Danaher Motion B8961, Operator'S Manual

Page: 40 / 158

B8961 and B8962 User Manual
38
This option selects which side (positive or negative) of the home switch active
region the Smart Drive must find before searching for the index channel of the
encoder.
1.
Use
ß
and
à
keys to select an axis.
2. Use
á
and
â
keys to select the active edge as the positive or negative side of
the home switch.
EDIT SETUP HOME SWITCH
Home Switch [HS]
Default:Normally Open
Axis One Home Switch-
ß
Norm Open
à
This option selects the type of switch used for the home input for each axis.A
Normally Open switch connects to ground when activated.A Normally Closed
switch is pulled high when activated.
1.
Use
ß
and
à
keys to select an axis.
2. Use
á
and
â
keys to select the switch type.(NORM OPEN or NORM CLOSED)
This option sets the home offset for each axis.After a successful homing move,the
home position (the default home position is +0.0000) is set to the offset value.
1.
Use
ß
and
à
keys to select an axis.
2. Use the numeric k eys to enter a new home offset value in DIST units.
A home offset allows you to have separate systems with identical pro grams in them.
All you have to change is the home offset value for each machine.It helps reduce
start up time,since your home limit switch can now be almost anywhere.It also
reduces the time necessary to get a system back up and running should your home
switch ever get damaged or moved.
Example:Home Offset = 1.0000
When the control finds the home position,it sets the position counter to
1.0000 distance unit.The absolute zero position counter is now referenced
1 unit behind the mechanical home position.All absolute moves will be
referenced from the absolute zero position.
EDIT SETUP HOME OFFSET
Home Offset [HO]
Default:0.0 (Distance Units)
- Axis One Home Offset
ß
0.0 rev
à
EDIT
SETUP HOME EDGE
Home Edge [HE]
Default:NEGATIVE
- Axis One Home Edge -
ß
NEGATIVE
à
Homing Mode Description
SWITCH ONLY GH will only home to the appropriate edge of the home switch
regardless of encoder mode.This is the only mode available without
an encoder.
SWITCH THEN Z GH will home to the switch,align to the edge and then slowly move
until an encoder Z pulse is found.This mode requires an encoder.
Z CHANNEL ONLY
GH will slowly move until an encoder Z pulse is found.The state
of the home switch is ignored.The magnitude of the GH velocity
parameter is ignored.The sign of the GH velocity paramter deter-
mines the low speed direction.This mode requires an encoder.