MEAN WELL RSD-500 Series 500W Enclosed Type Reliable Railway DC DC Converter Instruction Manual

MEAN WELL RSD-500 Series 500W Enclosed Type Reliable Railway DC DC

Converter

Product Information

The RSD-500 is a reliable railway DC-DC converter series with an enclosed type design. It has a power rating of 500W and is compliant with IEC62368-1, UL62368-1, AS/NZS62368-1, and TPTC004 standards. The converter is available in different models with varying output voltages and currents.

Specifications

Features

• * Ripple & Noise: Maximum 100mVp-p

  • Voltage Adjustment Range: 12 ~ 14V

  • Line Regulation: 120mVp-p

  • Load Regulation: 150mVp-p

  • Setup, Rise Time: 500ms, 60ms

  • Hold Up Time: Refer to page 4 hold up time (Load de-rating
    curve)

  • Voltage Continuous Range: 16.8 ~ 33.6Vdc

Product Usage Instructions

To use the RSD-500 railway DC-DC converter, follow these steps:

1. Ensure that the input voltage is within the specified range for the model you are using. The lockout voltages for different input voltages are as follows:
   • 24V input: Power ON at 16.8V, OFF at 16.5V
   • 48V input: Power ON at 33.6V, OFF at 33V
   • 110V input: Power ON at 67.2V, OFF at 65V
2. Connect the input power source to the converter’s input terminals.
3. Connect the load device to the converter’s output terminals.
4. Ensure that the load device does not exceed the rated current and power values specified for the model you are using.
5. If required, adjust the output voltage within the range of 12 ~ 14V using the provided adjustment mechanism.
6. Once all connections are secure, power ON the converter.

Refer to the user manual for more detailed instructions on specific features, protection mechanisms, and safety guidelines.

FEATURED

• Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
• 1U low profile 41 mm
• 2:1 wide input range
• Fanless design, half encapsulated,cooling by free air convection
• -40~+80°C wide operating temperature
• DC output adjustable
• Protections: Short circuit / Overload / Over voltage /Over temperature / Input reverse polarity/Input under voltage protection
• 4KVdc I/O isolation(Reinforced isolation)
• Operating additude up to 5000 meters (Note.5)
• LED indicator for power on
• 3 years warranty

Applications

• Bus, tram, metro or railway system
• Industrial control system
• Semi-conductor fabrication equipment
• Factory automation
• Electro-mechanical
• Wireless network
• Telecom or datacom system
• Highly vibrating, highly dusty, extremely low or high temperature harsh environment
• GTIN CODE
  MW Search: https://www.meanwell.com/serviceGTIN.aspx

Description

RSD-500 series is a 500W enclosed type reliable railway DC-DC converter. This series is compliant with BS EN/EN50155/BS EN/EN45545-2 railway standard, constituting three types of models with 2:1 wide but different input ranges 16.8~33.6V/33.6~67.2V/67.2~154V, suitable for railway and all kinds of transportation systems exploiting the frequently used standard input voltages such as 24V, 36V, 48V,72V, 96V and 110V. Various output voltages, 12V, 24V and 48V are available for selection.
This series has the capability of working under -40~+80°C, low ripple and noise, supreme MC characteristics,4KVdc I/O isolation, low enclosure profile 41mm and an interior with semi-potted silicone. It does not only well fits the in-car systems or the facilities by rails for railway, trams and buses but also can be used in the harsh environment with high vibration, high dust, extremely low or high temperature, etc.

Model Encodina

SPECIFICATION

Block Diagram

Input Fuse
There are two or three fuses connected in series to the positive input line, which are used to protect against abnormal surge. Fuse specifications of each model are shown as below.

Input Reverse Polarity Protection
There is a MOSFET connected in series to the negative input line. If the input polarity is connected reversely, the MOSFET opens and there will be no output to protect the unit.

Input Range and Transient Ability
The series has a wide range input capability. Within #30% of rated input voltage, it can be executed at full-load operation and operate properly; with ‡40% of rated input voltage, it can withstand that for 1 second.

Input Under-Voltage Protection
If input voltage drops below Vimin, the internal control IC shuts down and there is no output voltage. It recovers automatically when input voltage reaches above Vimin, please refer to the cruve below.

Inrush Current
Inrush current is suppressed by a resistor during the initial start-up, and then the resistor is bypassed by a Relay to reduce power consumption after accomplishing the start-up.

Hold-up Time

• EN50155:2017 version- D type is in compliance with S2 level (10ms), while B and C types are in compliance with S1 level (3ms) at full load output condition.
  To fulfil the requirements of S2 level (10ms), B and C types require de-rating their output load to 70%, please refer to the curve diagrams below.

Efficiency vs Load & Vin Curve
The efficiency vs load & Vin curves of each model are shown as below.

Overload Protection

If the output draw up to 105~135% of its output power rating, the converter will go into overload protection which is constant current mode. After the faulty condition is removed, it will recover automatically. Please refer to the diagram below for the detail operation characteristic. Please note that it’s not suitable to operate within the overload region continuously, or it may cause to over temperature and reduce the life of the power supply unit or even damage it.

Over Voltage Protection
The converter shuts off to protect itself when the output voltage drawn exceeds 115~140% of its output rating. It must be repowered on to recover.

Over Temperature Protection
The converter shuts off to protect itself when the built-in temperature sensor mounted on the main power transformer senses a high temperature.
It must be repowered on to recover.

LED Indicator
Equipped with a built-in LED indicator, the converter provides an easy way for users to check its condition through the LED indicator.

• Green: normal operation;
• No signal: no power or failure.

Derating Curve

• Single unit operation
  If the unit has no iron plate mounted on its bottom, the maximum ambient temperature for the unit will be 55°C as operating under full load condition.
  It requires de-rating output current when ambient temperature is between 55 – 80°C, please refer to the de-rating curve as below.
  Suitable installation methods are shown as below. Since RSD-500 is a semi- potted model, its thermal performances for the following installation methods are similar and share the same derating curve.

• Operate with additional iron plate
  If it is necessary to fulfil the requirements of EN50155 TX level that operate the unit fully loaded at 70°C, RSD-500 series must be installed onto an iron plate on the bottom. The size of the suggested iron plate is shown as below. In order for optimal thermal performance, the iron plate must have an even & smooth surface and RSD-500 series must be firmly mounted at the center of the iron plate.

The load vs ambient temperature curve is shown as below.

Suitable installation methods are shown as below. Since RSD-500 is a semi- potted model, its thermal performances for the following installation methods are similar and share the same derating curve.

Immunity to Environmental Conditions

EN45545-2 Fire Test Conditions

Mechanical Specification

Installation Manual

Please refer to : http://www.meanwell.com/manual.html

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