7 Before Starting Positioning Operation
110
FX3U-20SSC-H Positioning Block User's Manual
7.9 Other functions
Cautions
• When specifying absolute addresses, set the target address within the range from 0 to the ring value.
Setting a value outside the setting range will cause an error.
• When using Multi Speed operation will absolute addresses, if the total movement magnitude exceeds 32
bits, positioning will stop without continuing operation.
• When changing the current address using the current address change function, set a current address
within the range from 0 to the ring value. Setting a value outside the setting range will cause an error.
• Set the mechanical zero point address within the range from 0 to the ring value. Setting a value outside the
setting range will cause an error.
• The software limit setting is invalid during the ring operation.
• Performing interpolation during the ring operation causes error.
7.9 Other functions
The 20SSC-H has an absolute position detection system, torque limit function, servo ON/OFF, servo check
functions and others.
The parameter setting and sequence program enable each function.
7.9.1 Servo-ready check function
The servomotor ready signal (completion of preparation) is checked during startup of operation or during
operation. With no servo ready signal, a servo-ready error occurs, stopping the operation.
→ For the parameters, control data and monitor data, refer to
Chapter 11
BFM Number
Description
X-axis Y-axis
Servo ready
check enabled/
disabled
Operation
parameter 2
BFM #14002
b1
BFM #14202
b1
Enables or disables the servo ready check function.
1(ON): Enable
0(OFF): Disable
Ready ON Servo status BFM #64 b0 BFM #164 b0 This bit is set while the servo ready is ON.
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