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Chapter 12 Application Examples |ASDA-AB Series
Revision January 2009 12-31
A=2: Forward homing and ORGP (Reference “Home” sensor) is regarded as a reference “Home”. At this
time, users can set B=0, i.e. return to find Z-phase pulse during homing and regard Z-phase pulse as a
precise mechanical “Home” or set B=1, i.e. do not return and go forward to find Z-phase pulse and
regard Z-phase pulse as a precise mechanical “Home”. If users do not use Z-phase pulse as
mechanical “Home”, users can set the rising-edge of ORGP as the mechanical “Home” (B=2).
A=3: Reverse homing and ORGP (Reference “Home” sensor) is regarded as a reference “Home”. At this
time, users can set B=0, i.e. return to find Z-phase pulse during homing and regard Z-phase pulse as a
precise mechanical “Home” or set B=1, i.e. do not return and go forward to find Z-phase pulse and
regard Z-phase pulse as a precise mechanical “Home”. If users do not use Z-phase pulse as
mechanical “Home”, users can set the rising-edge of ORGP as the mechanical “Home” (B=2).
A=4: Forward-finding Z-phase pulse “Home”. This function is usually used when the servo motor runs within
one revolution. The servo motor can not be connected to any external sensor switch at this time.
A=5: Reverse-finding Z-phase pulse “Home”. This function is usually used when the servo motor runs within
one revolution. The servo motor can not be connected to any external sensor switch at this time.
B: Homing Moving Method
B=0: After find reference “Home” (after homing completed), the servo motor returns in 2nd step speed to find
the nearest Z-phase pulse as the mechanical “Home”.
B=1: After find reference “Home” (after homing completed), the servo motor does not return and continue to
go forward in 2nd step speed to find the nearest Z-phase pulse as the mechanical “Home”.
B=2: When A=2 and A=3, find the rising-edge of sensor ORGP as the mechanical “Home” and stop
according to deceleration time. When A=4 and A=5, stop according to deceleration time after find Z-
phase pulse.
C: Homing Enable Setting
There are two settings for enabling homing function. One is automatically enable homing function and the
other is to enable homing function by input contact (SHOM).
C=0: Disable homing function. When C is set to 0, it indicates that homing function is disabled no matter
what other parameter values are.
C=1: Enable homing function automatically after power in connected to the servo drive. This function is valid
only when power on and servo on. It is used on condition that it doesn’t need to repeat the execution of
homing function when the servo drive is operating. Use this function can save an input contact which is
used for executing homing function.
C=2: Enable homing function by SHOM input contact. To use this function, set any one register of parameter
P2-10 ~ P2-17 (Digital Input Terminal 1 ~ 8) to SHOM. The setting value of parameter P2-10 ~ P2-17
should be 127(contact “a”) or 27(contact “b”). Then, user can enable the homing function by triggering
SHOM input contact at any time when the servo drive is operating.