Limit Switch Functionality
ADVANCED MICRO CONTROLS INC.
2
22
Limit Switch Outputs (continued)
Limit Advances (continued)
Variable Delays
Variable delays are typically seen in press brake control, where the time to bring the press to a halt is expo-
nentially related to the speed of the press. When programed to compensate for a variable delay, the ANS1 has
two parameters. The
Fixed Advance Time
compensates for fixed delays in the system, such as the time it
takes to engage a brake clutch. The
Variable Advance Time
is used to compensate for the variable delay in the
system.
The Fixed Advance Time is programmed in milliseconds, and has a range of 0 to 32,767. This advance
affects both the From and the To setpoints.
The Variable Advance Time is programmed in microseconds per RPM and has a range of 0 to 9999.
This advance only affects the From Setpoint.
The variable advance is calculated as follows:
Timed Limits
The ANS1 supports two types of timed limits.
Time or Position:
The output turns on at the programmed From Setpoint and turns off after the pro-
grammed period of time or when the To Setpoint is reached,
whichever occurs first.
Time Only:
The output turns on at the programmed From Setpoint and turns off after the programmed
period of time. If the From Setpoint is reached before the time out occurs, the output will turn off for
one count and then turn back on again.
Figure 2.6 Fixed Advance Example
Variable Advance
Fixed Advance Time
Global Machine Speed
2
-------------------------------------------------------
Variable Advance Time
1000
---------------------------------------------------------
+
=
Time or Position
Time Only
Limit
Switch
Setpoints
Limit
Switch
Setpoints
Timer @
150 RPM
Timer @
150 RPM
Actual Output
@ 150 RPM
Actual Output
@ 150 RPM
Timer @
100 RPM
Timer @
100 RPM
Actual Output
@ 100 RPM
Actual Output
@ 100 RPM
Содержание ANS1 ANYNET-I/O
Страница 1: ...MICRO CONTROLS INC ADVANCED U s e r M anual Manual 940 0A090...
Страница 6: ...Table of Contents ADVANCED MICRO CONTROLS INC 6 Notes...
Страница 26: ...Limit Switch Functionality ADVANCED MICRO CONTROLS INC 2 26 Notes...
Страница 36: ...Additional Functionality ADVANCED MICRO CONTROLS INC 3 36 Notes...
Страница 90: ...LEADERS IN ADVANCED CONTROL PRODUCTS ADVANCED MICRO CONTROLS INC...