Relay interface module low-volt in-built | BOSCH

• FLM‐420‐RLV1 Relay Interface Modules Low Voltage

• Maximum switching current of 5 A (type DIN rail) /1 A (type in-built)
• Low current consumption
• Maintains LSN loop functions in the event of wire interruption or short-circuit     thanks to two integrated isolators

The FLM‐420‐RLV1 Relay Interface Modules Low Voltage feature a changeover contact relay for providing a potential-free output contact.They are 2‐wire LSN elements. When connected to the fire panels FPA‐5000 and FPA‐1200, the interface module offers the enhanced functionality of LSN improved technology.

System Overview

Functions

The addresses of the interface modules are set using:
    • DIP switches for FLM‐420‐RLV1‐E
    • Rotary switches for FLM‐420‐RLV1‐D.
When connecting to the FPA-5000 Modular Fire Panel (LSN mode improved version), the operator can select automatic or manual addressing with or without auto-detection. In LSN mode classic, connection to the fire panels BZ 500 LSN, UEZ 2000 LSN and UGM 2020 is possible.

LSN features

Integrated isolators ensure that function is maintained in the event of a short circuit or line interruption in the LSN loop. A fault indication is sent to the fire panel.

Features of LSN improved version
The interface modules in the 420 series offer all the features of improved LSN technology:
• Flexible network structures including T‐tapping without additional                  elements
• Up to 254 LSN improved elements per loop or stub line
• Unshielded cable can be used
• Downwards compatible with existing LSN systems and control panels.

Interface variants

The input interface modules are available in various designs:
•  FLM‐420‐RLV1‐E type in-built:
      - Can be built in to standard device boxes in accordance with EN 60670
      - For space-saving installation in devices
• FLM‐420‐RLV1‐D type DIN rail:
     - For installation on a DIN rail in accordance with EN 60715 with included         adapter

    - Can be built in to a FLM‐IFB126‐S surface-mounted housing.

Certifications and Approvals

Complies with
• EN54-17:2005
• EN54-18:2005

Installation/Configuration Notes

• Can be connected to the fire panels FPA‐5000 and FPA‐1200 and the classic     LSN fire panels BZ 500 LSN, UEZ 2000 LSN and UGM 2020.
• Programming is done with the programming software of the fire panel.
• The connected device must have a minimum activation time of 20 ms.
• The LSN connection is established via the two wires on the LSN line.
• The in-built (-E) version is fitted with terminals to allow a second wire pair     to be looped through to the LSN power supply of subsequent elements.
• For a fire system operation according to EN 54‐2, the interface modules          used for the activation of fire protection equipment and whose outputs are      not monitored, must be installed directly next to or within the device which    shall be activated.

Parts Included

Technical Specifications

Electrical

Mechanical

Environmental conditions