3.2 Operating Procedures for Utility Functions
3.2.3 Origin Search (Fn003)
3-13
3.2.3
Origin Search (Fn003)
You can use this utility function to operate the motor with the keys on
the Digital Operator, move the motor to the origin within one rotation,
and clamp the motor there.
Use an origin search when it is necessary to align the origin within one
rotation with the machine origin. The following motor speeds are used.
• Rotary Servomotors: 60 min
-1
• Direct Drive Servomotors: 6 min
-1
• Linear Servomotors: 15 mm/s
Note: 1. Make sure the load is not coupled when you execute an origin search.
2. The POT (Forward Drive Prohibit) input signal and N-OT (Reverse Drive Pro-
hibit) input signal are disabled during an origin search.
Preparations
Always check the following before you execute an origin search.
• The parameters must not be write-prohibited (Fn010 must be set to
0000).
• The servo must be OFF.
• The servo must be in ready status.
Operating Procedure
The following procedure shows how to operate the motor in the forward
direction and stop at the origin within one rotation.
Step Operation Result
1
Press the Key to display the
Utility Mode Main Menu, and then
use the Key or Key to
select Fn003.
2
Press the Key.
The Fn003 (Origin Search) execu-
tion display will appear.
Continued on next page.
1:BB
FUNCTION
Fn002:JOG
Fn003 :Z-S earch
Fn004:Program JOG
Fn005:Prm Init
Un000=0 00000
Un002=0 00000
Un003 = 0 0000000774
Un00D=0 0000000000
1:BB Z-S earch
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