4-8
IM 34M6H55-02E 1st Edition : Apr 1, 2002-00
Parameter Type
(Data Position
Number)
Description Data Range Remarks
Automatic Origin
Search Mode
(*11)
Specifies whether the
origin input is used for
automatic origin search.
0: Origin input is used.
1: Origin input is not used.
[Default: 0]
For details, refer to Section 3.5, “Origin
Search.”
Automatic Origin
Search Direction
(*12)
Sets the direction of
movement for speed 1
during automatic origin
search.
0: Negative direction
1: Positive direction
[Default: 0]
Automatic Origin
Search Speed 1
(“13/*14)
Sets the high search
speed for automatic
origin search.
1 to speed limit value
[Default: 655360 (10000 pps)]
Automatic Origin
Search Speed 2
(“15/*16)
Sets the low search
speed for automatic
origin search.
1 to automatic origin search
speed 1
[Default: 65536 (1000 pps)]
Automatic Origin
Search Starting
Speed (*17/*18)
This is the starting speed
at the beginning of, and
the speed just before
stopping at the end of,
automatic origin search.
0 to automatic origin search
speed 2
[Default: 0]
When the positioning module is used to
control a pulse motor, if this speed is set
to 0, the motor could resonate and get out
of phase in the early stage of acceleration
(or in the late stage of deceleration). Thus
this speed should be set above the
resonance frequency. Also, if this speed
is set too high, the motor undergoes
mechanical shock and could get out of
phase at starting or stopping. When the
positioning module is used to control a
servomotor, this speed is normally set to
0.
Automatic Origin
Search
Acceleration Time
(*19)
Sets the time it takes to
reach search speed 1
from the starting speed
during automatic origin
search.
0 to 32767 [ms]
[Default: 1000]
The acceleration to search speed 2 during
automatic origin search is done at the
same acceleration rate as for the
acceleration to search speed 1.
Automatic Origin
Search
Deceleration Time
(*20)
Sets the time it takes to
decelerate from search
speed 1 to a halt during
automatic origin search.
0 to 32767 [ms]
[Default: 1000]
The deceleration from search speed 2
during automatic origin search is done at
the same deceleration rate as for the
deceleration from search speed 1.
Automatic Origin
Search Z-phase
Edge Selection
(*21)
Specifies whether to use
the rising edge or the
falling edge of a Z-phase
pulse for Z-phase
detection during an
automatic origin search.
0: Rising edge
1: Falling edge
[Default: 0]
Automatic Origin
Search Z-phase
Pulse Count (*22)
Specifies how many Zphase pulses must be
detected before an origin
can be found during
automatic origin search.
0 to 32767 [pulses]
[Default: 0]
Automatic Origin
Search Z-phase
Search Range
(*23/*24)
An error occurs if a Zphase cannot be
detected within this pulse
count range during
automatic origin search.
0 to 2147483647/automatic
origin search Z-phase pulse
count [pulses]
[Default: 2147483647]
This parameter is used to prevent
continued operation when no Z-phase can
be detected because of a disconnected Z-
phase signal line, etc. This value is
usually set close to the period of the Z-
phase.
Automatic Origin
Search Deviation
Pulse clear Time
(*25)
Sets the length of time to
output the deviation
pulse clear signal when
a Z-phase (origin) is
detected in automatic
origin search.
0 to 32767 [ms]
[Default: 1000]
Automatic Origin
Search Origin
Offset (*26/*27)
Sets the desired actual
origin position when
automatic origin search
is completed.
-2147483648 to 2147483647
[pulses]
[Default: 0]
You can use this value to adjust the
position of the origin as detected in
automatic origin search if there is a
difference (offset) in position between the
detected origin and the physical origin.
The symbol
‘*’ designates the value of (axis number - 1). The values for axis 1 to axis 8 are 0 to 7 respectively.