7 Before Starting Positioning Operation
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FX
3U
-20SSC-H Positioning Block User's Manual
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Int
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Exam
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Ins
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Table O
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7.1 Note on Setting Parameters
7.1.6
Initializing parameters [sequence program]
This subsection explains how to initialize positioning parameters and servo parameters of the 20SSC-H using
a sequence program.
→
For direct specification of the buffer memory using the FROM/TO instruction and applied
instructions, refer to Section 12.1 and the PROGRAMMING MANUAL
Caution when the version is earlier than Ver. 1.10
Use FX Configurator-FP when initializing servo parameters.
When initializing servo parameters using a sequence program, initialize servo parameters stored in the buffer
memory in the following status, save servo parameters to the flash memory, and then turn OFF and ON again
the power of the servo amplifier and PLC (including the 20SSC-H).
→
For the method to save parameters stored in the buffer memory to the flash memory,
refer to Subsection 7.1.9
• Status in which the power of the servo amplifier is OFF
• Status in which the servo amplifier is not connected to the 20SSC-H
Before turning ON the power of the PLC (including the 20SSC-H) again, connect the servo amplifier to the
20SSC-H.
1) Enable (make valid) control commands.
→
For control command enable/disable, refer to Subsection 11.4.14
2) Set to ON from OFF the positioning parameter initialization command and servo parameter initialization
command.
Initialize positioning parameters and servo parameters stored in the buffer memory.
(These initialization commands do not initialize the positioning parameters and servo parameters stored
in the flash memory.)
→
For the Control command, refer to Subsection 11.4.15
3) When initialization of positioning parameters and servo parameters stored in the buffer memory is
completed, the "initializing buffer memory" flag changes from ON to OFF.
→
For the Status information, refer to Subsection 11.3.17
4) Change positioning parameters and servo parameters stored in the buffer memory as necessary.
→
For the method to set the parameters using a sequence program,
refer to Subsection 7.1.4 or 7.1.5
BFM Number
Description
X-axis
Y-axis
Control command enable/disable
BFM #522
Write K5220 using a sequence program.
BFM Number
Description
X-axis
Y-axis
Control
command
Positioning parameters
initialization command
BFM #523
b8
BFM #523
b9
Set these bits to ON from OFF using a sequence program.
Servo parameters
initialization command
BFM #523
b13
BFM #523
b14
Set these bits to ON from OFF using a sequence program.
BFM Number
Description
X-axis
Y-axis
Status
information
Initializing buffer memory
BFM #28 b12
This bit remains ON while the data stored in the buffer
memory is initialized.
It turns OFF when initialization is finished.