User guide

42 43MAXDATA SR1202 M1 – Technical User GuideTroubleshooting and Problem Solving

Audible Alarm Mute

When the Audible Alarm sounds, it may be muted by pressing the Alarm Mute push-button, located

on the enclosure front panel. Automatic muting will take place after two minutes if the mute switch

is not manually operated.

When the alarm is muted it will continue to sound with short intermittent beeps to indicate that a

problem still exists. It will be silenced when all problems are cleared. (See also section “Thermal

Warnings“ on page 45).

LED Test Mode

The Alarm Mute push-button can also be used to activate the self-test feature for the LEDs on the

Ops Panel. The test is activated when you press the Mute push-button while no faults are present.

While the test is running all LEDs will flash.

Drive Carrier Module Faults

Disk drive status is monitored by a green LED and an amber LED mounted on the front of each Drive

Carrier Module (see Figure 33), providing the following indications:

Table 11. Drive Carrier LED Functions

State Green Amber

No drive fitted Off Off

Drive Power ON

On Off

Drive Activity On/Blink off Off

Drive Impacted

On Blink

Drive Fault

On On

Power control circuit failure Off

 NOTES

1. Drive Activity - LED may be off for a length of time during power up.

2. Impacted - any background service, e.g. initialization.

Figure 33. Drive Carrier LEDs

Auto Start Failure

Unless otherwise selected at installation time, all drives in the enclosure should automatically start

their motors after power is applied. If this has not occurred there is a power problem (an alarm and

power fault indication would normally be active).