52
0 Outside zone
1 Inside zone
08
n+5
07 06
Zone 0 flag
Zone 1 flag
Zone 2 flag
3–7–2 Backlash Compensation
There may be a certain amount of mechanical play present in gears, that will
affect positioning accuracy when the direction of positioning actions changes.
You can compensate for this by using backlash compensation.
There is only one parameter that needs to be set to compensate for back-
lash:
Backlash Compensation
DM m+4
Set to between 0000 and 9999 pulses.
ÍÍÍÍÍÍÍÍÍÍÍ
ÍÍÍÍÍÍÍÍÍÍÍ
ÍÍÍÍÍÍÍÍÍÍÍ
ÍÍÍÍÍÍÍÍÍÍÍ
ÍÍÍÍÍÍÍÍÍÍÍ
Backlash
When the feeding direction is reversed, the number of pulses set in the DM
area is output at the initial speed, and the Position Control Unit then pro-
ceeds with normal operations.
Time
Compensation
If STOP is executed during backlash compensation for any operations requir-
ing acceleration or deceleration (HIGH-SPEED JOG, ORIGIN SEARCH,
ORIGIN RETURN, and START), the Position Control Unit will stop feeding
immediately after outputting the initial step of the acceleration or decelera-
tion, which will include the backlash compensation set above.
Setting Parameters
Using Backlash
Compensation
DM Area Allocation Section 3–7
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