Troubleshooting Procedure - ABB GPS4827 User Manual

Troubleshooting Procedure

Purpose
The troubleshooting procedure described below is used when a trouble condition has been identified
and a technician has been dispatched to the system as a first step in diagnosing and correcting the
problem.
For all trouble conditions, proceed as follows:
Cabinet Alarm
1. Locate the Galaxy controller. When a trouble condition exists, the red alarm on the top of the
cabinet will be illuminated and the display screen on the controller will typically have LED's
illuminated. See Figure 12-1.
Cabinet Alarm Light
Mullennium Contriller Display
2. Determine the system status. For most problems, one or more alarm and status LEDs will be
illuminated. Depending on the controller type, the following will be displayed:
• system voltage
• system current
• system mode
• system number of alarm/warnings
If the screen is blank, but alarm and status LEDs are illuminated, call technical support.
If the entire panel is blank, check the controller fuses. Verify that the controller is getting power.
If not, replace fuse. If the display is still blank, call technical support.
3. To view the Alarms Menu: If the default screen appears normal, press the MENU button. The main
menu appears with "Alarms" blinking. Press ENTER to obtain the Alarms menu. Additional data
appears that will help to identify the problem.
Page 92
© Copyright 2021 ABB. All rights reserved.
(continued)
Figure 15-1: Location of cabinet alarm indicators