IAI America REXT - Manual (Page 298)

Part 2 Startup Chapter
Chapter 4
Absolute Reset
272
Part 2 Startup Chapter
Chapter 4 Absolute Reset
4.1 Overview of Simple Absolute System
To combine the RPCON or RACON controller unit with the simple absolute R unit for use as an absolute axis, an absolute
reset must be performed. Once an absolute reset is performed, home return will no longer be required every time the power to
the controller unit is turned off.
An internal block diagram of the simple absolute R unit is shown below.
The startup procedure is as follows:
[1] Set the configuration switches (piano switches)
[2] Connect the backup battery
[3] Perform an absolute reset
Controller unit Simple absolute R unit
Encoder input
connector
Incremental
pulses
Absolute data
(Serial
communication)
CPU control circuit
U/D counter
(Creation of
absolute data)
Encoder
receive
circuit
Backup battery
Encoder signal
(incremental)
Actuator
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