AMETEK 1746 LDT Interface Card - Manual (Page 18)

Chapter 3: Set-Up & Programming
Installation & Programming Manual 14
Lower Limit 2
This bit is set when the position falls below the programmed lower limit for LDT 2. It is cleared
when the position is greater than or equal to the programmed lower limit.
Move Error 1
This bit is set if there is no movement detected within a specified time period after input 1 has
become activated. This bit is cleared when input 1 is deactivated.
No Move Error 1
This bit is set if there is movement detected within a specified time period after input 1 has been
deactivated. This bit is cleared when input 1 is activated again.
Move Error 2
This bit is set if there is no movement detected within a specified time period after input 2 has
become activated. This bit is cleared when input 2 is deactivated.
No Move Error 2
This bit is set if there is movement detected within a specified time period after input 2 has been
deactivated. This bit is cleared when input 2 is activated again.
LDT Fault 1
This bit is set when a loss of magnet has been detected on LDT 1. It is cleared when a valid
position is available for LDT 1.
No LDT Connect 1
This bit is set when a no LDT connect is detected on LDT 1. It is cleared when a valid position
is available for LDT 1.
LDT Fault 2
This bit is set when a loss of magnet has been detected on LDT 2. It is cleared when a valid
position is available for LDT 2.
No LDT Connect 2
This bit is set when a no LDT connect is detected on LDT 2. It is cleared when a valid position
is available for LDT 2.
Position
The scaled position is shown in two registers, position high and position low to the thousandth of
an inch.
Example: If the LDT position is 10.045 inches, the position high would read 0 and the position
low would read 10045. The position data can range from -2,147,483.648 to 2,147,483.647,
however, the module is designed to work in the positive range only.
Velocity
The velocity is shown in 1 word and ranges from -32.768 to 32.767 in/s.