User manual Product description Rectier DPR 4000B .
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Table of contents 1 2 3
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About the rectifier ............................................................................................... 2 Feature overview ................................................................................................ 3 Functional description ........................................................................................ 4 3.1 Input voltage range .................................................................................. 4 3.2 Output characteristics .............................................................................. 4 3.3 Output voltage .......................................................................................... 5 3.4 Output current .......................................................................................... 5 3.5 Over-voltage protection OVP ................................................................... 5 3.6 Load sharing............................................................................................. 5 3.7 Cooling ..................................................................................................... 5 3.8 Thermal management .............................................................................. 6 Mechanical description ....................................................................................... 7 4.1 Front panel ............................................................................................... 7 4.2 Rectifier installation .................................................................................. 7 4.3 Configuration ............................................................................................ 7 4.4 Rectifier status indicators ......................................................................... 7
Product description, Rectifier DPR 4000B Table of contents
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About the rectifier The DPR 4000B-48 rectifier is a single phase rectifier, offering high power for small physical size. The rectifier provides a constant power output across the full output voltage range. The rectifier meets the supply requirements for state-of-the-art telecommunications equipment. The wide input voltage range and extended temperature operating range contribute to a cost effective and reliable solution. The typical applications include telecommunications networks and data networks. The rectifiers do not contain any user serviceable parts. A faulty rectifier module must be replaced as a complete unit. The installation description must be strictly adhered to.
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Product description, Rectifier DPR 4000B About the rectifier
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Feature overview The key features of the DPR 4000B-48 rectifier include: • • • • • • •
Energy saving – high efficiency Advanced energy saving functionality Space savings – leading edge power density Space saving – very short depth Up to 416,5 A capacity in a 19-inch shelf system Extended operating temperature range Very low audible noise
The DPR 4000B-48 rectifier is an EnergE rectifier. Delta’s EnergE labeling concept covers the rectifiers with the highest energy efficiency. Delta has set strict criteria for individual products given the label. They all have the world’s leading energy efficiency in their specific power range and always an efficiency of 95 % or higher. The label helps you distinguish Delta’s most energy-efficient rectifiers.
Product description, Rectifier DPR 4000B Feature overview
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Functional description
3.1
Input voltage range The rectifier has a nominal input voltage operating range of 207 to 276 Vrms. If the input voltage exceeds the nominal input voltage upper limit, the rectifier continues operating without power factor correction (PFC). If the input voltage rises above the maximum input voltage limit, the rectifier switches off. The rectifier has protection against AC mains voltage in the range of 300 V to 400 V for less than 60 minutes. The rectifier is not working but safe. Exposure to AC over-voltage for greater voltages, or for a longer period may cause rectifier failure. If the input voltage falls below the nominal input voltage lower limit, the rectifier continues to operate with a lower output current. If the input voltage falls below the minimum input voltage limit, the rectifier switches off. The rectifier switches on when the input voltage is within the input voltage limits.
Figure 1. DPR 4000B-48 input characteristics
Refer to the generic installation manual for power systems for further guidelines about AC over-voltage and transient over-voltage protection.
3.2
Output characteristics The rectifier has a constant output power characteristic to meet the demand of optimal power supply usage for electronic constant power loads. The result is a constant recharging current to the battery after a mains outage and improved rectifier efficiency.
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Product description, Rectifier DPR 4000B Functional description
Figure 2. DPR 4000B-48 output characteristics
3.3
Output voltage An output voltage of 53.5 V is predefined for flooded battery types. If a controller with voltage programming function is used, the rectifier output voltage can be adjusted. The output voltage range of the rectifier is 42 V to 58 V.
3.4
Output current DPR 4000B-48: The factory setting for the output current limit is 83.3 A DC.
3.5
Over-voltage protection OVP The rectifier is equipped with selective over-voltage protection (OVP). If the output voltage exceeds an internally set limit, the rectifier is shut down. Combining OVP with a current measuring condition allows selectivity for rectifiers connected in parallel to ensure that only the affected rectifier is shut down. The factory setting is 59 V ±1V. Disconnecting the mains supply voltage for approximately 2 seconds resets the rectifier after an OVP shutdown.
3.6
Load sharing The rectifier is equipped with an active load sharing function that ensures equal load on parallel rectifiers. The function uses the signal interface bus between rectifiers. This function does not require any other external unit outside rectifiers.
3.7
Cooling The rectifier uses a fan to force air through it.
Product description, Rectifier DPR 4000B Functional description
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3.8
Thermal management The rectifier is protected with two integrated thermal sensors monitoring the fresh intake air temperature and temperatures at the rectifier. Thermal management protects the rectifier against overheating by reducing the output current limit to limit internal temperature, as shown in Figure 3. To protect against interrupted air flow and fan failure, the rectifier is shut down as soon as the internal temperature reaches a critical value. If the temperature returns to within normal limits, the rectifier restarts automatically. If the airflow is interrupted or the fan fails, the rectifier recognizes several unsuccessful restart attempts within a short period. In that case the rectifier remains shut down and generates an alarm.
Figure 3. DPR 4000B-48 thermal characteristics
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Product description, Rectifier DPR 4000B Functional description
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Mechanical description
4.1
Front panel
Figure 4. DPR 4000B-48 front panel
4.2
Rectifier installation The rectifier is installed onto a shelf by sliding the module into the required location, and secured with locking clips.
4.3
Configuration On installation to a system with a PSC 3 controller, the rectifier is automatically configured. In systems without a controller or with the PSC 1 or PSC 1000 controller, the rectifier operates with the factory-set standard configuration.
4.4
Rectifier status indicators LED “ok” turns off and an alarm is given if: • •
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The input connection is missing. OVP/OTP shutdown procedure is activated or a fan failure is detected. A flashing LED in the LED bar indicates the actual event. The output fuse is blown.
Product description, Rectifier DPR 4000B Mechanical description
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The rectifier is faulty. SW download with the PSC 3.
LED “ok” blinks (200 ms on/200 ms off) and an alarm is given if: • •
Load sharing is not working correctly. The rectifier is faulty due to regulation failure.
LED “ok” flashes (20 ms on/1000 ms off) and an alarm is given if: • • •
The input voltage is out of range, but auxiliary supply is still working. The rectifier is not enabled. The rectifier is switched off and controlled by the PSC 3.
LED “Com” is lit, if: •
The device communicates with the PSC 3 controller via IMBUS.
LED “Com” turns off, if: • •
There is no PSC 3 communication with the rectifier. There is an error in the IMBUS cabling or a wrong bus termination.
LED “Com” blinks: • • • •
•
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At start-up of the rectifier and during the configuration process of the interface. When the rectifier settings are reset. There is a damage bus cable in the system. In systems with PSC 1000, and the digital bus is not equipped with a termination resistor. In stand-alone operation, and the digital bus is not equipped with a termination resistor. A PSC 3 is used to identify a specific rectifier module.
LED bar:
Figure 5. DPR 4000B-48 status indicators
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Product description, Rectifier DPR 4000B Mechanical description
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