Rockwell Automation 2705 REDIPANEL KEYPAD MODULE USER MANUAL - Manual (Page 81)

A–B
8 Chapter
8–1
Maintenance and Troubleshooting
This chapter describes how to use the Comm/Fault LED indicators, and
explains the power–up sequence error message display, plus addresses basic
troubleshooting questions on the RediPANEL Keypad Module.
Two LED indicators are located on the right top corner of the module -
a green LED labeled COMM and a red LED labeled FAULT.
The FAULT Indicator
Any software or hardware faults not related to communications are indicted
by the red LED labeled FAULT. The LED can be in one of three states:
1. OFF
2. ON
3. Blinking
FAULT OFF
When FAULT indicator is OFF:
1. Module is operating correctly and no faults have been found.
2. The module is not receiving input power.
FAULT ON
When FAULT indicator is ON:
1. The module has just been powered up. The FAULT indicator momentarily
is ON during the power up sequence.
2. A fault has been detected. Such a fault would be internal to the module -
there is no way to clear this fault condition. Keypad Module power
should be recycled.
FAULT Blinking
When FAULT indicator is blinking:
1. DIP switch fault:
•
Check for valid data type.
•
Make sure you have programmed the PLC for handshaking before
enabling the handshake bit on the Keypad Module.
2. The calculated size and rack address combination is not valid. For
example, the module is addressed for the “last module group”, group 3,
of a logical rack and its size was calculated to be a half rack. The
functional configurations which result in a size of two quarter racks are
indicated in Chapter 5.
Chapter Objectives
Using the Comm/Fault LED
Indicators