Meggitt Vibro Meter RPS 6U rack power module

Meggitt Vibro Meter RPS 6U rack power module

Core functions and positioning

RPS 6U is a dedicated power supply unit for VM 600 series racks, with core functions designed around "stable power supply, high reliability, and flexible adaptation", as follows:

Multi output voltage supply: Provides three DC power supplies of+5V DC,+12V DC, and -12V DC for all cards in the rack (such as MPC 4 monitoring card) to meet the power supply needs of different cards, with output currents of 35A, 6A, and 2A respectively, and a total rated power of 300W;

Redundant deployment capability: Supports parallel installation of 1-2 modules. In the event of a single module failure, redundant modules automatically take over power supply to avoid system power outages, especially suitable for critical equipment monitoring scenarios that require high power continuity;

Wide input and protection design: Supports AC or DC wide range input (such as AC 90~264V adaptive, DC 18~145V model adaptation), integrated overvoltage protection (+5V output protection threshold 5.9~6.7V), short circuit protection (electronic current limiting, continuous short circuit without damage), to cope with power fluctuations in industrial sites;

VME compatibility: fully compliant with the VME bus specification, directly connected to the VM 600 rack backplane through two connectors, without the need for additional wiring, simplifying installation;

Low loss and temperature adaptability: Only 1%/℃ power reduction within the range of 60-70 ℃, reducing performance degradation in high-temperature environments and adapting to industrial high-temperature scenarios.

Electrical parameters and performance indicators

（1） Core electrical parameters

Parameter category specification requirements

Output characteristics -+5V DC: rated output of 35A, voltage stability under load ≤ ± 0.2%, ripple (20MHz bandwidth) ≤ 50mVpp;

-+12V DC: rated output of 6A, voltage stability under load ≤ ± 0.2%;

--12V DC: rated output 2A, voltage stability under load ≤ ± 0.2%;

-Overvoltage protection: The+5V output factory is set to 5.9-6.7V, and other outputs default to overvoltage protection.

The input characteristics are divided into two types: AC/DC, and the specific range depends on the model (such as AC type 90~264V adaptive, DC type 18~32V/38.4~57.6V, etc.); AC type supports frequency fluctuations of 48-65Hz, with an efficiency of ≥ 75% (AC type) and ≥ 70% (DC type).

The power outage tolerance supports short-term power outages without resetting MPC 4 cards, and the tolerance time is related to the number of cards and power modules:

-2 MPC 4 boards: 1 module can withstand 190ms, 2 modules can withstand 250ms;

-12 MPC 4 cards: 1 module can withstand 10ms, and 2 modules can withstand 20ms.

（2） Physical and installation parameters

Specification category specific parameters

Size 6U height (compliant with rack standards), 12TE width, depth 187mm, compatible with VM 600 series ABE 04X rack

Weight approximately 2.1kg, lightweight design to avoid excessive rack load

Installation position: front of the rack, directly connected to the backplane through two connectors, without the need for additional fixing screws (relying on rack buckles)

The front panel of the panel design is equipped with+5V/+12V/-12V status indicator lights. The AC/DC versions have different panel markings for easy differentiation of models

Environmental adaptability and compliance certification

（1） Environmental parameters

RPS 6U is designed for harsh industrial environments and has the following environmental tolerance capabilities:

Environmental category specification requirements

Temperature operation: -25~65 ℃ (-13~149 ° F); Storage: -40~85 ℃ (-40~185 ° F), compliant with IEC 68-2-1/2 standard

Humidity ≤ 95% non condensing (compliant with IEC 68-2-3 standard), suitable for high humidity industrial scenarios

Vibration and shock vibration: 10-2000Hz, 5g acceleration, 2 hours in each direction (in accordance with IEC 68-2-6);

Shock: 100g acceleration, 6ms half sine pulse (compliant with IEC 68-2-27), withstand vibration shock during equipment transportation or operation.

（2） Compliance certification

Safety standards: comply with UL 1950, CSA 22.2 # 234, IEC 950, EN 60950 standards to ensure electrical safety;

EMC Compliance: Compliant with the EU EMC Directive, reducing the impact of electromagnetic interference on surrounding equipment;

Low Voltage Directive: CE Low Voltage Directive certification, labeled LR111641 Level 3, meets EU market access requirements.

Model classification and adaptation scenarios

RPS 6U is classified into different models based on input power type (AC/DC) and input voltage range. Different models are suitable for different industrial power supply scenarios. The specific classification is as follows:

Model Type Specific Model Rated Input Voltage Input Voltage Range Adaptation Scenarios

DC input type RPS 6U 24 DC 24V DC 18~32V DC Low voltage DC power supply scenario (such as vehicle mounted, small equipment)

RPS 6U 48 DC 48V DC 38.4~57.6V DC Industrial Standard 48V DC System

RPS 6U 72 DC 72V DC 57.6-100V DC medium voltage DC power supply scenario (such as large industrial equipment)