lamp and the value indicated in the current value register depend
on the pulse output destination or rotation direction set by the positioning instruction. However, if
the pulse output destination or the rotation direction is changed for the test program, carefully read
the status of the output indicator lamp (LED lamp) and the value indicated in the current value
register to monitor the change.
1. Operation in reverse rotation direction
Turn on the reverse rotation (JOG-) switch (X013), and verify that the operation is performed in the
reverse rotation direction. For this check, set the other inputs as follows:
Input signal
X010
X011
X012
1) LED indicator lamp check
Check the LED indicator lamps of the PLC or the display module to check whether the outputs are turned
on. The status of each output should be as shown in the following table:
If the transistor outputs of
the main unit are used
If the high-speed output
special adapter is used
*1. The output LED is kept ON in the FX
2) Current value register (D8341, D8340) check
Monitor the current value register (D8341, D8340) of the FX
programming tool, and confirm that the value is being reduced.
B - 94
PLC User's Manual - Positioning Control Edition
For details on the current value register, refer to Subsection 4.4.1.
Status
ON
ON
OFF
Pulse output
method
"Pulse train + direc-
tion" method
"Pulse train + direc-
tion" method
Forward rotation
pulse train (FP)
Reverse rotation
pulse train (RP)
3U
For details on the current value register, refer to Subsection 4.4.1.
LED lamp
of output
Y000
Y004
Y0/2
Y4/6
Y0/2
Y4/6
PLC.
/FX
3S
5 Operation Test
5.1 Test Procedure
Status of LED lamp (output)
Turned on and off at high speed.
Kept OFF.
Turned on and off at high speed.
Kept OFF.
Kept OFF.
Turned on and off at high speed.
/FX /FX /FX PLC using the
3G 3GC 3U 3UC
*1