AMETEK 1746 LDT Interface Card User Manual
Page 17

Chapter 3: Set-Up & Programming
Installation & Programming Manual
14
RPM (Word 4, also Word 7 for Dual Axis, Words 3, for configuration 6 only)
The RPM data is given in 1 word and ranges from zero to 2048. It is updated every 14.68ms.
Stopping Time (Word 5, for Configuration 1 only, Word 4, for configuration 6 only)
The actual stopping time is given in 1 word and ranges from zero to 65,535ms.
Stopping Angle (Word 6, for Configuration 1 only, Word 5, for configuration 6 only)
The actual stopping angle is given in 1 word and ranges from 0 to 65,535 scaled counts.
NOTE: This is the angular difference between the resolver position when the input was detected and
the resolver position when it stopped.
S4 Open Error
The S4 open bit is set when this error is detected on either one of the resolvers. Resolver #1 is in bit 4
and resolver #2 is in bit 0. This bit is clear when no error is present.
Configuration Register (Word 1)
This register will reflect the current configuration number of the system. Because the input image table is
set up differently for each configuration, it allows the user to know what data is present in the table and
verify that the system is configured the way it is supposed to be.
Position (Words 2 and 3, also Words 5 and 6 for Dual Axis, words 2, 6 and 7 for configuration
6 only)
The scaled position is given in two registers, position high and position low. The position data can range
from -2,147,483,648 to 2,147,483,647. (See Appendix A: Specifications.)
S1 Open Error
The S1 open bit is set when this error is detected on either one of the resolvers. Resolver #1 is in bit 5
and resolver #2 is in bit 1. This bit is clear when no error is present.