16 POSITIONING INSTRUCTION
16.2 Positioning Module
885
16
Precautions
• If the positioning is started by using the GP.PSTRT
instruction, the [Cd.184] Positioning start signal will not turn on. In this
case, although the start completion signals ([Md.31] Status: b14) turn on, the ON time is short; the program may fail to
detect the ON state. For this reason, start completion cannot be checked using the start completion signals ([Md.31] Status:
b14). Check the positioning control status with the start command of the GP.PSTRT
instruction or the [Md.141] BUSY
signal.
• If the positioning is started by using the GP.PSTRT
instruction, and then the stop command is input before the positioning
completes, the completion device (d) turns on for one scan and the execution of the GP.PSTRT
instruction completes.
• The following instructions cannot be executed simultaneously to a single axis. For different axes, any of the following can
be executed concurrently with a GP.PSTRT
instruction.
• The GP.PSTRT
instruction can be executed when the READY signal ([Md.140] module status: b0) is ON. While the
READY signal ([Md.140] module status: b0) is OFF, if the GP.PSTRT
instruction is executed, "PLC READY OFF start
(Error code: 19A1H)" error occurs and positioning cannot be started. Turn the "[Cd.190] PLC READY signal" ON, and turn
the READY signal ([Md.140] module status: b0) ON before executing the GP.PSTRT
instruction.
• If multiple axes concurrent start is executed using the GP.PSTRT
instruction, the completion device (d) turns on when the
positioning completes for the axis where the GP.PSTRT
instruction has been executed (e.g. Axis 1 for GP.PSTRT1).
• If the GP.PSTRT
instruction is used, the starting time will delay 0 to 0.88ms relative to the [Cd.184] Positioning start
signal.
• If this instruction is executed in an interrupt program with the priority 1, operation error (3580H) occurs. This instruction
operates in an interrupt program with the priority 2 or 3.
Operation error
• Positioning start instruction (GP.PSTRT
)
• Absolute position restoration instruction (G.ABRST
)
• Teaching instruction (GP.TEACH
)
Error code
((s)+1)
Description
1862H
A value other than 1 to 600, 7000 to 7004, or 9001 to 9004 was set in "Starting number" of (s)+2.
1865H
An instruction was specified for an undefined axis.
19A1H
Start positioning when the "[Cd.190] PLC READY signal" is OFF.
Summary of Contents for MELSEC iQ-F FX5
Page 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
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Page 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Page 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
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