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Section 1 - Channel Assignments
Channels can be assigned to either the machine or the tool.
Since “Backing out” of a setup once underway can be difficult (that’s a lie – it’s impossible), it’s important that
the MACHINE vs. TOOL sensor decision be made FIRST with some forethought. It would be VERY disruptive
to change your mind later with 100 tools programmed, and thousands of signatures in the database. The
difference between the types is this:
1)
Channels that are assigned to the Machine will always be active. They will have the same calibration
regardless of which tool is being used. These channels are connected to sensors that are permanently
mounted on the press, such as sensors that are mounted to uprights or a connection.
2)
Channels that are assigned to the Tool will be active only when the tool the sensor belongs to is in
use. The description of the sensor, calibration factors, etc., will be set according to the values in the
individual tool program. These channels are connected to sensors that are physically disconnected and
removed with the tool, whenever the tool is changed.
NOTE: It is possible to program a channel in BOTH the machine AND the tool. In case a tool is
installed with channels active that are also programmed as machine channels THE TOOL WILL
WIN!!!! This is not a recommended procedure, but will (generally) not “Crash” the system if it
occurs.
ALSO: It would be a good idea to make out a list of the channels and the NAMES of the sensors that will be
connected to the channel since that will be needed in the setup procedure. If you’re not sure where
physically on the machine the sensor cables are coming from (it happens) NOW is the time to find out.
For example: The sensor mounted on the Rear Left Upright is wired into the Channel #1 Terminals in
the TEC box which is cabled to the SA2000™ with ARCNET Address #5.
Note:
Channel #1 on SA2000™ Address #1 is displayed as: 05:00 - the 05 refers to the SAM2000™
Arcnet address setting, and the channel number :00 is "computerese" for channel #1 – the
channels in this field are numbered 00 thru 07 instead of #1 thru #8.
In the example above, Channel 05:00 should be labeled “Rear Left Upright” In the channel definition list
so you will know what its signature comes from:
Figure # 30 - Channel Labeling
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