H
OMING
AN
SMD23E2
OR
SMD24E2
SMD23E2 and SMD24E2 User Manual
ADVANCED MICRO CONTROLS INC.
56
Homing Inputs
Both of the physical DC inputs can be used when homing the driver. A Backplane Proximity bit is available in
the network output data that can be used to control when the home input is acted upon. This is typically used
in applications where the home input is triggered multiple times in a machine cycle, and the system need to
control which trigger is acted upon.
Physical Inputs
Home Input:
This input is used to define the actual home position of the machine.
CW Limit Switch Input:
This input is used to prevent overtravel in the clockwise direction.
CCW Limit Switch Input:
This input is used to prevent overtravel in the counter-clockwise direction.
Network Data Input
Backplane_Proximity_Bit:
An SMD23E2 or SMD24E2 can be configured to ignore changes on the
physical homing input until the Backplane_Proximity_Bit makes a 0
1 transition. The unit will home
on the next inactive-to-active change on the physical input once this transition occurs. You must pro-
gram your host to control the state of this bit.
This bit is disabled by default, and must be activated when you configure the SMD24E2 or
SMD24E2 before is can be used. If you decide to activate this bit when you configure the unit
and then never set it to a “1”, the SMD23E2 or SMD24E2 will never act on the physical Home
Input.
Homing Configurations
A SMD23E2 or SMD24E2 must have one of its DC inputs configured as the home input before one of the
CW/CCW Find Home
commands can be issued.
1) You do not have to configure and use CW or CCW Limits. If you choose to configure the
unit this way, then the SMD23E2 or SMD24E2 has no way to automatically prevent over
travel during a homing operation. In linear applications, you must prevent over travel by
some external means, or ensure that the homing command is issued in the direction that will
result in reaching the homing input directly.
2) You can use a bit in the Network Output Data (the Backplane_Proximity_Bit) as a home
proximity input. Using this bit is completely optional and prevents the Home Input from
being acted upon until the Backplane_Proximity_Bit makes a 0
1 transition.
Содержание SMD23E2 Series
Страница 10: ...ABOUT THIS MANUAL SMD23E2 and SMD24E2 User Manual ADVANCED MICRO CONTROLS INC 10 Notes...
Страница 44: ...MOTION CONTROL SMD23E2 and SMD24E2 User Manual ADVANCED MICRO CONTROLS INC 44 Notes...
Страница 54: ...CALCULATING MOVE PROFILES SMD23E2 and SMD24E2 User Manual ADVANCED MICRO CONTROLS INC 54 Notes...
Страница 68: ...CONFIGURATION MODE DATA FORMAT SMD23E2 and SMD24E2 User Manual ADVANCED MICRO CONTROLS INC 68 Notes...
Страница 88: ...COMMAND MODE DATA FORMAT SMD23E2 and SMD24E2 User Manual ADVANCED MICRO CONTROLS INC 88 Notes...
Страница 124: ...ETHERNET IP EXPLICIT MESSAGING SMD23E2 and SMD24E2 User Manual ADVANCED MICRO CONTROLS INC 124 Notes...
Страница 128: ...MODBUS TCP CONFIGURATION SMD23E2 and SMD24E2 User Manual ADVANCED MICRO CONTROLS INC 128 Notes...
Страница 134: ...LEADERS IN ADVANCED CONTROL PRODUCTS ADVANCED MICRO CONTROLS INC...