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4.2.2 Description of Each Parameter
PA1_02 INC/ABS system selection
No.
Name
INC/ABS selection 0: Incremental system 1:Absolute system
02
Select either the relative position (incremental) system or absolute position system.
Reference
Function
value
Relative position
0
(incremental) system
Absolute position
1
system
Non-overflow absolute
2
system (not detect the
multi-turn overflow)
To establish an absolute position system, set this parameter at "1" or "2." In addition, install the
optional absolute backup battery.
Because a multi-rotation data loss alarm (dL1 alarm) is detected when the power is turned on,
perform position presetting to remove the alarm and start operation.
To use in an absolute position system, refer to "CHAPTER 11 ABSOLUTE POSITION
SYSTEM."
Setting range
2: Non-overflow absolute system
The current position is lost after the control power is turned
off. Homing must be performed again.
The current position is stored in memory even after the
control power is turned off. Homing is unnecessary. You
can operate in the limited range. If the operation range is
exceeded, an alarm and stoppage are caused.
(Operation range: between -32767 and +32766 revolutions
of motor shaft)
The current position is stored in memory even after the
control power is turned off. Homing is unnecessary.
Because there is no limit in the operation range, this
system is best for the control of the rotating body. (The
multi-turn data over flow alarm is not detected.)
Multi-rotation data should be processed at the host
controller suitably.
Refer to "■ Precaution when setting ABS, endless ABS"
and "■ Precautions when setting endless ABS for LS
type".
CHAPTER 4 PARAMETER
Default
value
0
Description
Basic Parameters
Change
Power
4
4-5
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