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Installation Manual
| DCIPS2B-S-00-B11 Power Supply System
2.3.2.2 Partial Load Disconnection / Load Shedding (PLD)
Partial load disconnection can be configured to be voltage or time dependent, this is
selected when ordering the power system.
At a mains outage the controller will open the PLD contactor when the batteries have
discharged to a certain voltage or if the battery voltage has been under a certain voltage
for a predetermined time. The disconnection has to be set according to the present load
and battery manufacturer's discharge tables or requirements.
2.3.3 Rectifier Module
The fan-cooled rectifier converts the AC input to -48VDC output for loads and batteries. It
is designed for parallel operation and plug-in installation in the power shelf and supplies
extremely stable DC power.
Each rectifier incorporates an internal microprocessor that sends frequent updates to the
system controller and adjacent rectifiers. This ensures accurately controlled load sharing
among rectifiers and supplies status and identification information to the controller.
The rectifier module features two LEDs for status indication, thermal protection with
power derating, and input over voltage disconnection with automatic reset. The rectifier
module is hot-swappable and can be quickly removed and replaced without disrupting
the system or load.
Figure 2-5 DCIPS2-3000 Rectifier
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Handles
Cooling Fans
Status LEDs
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3.1 Safety Warnings and Guidelines
The following warnings and guidelines should be followed by properly trained and authorized
personnel when installing, operating, commissioning or maintaining this equipment.
Neglecting the instructions may be dangerous to personnel and equipment.
3.1.1 System Markings
The following markings are found on the Power System:
Ground Symbol
DC Ground Symbol
Product Label - The product label contains the system part number, model number, system
ratings and safety approvals. The label is located inside the system.
Safety Label - The safety label is located inside the system.
3.1.2 Safety Recommendations
Any device that uses electricity requires proper guidelines to ensure safety.
•
The Power System should only be installed or serviced by a qualified personnel.
•
Always keep tools away from walkways and aisles. Tools present a tripping hazard
in confined areas.
•
Keep the system area clear and dust-free during and after the installation.
•
Always know the location of emergency shut-off switches in case of an accident.
•
Always wear appropriate eye protection and use appropriate tools for working with
high voltage equipment.
•
Do not perform any action that creates a potential hazard to other people in the
system area.
•
Never work alone in potentially hazardous conditions.
•
Always check for possible hazards before beginning work.
•
Remove watches, rings and jewelry that may present a hazard while working on the
power system.
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Chapter 3 System Safety
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