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Chapter
5
Troubleshooting the 1756-HYD02 Module
What This Chapter Contains
This chapter describes how to troubleshoot the 1756-HYD02 module.
For more information about:
Using the Status Indicators
See page:
Using the Status Indicators
5-1
Using the OK Indicator
5-2
Using the FDBK Indicator
5-3
Using the DRIVE Indicator
5-4
Using RSLogix 5000 to Troubleshoot the
Module
5-5
The ControlLogix Hydraulic Servo module uses a single bi-colored
LED to indicate module OK status and bi-colored LED indicators to
show individual feedback (FDBK) and drive (DRIVE) status for both
axes.
During power-up, the module completes an indicator test. The OK
indicator turns red for 1 second and then turns to flashing green if the
module passes all its self tests.
The module’s status indicators are shown in Figure 5.1.
Figure 5.1
HYDRAULIC
AX 0
AX 1
FDBK
FDBK
DRIVE
DRIVE
OK
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Publication 1756-UM525A-EN-P - June 2003