Mitsubishi Electric MELSEC iQ-F Series User Manual page 23

Positioning control
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Operand specification
■When FX5 operand is specified or the DDSZR instruction is used
(1)
For (s1), specify the OPR speed. Set to a value 1 pps to 200 Kpps in pulse.
DSZR
: 1 to 65535 (User system unit)
DDSZR
: 1 to 2147483647 (User system unit)
(2)
For (s2), specify the creep speed. Set to a value 1 pps to 200 Kpps in pulse.
DSZR
: 1 to 65535 (User system unit)
DDSZR
: 1 to 2147483647 (User system unit)
(3)
For (d1), specify an axis number (K1 to K4) for which OPR is executed.
Specify an axis number whose positioning parameters are set in the high speed I/O parameters. Operation cannot be
performed if any other axis number is specified.
(4)
For (d2), specify the bit devices of the instruction execution complete flag and abnormal end flag. (Page 62
Complete flag)
(d2)
: Instruction execution complete flag
(d2)+1
: Instruction execution abnormal end flag
■When the FX3 compatible operand is specified
(1)
For (s1), specify the near-point dog signal input device number.
When an input device (X) is used, only the device that is specified with the high speed I/O parameter can be specified.
The logic set with the high speed I/O parameter is applied. Bit devices can be specified, in addition to input devices (X).
In that case, the relay operates on a rising edge.
(2)
For (s2), specify the zero signal input device number.
When an input device (X) is used, only the device that is specified with the high speed I/O parameter can be specified.
(Page 39 Pulse Output Mode) The logic set with the high speed I/O parameter is applied. Bit devices can be
specified, in addition to input devices (X). In that case, the relay operates on a rising edge.
(3)
For (d1), specify the pulse output number in the range of Y0 to Y3.
Specify an output device (Y) number (equivalent to the axes 1 to 4) set in the high speed I/O parameters. Operation
cannot be performed if any other axis number is specified.
(4)
For (d2), specify the rotation direction signal output device number. (Page 40 Rotation Direction Setting)
When an output device (Y) is used, only the device that is specified with the positioning parameter or a general-
purpose output can be specified. However, if an output device (Y) to which PWM or CW/CCW axis is assigned is
specified, an error occurs without any operation.
For the PWM function, refer to User's manual (Application).
OPR direction
The pulse output direction is determined by the OPR direction and rotation direction setting. The following table lists
operations performed when the origin return direction and rotation direction setting are used in combination. (Page 40
Rotation Direction Setting)
OPR
Positive Direction (Address Increment Direction)
Direction
Negative Direction (Address Decrement Direction)
Operand change in positioning operation
During positioning operation for the OPR speed (s1) and creep speed (s2), the command speed can be changed before the
zero signal is detected. If it is changed after the zero signal is detected, the change is applied when the DSZR/DDSZR
instruction is next driven again.
Rotation Direction Setting
Current Value Increment with
Forward Run Pulse Output
Output direction: Forward
Address: Increment
Output direction: Reverse
Address: Decrement
Current Value Increment with
Reverse Run Pulse Output
Output direction: Reverse
Address: Increment
Output direction: Forward
Address: Decrement
5 POSITIONING INSTRUCTION
5.3 Mechanical OPR
5
75

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