Mitsubishi FX2N-10GM, Hardware / Programming Manual

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FX Series Positioning Controllers Program format 5
5-66
5.10.23 FNC92 (XAB), FNC93 (YAB): Absolute position detection
• If emergency stop input of only the servo amplifier turned on or the power of the servo amplifier
turned off while the positioning unit was operating, the servo ON input cannot enter the posi-
tioning unit and the servo amplifier is disabled even after the servo amplifier is recovered.
In such a case, when the above instructions are executed, the servo amplifier is enabled again.
FNC 92
YAB
Applicable models
Series name Remarks
Applicable
devices
and basic
format
FNC 92
XAB
FX
2N
-10GM
FX
2N
-20GM
XAB
Absolute position detection
Drive
input
FNC 93
YAB
YAB
X axis absolute
position detection.
FNC 93
XAB
Drive
input
Y axis absolute position
detection.
(Not available in the
FX
2N
-10GM.)
X ABSOLUTE
Y ABSOLUTE
ABS sensing is automatically performed
when the power is turned ON. However, this
instruction allows it to be performed at any
other time.
Each time this instruction is executed, the
present value is read from the servo amplifier
and saved in the present value register.
This instruction is only available when ABS
sensing is enabled by PARAs 50 to 52.
Applicable devices: Y, M (specified by PARA.50 and PARA.51)
16-bit operation
1 steps
•
•
•
XAB
9
FNC 90
OUT
M 0
X27
Command
M 0 M 2
FNC 90
OUT
M 1
FNC 90
OUT
M 2
M 0
FNC 92
XAB
FNC 93
XAB
M 1
Pulsed
contact
X27
M 0
T
T: Subtask operation cycle
M 1
M 2
• To allow repeated execution and yet execute this instruction
only once, a pulsed signal is required.
An example of a pulsed signal is shown below.
When the command input is X, replace it with an M.
(This establishes a direct method for controlling the input and
output when the instruction is executed.)
• This instruction is usually used in the subtask program O100.