Emotiontek MCU 2 Axis, Руководство пользователя

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Chapter 3. Homing
Chapter 3. Homing
3.1 Homing
A home is a fixed position in a machine, and must be recognized to a controller by execution of
its return after application of power.
After completion of homing return, the home becomes ‘0,0’, on which all the coordinates of
movement command thereafter are based.
The velocity and method of executing a homing return are performed by parameters.
3.2 Homing parameters
1) Homing signal (Parameter P15)
Set the type of homing DOG sensors(A contact, B contact) for a homing return.
For equipment without homing return, set it to ‘Disable’. In this case, the parameters
described below have no meaning.
2) Homing direction (Parameter P16)
Set a homing direction. If the homing DOG sensor is located in the negative direction,
then set to ‘MINUS’, and if it is located in the positive direction, then set to
‘PLUS’.
3) Homing method (Parameter P17)
Set a homing method. Details of homing methods are described in Section 3.3.
4) Homing velocity 1,2,3 (Parameter P20, P21, P22)
Homing velocities 1,2,3 are parameters to set a moving velocity during homing return
movement.
Homing velocity 1 sets a velocity until detecting a homing DOG sensor.
Homing velocity 2 sets a velocity until being out of the homing DOG sensor and a velocity
of additional movement after a homing return.
Homing velocity 3 sets a velocity until a signal for completion of a homing return is
detected.
Details are described in Section 3.3.
5) Limit switch homing return function (Parameter P64)
Set this when replacing a limit sensor in the homing return direction with a homing DOG
sensor. Even though this parameter is set to ‘Enable’, set the type of a limit sensor
used for a parameter P15(homing signal) in the same way. And you can use the X0.4,
X0.5(HOMING SWITCH) as a user contact.
6)
Going further after a homing return (Parameter P66)
This is a function to complete an action of homing return described in Section 3.3, move a
distance set in this parameter at a velocity of “homing return velocity 2”, decelerate,
stop, and then reset the position as its home.