DELTA MCS-1800 3U Power Shelf

Installation, Operations and

Maintenance Manual

4.2.5 ALU Alarm Signal Descriptions

MAJ:

Major Alarm

(1)2 or above rectifiers fail.

(2)Temperature sensor disconnects.

(3)AC Low Voltage Alarm.

(4)AC High Voltage Alarm.

(5)LVDS Trip Alarm. (System equipped with PDU)

(6)Battery or Ambient over temperature. (System equipped with PDU)

(7)HVSD Alarm.

(8)Breaker Trip Alarm.

MIN: Minor Alarm

(1)One rectifier fail.

(2)Current Limit Alarm.

(3)DC High Voltage Alarm.

(4)DC Low Voltage Alarm.

HV:

The alarm condition exists when the DC output voltage is higher than the parameter setting.

LV:

The alarm condition exists when the DC output voltage is lower than the parameter setting.

AC Fail:

The alarm condition exists when the AC voltage is absent.

LVDS:

The alarm condition exists when the DC output voltage is lower than the threshold voltage.

 

(System equipped with PDU)

Fuse Fail:

The alarm condition exists when the battery switch trip off or the DC Load output switch trip off.

4.2.6 Physical

Table 18 displays the ALU mechanical data.

Table 18 ALU Mechanical Data

Dimension

Value

Height

Depth

Width

5.2in. (132mm)

9.9in. (251.3mm)

1.9in. (46.2mm)

4-3

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Image 18
Delta MCS-1800 manual ALU Alarm Signal Descriptions, Physical