Delta MCS-1800 Specifications Page 14

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DELTA MCS-1800 3U Power Sh
elf
Installation, Operations and
Maintenance Manual
3-4
3.2.3 Status/Alarm Indicators
Table 11 displays the status alarm indicators
Table 11 Status Alarm Indicators
Indicator Color Function Description
LED Amber CL Current Limit
LED Green AC AC ON
LED Red RFA Rectifier Failure Alarm
3.2.4 Mechanical Data
Table 12 displays the rectifier mechanical data.
Table 12 Rectifier Mechanical Data
3.3 Operation and Adjustment
All operating adjustments are made at the front panel of each rectifier. The following components are
located on each rectifier panel:
1. Float voltage adjustment
2. Current limit adjustment
3. Current test points
4. Alarm indicators
Figure 3 shows different indicators and adjustment points on this unit.
Rectifier adjustments must be done sequentially from the first through the fourth rectifier with AC applied.
All adjustments must be made with no load, and the batteries disconnected to ensure adjustment accuracy.
3.3.1 Start-Up
To start up the system, perform the following steps:
1. Aproximately 3 to 8 seconds after the AC applied, the RFA LED extinguishes.
3.3.2 Float Voltage Adjustment
Verify the required float voltage setting per battery manufacturer specification. If the factory setting differs
from the battery manufacturer recommended setting, the ALU float voltage parameter and each rectifiers
float voltage must be adjusted to the new setting. A digital multimeter and a small screwdriver are required
to perform this procedure. Located the float voltage access point (FL) at the front of the rectifier.
To adjust the float voltage, perform the following steps:
1. Remove the ALU.
Dimension Value
Height 5.2 in. (132mm)
Depth 10.35 in. (263mm)
Width 3.3 in. (83.6mm)
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