Rockwell Automation 999 IMC S Class Compact Motion Controller (Cat. No. 4100-999-122) User Manual
Page 133

Understanding IMC-S/23x Setups
5-53
Publication 999-122 - January 1997
•
Electro-magnetic noise
•
Loss of encoder input to the IMC-S/23x
•
A transducer error reported by the converter card (not all converter
cards report errors by triggering Encoder Loss Fault)
Encoder loss detection is forced on for the alignment procedure even
if it was not selected in the Edit Feedback Configuration. If any of the
faults listed above occurred, the alignment routine aborts and the home
offset (Home Position) remains unchanged. If those faults occur:
1. Verify the integrity of the system wiring and installation.
2. Correct any problems.
3. Perform the alignment procedure again.
Checking The Discrete I/O
Six I/O tests are provided to verify correct hookup and operation of the
axis-specific (dedicated) discrete inputs and outputs of the IMC-S/23x
and the Flex I/O. Since each application uses the discrete I/O differently,
refer to a wiring or schematic diagram of how the I/O is connected on
your machine before running the discrete I/O test.
The six discrete I/O tests are as follows:
•
Dedicated Input Test
•
Dedicated Output Test
•
Discrete Input Test
•
Discrete Output Test
•
Analog Input Test
•
Analog Output Test
Each of these tests is explained following.
Checking the Dedicated Discrete Inputs
The five dedicated discrete inputs (home, positive overtravel, negative
overtravel, drive fault, and position registration) for each axis are
checked using the dedicated input test. When this test is run, the current
state (
ON
or
OFF
) of the five dedicated inputs for the selected axis is
continuously displayed as shown below.
Manually activate the devices connected to the dedicated inputs and
verify that the state (
ON
or
OFF
) displayed beneath each input label
changes properly.
HOME +OTRV -OTRV FAULT REG
OFF OFF OFF OFF OFF