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PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
13 Troubleshooting
13.1 LED Indicator Lamp Check
B - 174
2. If the high-speed output special adapter (FX
3U-2HSY-ADP) is used for positioning
Status of pulse
output method
setting switch
Signal
LED status during
execution of
positioning
instruction
Description
PLS•DIR side
"Pulse output
destination device"
(pulse train)
Turned on and off
at high speed
The pulse outputting operation is controlled by the
positioning instruction.
OFF
The PLC may exhibit the following status:
1) The operation of the positioning instruction is
completed.
2) An operation error occurred during positioning.
The instruction, therefore, is not being executed.
To check the error, refer to the following section:
→ Refer to Subsection 13.2.1 "Error Code
Check Method".
"Rotation direction
output" (direction)
ON Forward operation is in execution.
OFF
The PLC may exhibit the following status:
1) The positioning instruction turns ON, and operation
is being performed in the reverse rotation direction.
2) An operation error occurred during positioning
instruction. The instruction, therefore, is not being
executed.
To check the error, refer to the following section:
→ Refer to Subsection 13.2.1 "Error Code
Check Method".
FP/RP side
"Pulse output
destination device"
(Forward pulse train)
Turned on and off
at high speed
Forward operation is being executed for a positioning
instruction. Reverse pulse train is OFF.
OFF
The PLC may exhibit the following status:
1) The positioning instruction turns ON, and operation
is being performed in the reverse rotation direction.
2) An operation error occurred during positioning .
The instruction, therefore, is not being executed.
To check the error, refer to the following section:
→ Refer to Subsection 13.2.1 "Error Code
Check Method".
"Rotation direction
output" (Reverse
pulse train)
Turned on and off
at high speed
Reverse operation is being executed for a positioning
instruction. Forward pulse train is OFF.
OFF
The PLC may exhibit the following status:
1) The positioning instruction turns ON, and operation
is being performed in the forward rotation direction.
2) An operation error occurred during positioning. The
instruction, the4refore, is not being executed.
To check the error, refer to the following section:
→ Refer to Subsection 13.2.1 "Error Code
Check Method".