Positive and negative overtravel – Rockwell Automation 2099-BMxx Kinetix 7000 High Power Servo Drive User Manual User Manual
Page 57
Rockwell Automation Publication 2099-UM001D-EN-P - December 2012
57
Kinetix 7000 Connector Data
Chapter 3
Positive and Negative Overtravel
The Positive and Negative Overtravel detection is provided by two optically
isolated (500V), single-ended, normally-closed, active high signals. Breaking the
24V DC input at either pin indicates an overtravel condition.
You can enable hard travel limits on the axis servo drive Limit tab in RSLogix.
Hard travel limits require power to both the positive and negative overtravel
inputs. You can monitor the positive and negative overtravel input status in the
axis servo drive tag.
Notes:
• A status of “1” indicates a normally closed input and a drive ready for
movement.
• Hard overtravel limits can only be selected in a linear conversion selection.
This input is level sensitive. See
Table 19
-
Digital Input Descriptions
and
Table 20
-
Digital Input Specifications
starting on page
54
for On/Off signal
voltages and current levels.
Kinetix 7000 drive Positive and Negative Overtravel functions and faults actions
are programmed through RSLogix software. Kinetix 7000 drive firmware
provides an additional 50ms of debounce.
The schematic below depicts the Positive and Negative Overtravel circuits. It is
provided as a reference only.
Figure 33 - Positive and Negative Overtravel Input Diagram
(1) +24V DC source (range) = 21.6…26.4V (supplied by the drive, not to exceed 300 mA total).
Maximum current input = 10 mA.
IMPORTANT
Overtravel limit input devices must be normally-closed.
ATTENTION: Overvoltage protection is not provided for the Positive and
Negative Overtravel input signal.
It is recommended to use the on drive power to power the Positive and Negative
Overtravel signals. If an external power source is used, you must take responsibility
to be sure that the voltage/current does not exceed the rating of the input.
2k
Ω
0.1
μ
F
511
Ω
VCC
INPUT
IO_COM
I/O SUPPLY
1k
Ω
Kinetix 7000 Drive
Customer-supplied Input Device
+24V DC
(1)
Positive Overtravel
or
Negative Overtravel
IOD-7, 10
IOD-9, 12
IOD-8, 9