Rockwell Automation FlexPak 3000 Digital DC Drive Version 4.3 - Manual (Page 129)

Configuring the Drive to Use Level Detectors 12-1
C
HAPTER
12
Configuring the Drive to Use
Level Detectors
The level detectors detect when the absolute value of a signal becomes greater than
or equal to a specified threshold for longer than a specified period. They can be used
as zero-speed detectors, at-speed detectors, or limit switches. They are used to drive
I/O Expansion kit digital output 1 or 2. To use the level detectors,
DIG OUT 1 SELECT
(P.409) or DIG OUT 2 SELECT (P.411) must be set to LEVEL DETECT 1 OUTPUT or LEVEL
DETECT 2 OUTPUT . Level detector outputs can also be monitored over the AutoMax
network.
Figure 12.1 – Level Detectors Block Diagram
LEVEL DETECT 1 DELAY (P.604)
The delay time in
seconds for the level
detector 1 circuit. Parameter Range: 0.0 to 300.0 seconds
Default Setting: 10.0 seconds
Parameter Type: Tunable
OIM Menu Path(s): Input/Output - Level Detectors
Sets the amount of time between when the level detector timer is triggered and
when the output is set
ON . If the input source signal goes below the detector’s
threshold value, the timer is immediately reset.
To Figure 11.1, Digital
Outputs Block Diagram
From Figure 5.1, Speed Loop Block Diagram
From Figure 4.5, Speed Reference
Ramp Block Diagram
From Figure 4.2, Speed Reference
Source Select Block Diagram
* Default Selection