We are using cookies on this web site to provide a in order to provide you the best online experience.

More about data procetion, and a link to the inmpressum (both in German).

Neuwert-Erstwertmelder LSE
Description
Function diagram
Schematic
Programming
Dimensions
Technical data
Downloads
Link to the successor model
New value/First-up indicator LSE





LSE Important information regarding the LSE new value / First-up indicator

  • This version is no longer produced, the current version can be found here






  • Description

    General

    The LSE New value/First-up indicator is designed to signalise technical faults according to the DIN 19235 sequence. You may choose between New value or First-up indication. The units are front mounted in a standard cut-out. All electrical connections are realised by plug-in screw terminals on the back of the unit. Therewith, unit changes and mensurations are easily to realise. To build larger systems with a higher amount of inputs than a single device offers, it is possible to connect up to twelve units. The front is equipped with 8 or 16 red alarm LED's and one green LED to indicate the normal condition. In addition to this, buttons for the lamp test, alarm acknowledgement, horn acknowledgement and a buzzer are built in. The acknowledgement and lamp test can also be realised by external buttons. The unit provides one potential free contact (NO) for the audible device / horn and two contacts (NO) for group and common alarm with the same potential. The supply- and signal voltage is available in many different varieties. As an option the units are available with output relays. It is also possible to produce the Common Alarm Indicator without buttons and buzzer or with a time delay for all inputs.



    Function

    New value indication
    Each incoming alarm is indicated by the corresponding visual indicator flashing. At the same time the relay output is activated for an audible alarm (connectors 3 and 4) When the lamp acknowledgement button is pressed, the visual indicator changes from flashing to continuous light, when the alarm still persists. If a further alarm occurs after the horn has been acknowledged but before lamp acknowledgement, the horn remains inactive and the visual indicator flashes until lamp acknowledgement. If the alarm has meanwhile disappeared, the visual indicator goes out. The audible alarm is acknowledged separately.

    First-up indication
    If several alarms arrive, only the alarm which has occurred first is indicated by flashing light. If the alarm becomes inactive before the lamp is acknowledged, the indicator flashes until the lamp is acknowledged, then it turns off. If another alarm arrives after the horn is acknowledged but before lamp acknowledgement, the horn is reactivated. All other alarms are indicated by continuous light as long as they persist. At the same time the relay output is activated for an audible alarm (connectors 3 and 4).

    Common alarm
    The function of the common alarm relay can be programmed as followed:

    DIP switch 7 off / DIP switch 8 off
  • Dynamic static, with each incoming alarm the common alarm relay is activated in step with the flashing frequency until lamp acknowledgement. After acknowledging the alarm, the indicator changes to continuous light until the alarm disappears. With each new alarm the relay is activated until lamp acknowledgement.

  • DIP switch 7 on / DIP switch 8 off
  • Static, the common alarm relay is activated by the first alarm to arrive and stays active until the last alarm disappeared

  • DIP switch 7 off / DIP switch 8 on
  • Static until LQ, the common alarm relay is activated by the first alarm to arrive and stays active until lamp acknowledgement. With each new alarm the relay is activated until lamp acknowledgement.

  • DIP switch 7 on / DIP switch 8 on
  • Dynamic until LQ, with each incoming alarm the common alarm relay is activated in step with the flashing frequency until lamp acknowledgement. With each new alarm the relay is activated until lamp acknowledgement.

  • Group alarm
    The group alarm relay is active as long as a signal input of the own device is active. The relay switches off when all signal inputs of the unit are off.

    Lamp test
    The lamp test button activates all LED's for about 4 seconds. If several units are connected together the lamp test is overlapping.

    Audible device / horn
    The internal buzzer and the horn relay are activated by the signal inputs.
    The relay stays active until acknowledgement even when the signal inputs went off meanwhile. Acknowledgement is possible with the HQ button or an external switch.

    Signal inputs
    The signal inputs can be changed in two groups from NO normally open to NC normally closed with the DIP switch No. 3 and 4. Units with 8 signal inputs have two groups of 4 inputs, units with 16 signal inputs have two groups of 8 inputs which can be programmed.

    Output relays (optional)
    The output relays are connected to the signal input carrying the same number. The function can be programmed with the DIP switches 5 and 6 as followed:

    DIP switch 5 off / DIP switch 6 off
  • Relays remain activated until acknowledgement

  • DIP switch 5 on / DIP switch 6 off
  • Relays as an image of the visual indicator (change blinking, static)

  • DIP switch 5 off / DIP switch 6 on
  • Relays as an image of the signal input

  • DIP Switch 5 on / DIP Switch 6 on
  • Relays without function






  • Function diagram


    New value indicator
    LSE



    First-up indicator

    LSE




    Schematic


    Please click on the image for a larger view or go to the download of the wiring diagram sheet

    New value/First-up indicator with 8 inputs / LED and external signal voltage
    LSE

    New value/First-up indicator with 16 inputs / LED and external signal voltage
    LSE

    New value/First-up indicator with 8 inputs / LED and internal signal voltage
    LSE

    New value/First-up indicator with 16 inputs / LED and external internal voltage
    LSE

    Parallel connection

    To build larger systems, it is possible to connect up to twelve units. The alarm acknowledgement, the horn acknowledgement, the lamp test, the common alarm relay and the horn are activated overlapping. The connectors are used as follows:

    Connector 26: Alarm acknowledgement (external and overlapping)
    Connector 27: Horn acknowledgement (external and overlapping)
    Connector 28: Lamp test (external and overlapping)
    Connector 29: Synchronisation of the blinking frequency (DIP-switch 2 must be set "on" on one unit, all others "off")
    Connector 30: First value signalisation (only when using "first-up" sequence)
    Connector 31: Common alarm relay activation
    Connector 32: Horn activation
    Connector 33: Ground





    Programming


    The programming of the LSE New value/First-up indicator is effected by a DIP-switch as followed:

    LSA

    Please note that it is necessary to switch off and on the supply voltage to activate the programm!




    Dimensions

    LSE Massbild

    H B H1 B1 ET T1 T2
    144 mm 72 mm 136 mm 65 mm 164 mm 154 mm 8.5 mm





    Technical data

    Amount of signal inputs 8 / 16
    Type of signal inputs Changeable between NO/NC in two groups
    Supply voltage nom. 24VDC24VAC60VDC 110VDC230VAC
    Supply voltage range 20-30VDC 22.5-30VAC51-78VDC 93-127VDC 207-253VAC
    Power consumption 6.3W6.3VA13W11W 11 /VA
    Frequency (AC units) 40-60Hz
    Signal voltage nominal 24VDC24VAC 60VDC 110VDC 230VAC
    Signal voltage tolerance 18-30VDC 18-30VAC51-78VDC 93-127VDC 170-250VAC
    LED colours Red / special colours on request
    Blink frequency 2Hz
    Switching capacity relays H/Gr/Sa AC:1000VA / DC:300W
    Switching capacity relays M1-M16 AC:250VA / DC:125W
    Ambient temperature -20 - +65°C
    Mounting position Any
    Protection class Housing: IP40 / Connectors: IP20
    Connectors Plug-in screw terminals 4mm² (2x1.5mm²)
    Weight 800g to 1400g
    Dimensions WxHxD 144x72x164mm
    Front panel cut-out 138x68mm





    Downloads