Emerson EPW30-48A-E - User Manual

1
EPW30-48A-E Power Module
User Manual
1 Features
EPW50-48A-E power module (module for short) uses soft-switching
and input / output soft start-up technology. Its output can be
regulated through monitoring. Multiple modules can be paralleled to
share the load.
Dimensions (H × W × D): 88.2mm × 102.8mm (105.5mm with
enclosure) × 242.3mm (excluding socket dimension)
Weight: < 2.8kg
Mechanical stress: ETS300019-2
Safety: meet UL 60950-1,C22.2 NO. 60950-1, EN 60950-1
2 Environment
Operation temperature: -33 to 65°C;
Storage temperature: -40 to 70°C
Humidity: 5 ~ 95% (non-condensing)
Air pressure: 86 ~ 106 kPa
Altitude: < 4000m; Cooling: fan cooling
Vibration: random vibration in 2 ~ 500Hz in three orthogonal axes, 30
minutes in each direction
3 Electrical Specification
Input
Rated input: 200 ~ 240Vac / 115 ~ 130Vac
Input current: Max. 18.5A for single module
Rated frequency: 50 / 60Hz
Power factor: no less than 99% (rated operation condition)
Output
Rated output: 53.5Vdc (output range: 43.2 ~ 57.6Vdc)
Output power: 2900W 176Vdc ~ 300Vdc
1200W 90Vdc ~ 175Vdc
Efficiency: 92% (220Vac input and 53.5V/2900W output)
86% (110Vac input and 53.5V/1200W output)
Line regulation: ± 1%; Load regulation: ± 1%
Mains regulation: ± 0.1%
Psophemetic noise: 2mV
Broadband noise: 100mV (3.4kHz ~ 150kHz)
30mV (150kHz ~ 30MHz)
Output ripple (p-p): 200mV (0 ~ 20MHz bandwidth with load no less
than 1A)
Discrete noise: 5mV (3.4kHz ~ 150kHz)
3mV (150kHz ~ 200kHz)
2mV (200kHz ~ 500kHz)
1mV (500kHz ~ 30MHz)
4 Protection
Refer to Table 1 for the protection functions.
Table 1 Protection functions
Input overvoltage
protection
The module will send alarm and shutdown
when the input is above 305Vac; and recover
when the input drops down 300Vac
Input
undervoltage
protection
The module will send alarm and shutdown
when the input is below 85Vac; and recover
when the input increases above 90Vac
Output
overvoltage
protection
The protection point is 58.5 ~ 60.5Vdc. The
module will shutdown to lock upon the
overvoltage status. Restart the module after
the protection is removed
Current limit
protection
The module has current limit
protection:2900W (176 ~ 220Vac input);
1200W (90 ~ 175Vac input)
Short circuit
protection
The module has short circuit protection. The
module output 61A upon shortcircuit. The
module will recover when the fault is removed
Overtemperature
protection
The module will send alarm and shutdown
when the testing temperature is above 116°C;
and recovery when the temperature is under
110°C
The module will send alarm through alarm indicators upon input
over- and under- voltage, output over-voltage, and module fault.
5 Input And Output Connectors
EPW50-27A-E power module connects to user system through its
interfaces: AC input socket (FCI, 51939-021); DC output socket (FCI,
51939-022), which also serves as the signal interface. Their pin
locations are shown in Figure 1 and pin definitions are listed in
Table 2.
N
GND L
DC-Pre-Charge
DC+
PIN5
PIN16
PIN1
Figure 1 Pin location
Table 2 Pin definition
Pin Definition Function Contact sequence
AC input (FCI 51939-021)
See Fig.1 L Live line 2
See Fig.1 GND Protect earth 1
See Fig.1 N Neutral line 2
DC output (FCI 51939-022)
Pin1 Address bit 0 Address 3
Pin 2 Address bit 1 Address 3
Pin 3 Load share + Share bus 3
Pin 4 NC Not connected 4(reserved)
Pin 5 Current limit Current limit 3
Pin 6 Current limit Current limit 3
Pin 7 Address bit 2 Address 3
Pin 8 Address bit 3 Address 3
Pin 9 Load share - Share bus 3
Pin 10 +5V RS485 power+ 3
Pin 11 +5VGND RS485 power- 3
Free Datasheet http://www.datasheet4u.com/

Summary

Product Features

Module Capabilities

EPW50-48A-E module uses soft-switching, soft-start, regulated output, and parallel capability.

Environmental Specifications

Electrical Specifications

Input Electrical Parameters

Details rated input voltage, current, frequency, and power factor for the module.

Output Electrical Parameters

Details rated output voltage, power, efficiency, and noise characteristics.

Protection Functions

Input Protection

Covers overvoltage and undervoltage protection for module input.

Output and Current Protection

Details output overvoltage, current limit, and short circuit protection.

Overtemperature Protection

Describes the module's shutdown and recovery mechanism for high temperatures.

Input and Output Connectors

Connector Identification

Identifies AC input and DC output sockets and their pin locations.

Pin Definitions

Details the function and contact sequence for each pin on the module.

Installation and Operation

Installation Procedure

Step-by-step guide for installing the module into its slot.

Parallel Operation

Instructions for connecting multiple modules in parallel to share load.

Maintenance and Troubleshooting

Module Maintenance

Describes hot-swappable module replacement and lock mechanism.

Troubleshooting Guide

Provides guidance on diagnosing simple problems using indicator lights.

Overview

1. Function Description
2. Important Technical Specifications
3. Dimensions and Weight
4. Environmental Conditions
5. Input Electrical Specifications
6. Output Electrical Specifications
7. Protection Features
8. Usage Features
9. Connectivity
10. Parallel Operation
11. Address Configuration
12. Current Limit and Module Model Reporting
13. Installation
14. Maintenance Features
15. Hot-Swappable Design
16. Module Replacement Procedure
17. Troubleshooting
18. Safety and Warranty

The EPW30-48A-E Power Module is a sophisticated power supply unit designed for robust and reliable performance in various applications. It incorporates advanced soft-switching and input/output soft start-up technologies, ensuring efficient and stable operation. The module's output can be precisely regulated through monitoring, and it supports parallel operation, allowing multiple modules to share the load for increased power capacity and redundancy.

Function Description

The power module serves as a DC power source, converting AC input into a stable DC output. Its primary function is to provide regulated power to connected systems while offering comprehensive protection features. The module is designed to operate within a wide range of environmental conditions and offers various electrical specifications to meet diverse application requirements.

Important Technical Specifications

Dimensions and Weight:

• Dimensions (H x W x D): 88.2mm × 102.8mm (105.5mm with enclosure) x 242.3mm (excluding socket dimension)
• Weight: < 2.8kg

Environmental Conditions:

• Operation Temperature: -33 to 65°C
• Storage Temperature: -40 to 70°C
• Humidity: 5% to 95% (non-condensing)
• Air Pressure: 86 to 106 kPa
• Altitude: < 4000m
• Cooling: Fan cooling
• Vibration: Random vibration in 2 to 500Hz in three orthogonal axes, 30 minutes in each direction

Input Electrical Specifications:

• Rated Input: 200 to 240Vac / 115 to 130Vac
• Input Current: Max. 18.5A for single module
• Rated Frequency: 50 / 60Hz
• Power Factor: No less than 99% (rated operation condition)

Output Electrical Specifications:

• Rated Output: 53.5Vdc (output range: 43.2 to 57.6Vdc)
• Output Power: 2900W (176Vdc to 300Vdc) / 1200W (90Vdc to 175Vdc)
• Efficiency:
  • ≥ 92% (220Vac input and 53.5V/2900W output)
  • ≥ 86% (110Vac input and 53.5V/1200W output)
• Line Regulation: ≤ ± 1%
• Load Regulation: ≤ ± 1%
• Mains Regulation: ≤ ± 0.1%
• Psophometric Noise: ≤ 2mV
• Broadband Noise:
  • ≤ 100mV (3.4kHz to 150kHz)
  • ≤ 30mV (150kHz to 30MHz)
• Output Ripple (p-p): ≤ 200mV (0 to 20MHz bandwidth with load no less than 1A)
• Discrete Noise:
  • ≤ 5mV (3.4kHz to 150kHz)
  • ≤ 3mV (150kHz to 200kHz)
  • ≤ 2mV (200kHz to 500kHz)
  • ≤ 1mV (500kHz to 30MHz)

Protection Features:

The module incorporates comprehensive protection mechanisms to ensure safe and reliable operation:

• Input Overvoltage Protection: The module will alarm and shut down if the input voltage exceeds 305Vac, recovering when it drops below 300Vac.
• Input Undervoltage Protection: The module will alarm and shut down if the input voltage falls below 85Vac, recovering when it increases above 90Vac.
• Output Overvoltage Protection: Protection activates between 58.5Vdc and 60.5Vdc. The module will shut down and lock upon overvoltage, requiring manual reset after the condition is cleared.
• Current Limit Protection: Limits output power to 2900W (176-220Vac input) and 1200W (90-175Vac input).
• Short Circuit Protection: The module protects against short circuits, limiting output to 61A. It recovers automatically once the fault is removed.
• Overtemperature Protection: The module will alarm and shut down if the internal temperature exceeds 116°C, recovering when it drops below 110°C.
• Alarm Indicators: The module provides visual alarms (Green, Red, Yellow LEDs) for input over/under-voltage, output over-voltage, and module faults.

Usage Features

Connectivity:

The EPW50-27A-E power module connects to the user system via:

• AC Input Socket: FCI, 51939-021 (L, GND, N pins)
• DC Output Socket: FCI, 51939-022 (DC+, DC-, Pre-charge, Load share+, Load share-, Address bits 0-4, Address GND, Current limit, +5V, +5VGND, RS485+, RS485- pins)

Parallel Operation:

Multiple modules can be connected in parallel to share the load. This is achieved by connecting the output connectors and load sharing cables of the modules in parallel. The "Load share+" and "Load share-" pins are critical for this function and should be well-grounded and shorter than 0.5m.

Address Configuration:

The module's address (0-31) can be configured using Address bits 0-4. Suspending an address bit represents '0', while shorting it to GND represents '1'.

Current Limit and Module Model Reporting:

Pins 5 and 6 are used to limit the output current and report the module model. Shorting these pins from the backboard on the subrack causes the module to output according to the EPW50-48A characteristic and report "0x02". Otherwise, it outputs according to the EPW30-48A characteristic and reports "0x01".

Installation:

Installation is straightforward:

1. Ensure the module handle is open.
2. Insert the module into the designated slot.
3. Push the module until its interfaces contact the backboard.
4. Push the handle until the module is fully inserted and locked into the subrack.
5. Secure the handle with screws.

Maintenance Features

Hot-Swappable Design:

The module is hot-swappable, allowing for replacement of damaged units during system operation without interruption. This minimizes downtime and enhances system availability.

Module Replacement Procedure:

1. To remove, pull up the handle on the bottom of the module front panel and pull it out.
2. To install, insert the module smoothly along the slot until the lock structure engages.
3. The entire unit should be replaced if maintenance is required.

Troubleshooting:

The manual provides a basic troubleshooting guide based on LED indicators:

• Green LED Off: Indicates no AC input, damaged input fuse, module failure, or active protections. Action: Check loads, input voltage, input fuse, and fan.
• Red LED On: Indicates module shutdown fault. Action: Remove conditions raising protections.
• Yellow LED On: Indicates module temperature pre-alarm or monitoring module controlling the module to switch off. Action: Remove conditions raising protections.

For complex issues, users are advised to contact the nearest Emerson local sales office or service center rather than attempting self-repair. Faulty units should be returned to Emerson for repair.

Safety and Warranty:

• Fuse Replacement: For continued protection against fire risk, replace fuses only with the same type and rating.
• Fusing: Double pole / neutral fusing.
• Air Breaker: An air breaker (advisably 220V/32A or higher rating) should be installed upstream of the module.
• Warranty: 1 year.

The EPW30-48A-E Power Module is a reliable and efficient power solution, designed with ease of use, comprehensive protection, and maintainability in mind, making it suitable for demanding power applications.

Emerson EPW30-48A-E Specifications