MIDI 55

Product Overview

Compact Emergency LED Driver

The ELEDD MIDI 55 range of LED emergency modules has been designed to enable conversion of general lighting for emergency operation.

Each variant has controlled current SELV compliant outputs, suitable for driving multiple power LEDs or multi-chip LED arrays with forward voltages (Vf) of 6V to 55V, and built-in adaptability that allows for optimum output current based on the forward voltage of the specific light engine for a more precise match to the controlled LED scheme. The range includes options for DALI AutoTest with a choice of NiCd or NiMH batteries to drive 3-hour rated emergency duration.

Related Downloads

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Related Downloads

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MIDI 55 Technical Specifications

Specifications

Supply voltage230 V

Supply frequency50/60 Hz

Supply current (max)25 mA

Power factor0.5 - 0.7

Output voltage6 to 55 V

Total circuit power (max)

Total circuit power (nominal)

Ambient temperature (ta) 0°C to +55°C

Max case temperature (tc)+70°C

Conductor size0.2 to 1.5mm²

Battery charge current - NiCd (4.5Ah)200 mA

Battery charge current - NiCd (2Ah)95 mA

Battery charge current - NiMH (4Ah)200 mA

Battery charge current - NiMH (2.2Ah)95 mA

Battery discharge current

Battery charge voltage

Battery discharge voltage

Emergency duration3 hours

Recharge period24 hours

Weight of control gear83g

Features
SmartCharge™
SmartCharge™ applies an intermittent charging duty cycle designed for use with NiMH batteries. This provides energy efficient charging maintenance, reduced operating temperatures and optimum service life of NiMH batteries.
Technology Options
Standard
For applications where self-testing is not required or suitable, the non-AutoTest® option provides the same quality and performance expected of Mackwell products, without the AutoTest® feature.

DALI AutoTest®
Provides benefits by enabling testing and monitoring of an emergency lighting system either on-site or via an internet connection. DALI AutoTest® is ideal for monitoring larger buildings and multiple sites. The product defaults to standalone AutoTest when not connected to a DALI network.
Relevant Standards
  • EN 61347-2-7
  • EN 61347-2-13
  • EN 60598-2-22
  • BS 5266-1
  • EN 62034
  • EN 62386
  • EN 62384
  • ICEL 1004
Batteries
ELEDD MIDI 55 is available with a range of rechargeable battery options. For details on compatible batteries, see the compatibility chart on the final page of the datasheet. For 1 hour emergency operation, please contact Mackwell for further details.

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MIDI 55 Product Ranges

Standard
Order Code Description
9005333 ELEDD MIDI 55V 2W with NiCd 
9006139 ELEDD MIDI 55V 3W with NiCd
9005344 ELEDD MIDI 55V 3W with NiMH
9005358 ELEDD MIDI 55V 4W with NiCd
9005360 ELEDD MIDI 55V 4W with NiMH
DALI
Order Code Description
9005335 ELEDD MIDI 55V 2W with NiCd & DALI
9005346 ELEDD MIDI 55V 3W with NiCd & DALI
9005348 ELEDD MIDI 55V 3W with NiMH & DALI
9005362 ELEDD MIDI 55V 4W with NiCd & DALI
9005364 ELEDD MIDI 55V 4W with NiMH & DALI
 
Batteries
Order Code Description
9005247 4C 2Ah NiCd Stick Battery
9001642 4C 4Ah NiCd Stick Battery
9001652 3C 4.5Ah NiCd Stick Battery
9001664 3C 4Ah NiMH Stick Battery
9001666 2+2C 4Ah NiMH Twin Stick Battery
LED Indicators
Order Code Description
9001715 520mm Diffused Bi-Colour LED Complete with Bezel
9001737 520mm Diffused Green LED Complete with Bezel

* Other variants may be available on request. Contact your Mackwell sales representative for further information.

Key Features

  • Auto load detecting
  • DALI functionality option
  • Compatible with leading brands of mains drivers
  • SmartChargeTM technology for NiMH batteries
  • Test-switch function
  • Battery deep-discharge protection
  • Compatible with NiMH or NiCd batteries
  • 3 hour emergency duration
  • SELV output

EOF Calculator

Required Information

In order to choose the appropriate ELEDD MIDI for a conversion project, certain values will need to be determined beforehand. You can use the below EOF Calculator to help you to work out the LED Emergency Output Factor (EOF).

Approx. Emergency Power
* Required
Input Power
* Required
Want A More Accurate Calculation?

The following information is useful when choosing an emergency conversion module: 1. Luminaire Input Power, 2. Emergency Output Factor (EOF) when driving an entire LED array, 3. LED parameters of the luminaire and 4. Luminous flux (lumens) required in emergency operation. It is likely that you will not have all of this information so, this handy calculator will help you in choosing the most appropriate product for your needs, based on the information you have available. The more information you input, the more accurate your calculation will be. Simple!

Least Accurate

Look at this section to determine a more accurate emergency BLF for conversion of a partial LED array, based on calculations that determine the emergency flux from a specific set of figures including module performance, and lamphead voltage/current/flux characteristics in mains mode.

Lamphead Power
* Required
Calculate EOF
More Accurate

Look at this section to determine a more accurate emergency BLF for conversion of a partial LED array, based on calculations that determine the emergency flux from a specific set of figures including module performance, and lamphead voltage/current/flux characteristics in mains mode.

Lamphead VF - Volts (V)
* Required
Lamphead IF - Amps (A)
* Required
Calculate EOF
Most Accurate
(Entire LED Array Conversion)

Look at this section to determine a more accurate emergency BLF for conversion of a partial LED array, based on calculations that determine the emergency flux from a specific set of figures including module performance, and lamphead voltage/current/flux characteristics in mains mode .

Emergency LED Current

This figure is determined by taking data from the corresponding ELEDD MIDI product datasheet. Read from the graphs of emergency LED current based on connected emergency lamphead VF.

* Required
Lamphead VF - Volts (V)
* Required
Lamphead IF - Amps (A)
* Required
Mains Flux
* Required
Calculate EOF
Most Accurate
(Partial LED Array Conversion)

Look at this section to determine a more accurate emergency BLF for conversion of a partial LED array, based on calculations that determine the emergency flux from a specific set of figures including module performance, and lamphead voltage/current/flux characteristics in mains mode.

Emergency LED Current

This figure is determined by taking data from the corresponding ELEDD MIDI product datasheet. Read from the graphs of emergency LED current based on connected emergency lamphead VF.

* Required
Emergency Lamphead VF - Volts (V)
* Required
Lamphead VF - Volts (V)
* Required
Lamphead IF - Amps (A)
* Required
Mains Flux
* Required
Calculate EOF
Back to Start

Emergency Flux :

Emergency BLF :

Back to Start

* Note: This calculator is provided as a guide. Please consult the relevant product documentation to ensure compatibility, or contact mackwell for further information.

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For more information, please call us on +44 (0) 1922 458 255 or send us a message below.


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