Instruction Manual

77Publication 1756-UM525A-EN-P - June 2003 77

Chapter

Troubleshooting the 1756-HYD02 Module

What This Chapter Contains

This chapter describes how to troubleshoot the 1756-HYD02 module.

Using the Status Indicators

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 below.

For more information about: See page:

Using the Status Indicators 77

Using the OK Indicator 78

Using the FDBK Indicator 79

Using the DRIVE Indicator 80

Using RSLogix 5000 to Troubleshoot the

Module

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