User guide

Troubleshooting
41
4.4 Test Mode
A Test Mode is available whenever there are no faults present within the sub-system. In this mode the Amber and
Green LEDs on each of the drive carrier modules are flashed on and off in sequence.
To Activate Test Mode (with no other faults present)
Press the Alarm Mute push-button until a double beep is heard. The LEDs will then flash until reset, either by
pressing the Alarm Mute push-button again or if any actual fault occurs.
4.5 Troubleshooting
The following sections describe common problems, with possible solutions, which can occur with your Galaxy 55
system.
Table 4–1 Ops Panel LED Status
4.5.1 System Faults
Note See also Section 4.5.5.
LED Off Green Steady Green/Amber
Flashing
Amber Steady Section Ref
No.
System Status Power off or
Standby
ESI functions all
OK
System
Configuration
Error
ESI / I2C function failure 4.5.1
Drive Status Power off or
Standby
No fault reported SES data transfer
in progress
Not Used 4.6
Power/Cooling Power off or
Standby
All PSU/Fans OK Not Used Any PSU or Fan fault 4.5.2
UPS Status Not used on 1x12-FC I/O modules
Power Off or
Standby
UPS operational
AC power OK
UPS indicates
Power Failure
Two minute warning from
UPS
Standby No AC supply Standby or
Power good
Not Used Machine in Standby due
to ESI Thermal Shutdown
4.5.4/
4.5.5
Symptom Cause Action
1 The SYSTEM LED will
illuminate AMBER
2 Audible Alarm sound
The ESI processor
has detected an
internal fault (e.g.
failure of an internal
communications
path)
1 Check for other AMBER LED indications on the
Power Supply/Cooling modules. If there is a PSU
error present there may be a communications
problem with that Power Supply/Cooling module.
Remove and then re-fit the module, if the problem
persists then change the module.
2 Check for other AMBER LED indications on the
drives carriers. If none are evident then there may
either be an ESI processor problem or a Backplane
problem.
3 Change the ESI/Ops Panel module (see 4.9.2).