Diagnostics and Troubleshooting - User Interface

Scanner Diagnostic LED Indication

The scanner uses its LED to communicate diagnostic information. These diagnostics are a subset of the main CPU’s and are listed below.

Table 30 - Scanner Diagnostics

Table 30 - Scanner Diagnostics

Diagnostic

Number

Possible Cause

Scanner Action

User Action

Condition

of

 

 

 

 

Strobes

 

 

 

 

 

 

 

 

Ram Failure

1

RAM failed on power-up.

Executes an infinite

1. Cycle power

 

 

 

loop that toggles the

2. Replace scanner

 

 

 

LED.

 

 

 

Communications and

3. Replace rack

 

 

 

module scanning are

 

 

 

disabled.

 

 

 

 

 

 

Rom Failure

1

ROM failed on power-up.

Executes an infinite

1. Cycle power

 

 

 

loop that toggles the

2. Replace scanner

 

 

 

LED.

 

 

 

Communications and

3. Replace rack

 

 

 

module scanning are

 

 

 

disabled.

 

 

 

 

 

 

Invalid

2

The scanner has not been

Does no scanning of

1. Verify that the jumpers on the

configuration

 

configured by the main CPU.

modules. Modules

scanner are setup for the

 

 

 

remain in their failsafe

correct rack address.

 

 

 

state.

2. If a hub is used, check that all

 

 

 

 

 

 

 

 

cables are properly connected

 

 

 

 

to the hub, proper crossover

 

 

 

 

cables are used, and that hub

 

 

 

 

is powered.

 

 

 

 

3. Cycle power to the rack.

 

 

 

 

4. Cycle power to the hub.

 

 

 

 

5. Replace the expansion

 

 

 

 

rack’s(C50 CPU only) power

 

 

 

 

supply.

 

 

 

 

6. Replace the expansion rack.

 

 

 

 

7. Replace the main CPU.

 

 

 

 

8. Replace the expansion rack’s

 

 

 

 

scanner board.

 

 

 

 

 

Revision 5

HC900 Hybrid Controller Installation and User Guide

135

9/03

 

 

Page 145
Image 145
Honeywell HC900 manual Scanner Diagnostic LED Indication, Scanner Diagnostics

HC900 specifications

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