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Installation Manual
| DCIPS2B-S-00-B11 Power Supply System
2.1 Overview
This chapter contains an overview of the system and a short description of the units in the
system.
The DCIPS2B 2U power system is designed to meet the requirements of modern
telecommunications equipment.
management and power distribution. The power system utilizes fan-cooled, hot-swappable
fan-cooled, hot-swappable rectifier modules DCIPS2-3000; each with an output of up to
2900W.
The power system can be managed locally through messages and alarms displayed on
the LCD screen of system controller, or remotely using the PC-based PowCom™ software
package.
The power system contains 3 rectifier positions and modules depending on your order, one
system controller, and distribution unit.
The DCIPS2B 2U system consists of:
1. System Controller
2. Rectifier module
3. Load and Battery Distribution
4. AC Surge Protection Device (Option)
5. AC Input Terminal Block
6. DC Connection Busbars
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1
Figure 2-1 Power System Overview
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Chapter 2 System Description
This power solution provides rectification, system
7. Alarm Interface Board
5
4
6
3
2
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The DCIPS2B 2U is capable of delivering up to 8.8kW steady state power to the combined
load and batteries. The maximum power available to the load is 10.4kW. The system is
based on hot-swappable 48V rectifier modules which are working in parallel with automatic
load sharing.
The power system is normally configured with N+1 redundancy, with N as the number of
rectifier modules necessary for feeding the load and charging the battery and 1 as the
redundant rectifier module. In normal operation the rectifier modules are used to feed the
load and simultaneously maintain the batteries in a fully charged state.
Once the mains input power is failed, the rectifiers are shut down and the batteries feed
the load immediately. If the battery voltage drops below a preset level, the Low Voltage
Disconnection (LVD) circuit disconnects the batteries automatically to prevent over-discharge
of the battery to prolong battery life. When the mains input power is restored, the rectifiers
will start up automatically to feed the load, close LVD circuit and recharge the batteries.
System performance is supervised and controlled by the controller, PCC or ACX Advanced.
The DC output voltage, alarm thresholds, LVD circuit operation, temperature compensated
battery charging can be set by the controller. Any malfunction will be indicated by LED, text
in the display and operation of dry contacts.
However, the system controller is not a single point of failure. In the event of controller
malfunction, basic tasks like feeding the load and charging batteries will be maintained by
the rectifier modules directly at preset default values.
The alarm and threshold setting of the power system can be set either through the buttons
and operation menu on the local controller, or remotely through the PowCom™ supervision
software.
Controller
Rectifier
AC
Rectifier
Figure 2-2 Principal of Operation
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DC Distribution
Load Breakers
LVBD
Battery Breaker
Battery
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