GMI D5254S Isolators

I.S. SIL2 2/4-Wire Transmitter Trip Amplifier

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    SKU: D5254S, D5254 Categories: , Tags: ,

    Description

    The 2/4-Wire Transmitter Trip Amplifier D5254 provides a fully floating dc supply to energize conventional 2 wires 4-20 mA transmitters located in Hazardous Area; it also accepts 0/4-20 mA current input signals, as well as ±12 V voltage inputs from Hazardous Area. The module repeats/converts the input as on current signal, in a floating circuit to drive a Safe Area load, suitable for applications requiring SIL 2 in safety related systems for high risk industries. The output signal can be in direct or reverse form. Two independent Alarm Trip Amplifiers are also provided.

    FEATURES

    • SIL 2 / SC 3
    • Input from Zone 0/Div. 1
    • Installation in Zone 2/Div. 2
    • ±12 V Voltage Input
    • 0/4-20 mA Active-Passive Input, Source-Sink Output
    • Input and Output short circuit proof
    • Modbus RTU RS-485 for monitor & configuration
    • Out-of-range fault detection
    • Optional alarm acknowledgement input
    • Fully programmable operating parameters
    • High Accuracy, μP controlled A/D converter
    • Three port isolation, Input/Output/Supply

    Technical data

    Supply
    Type 24 Vdc nom (21.5 to 30 Vdc), reverse polarity protected.
    Current Consumption 110 mA @ 24 Vdc with 20 mA input/output and alarm relays energized, typical.
    Power Dissipation 2.3 W @ 24 Vdc with 20 mA input/output and alarm relays energized, typical.

    Input
    Type 0/4 to 20 mA (separately powered input, voltage drop ≤ 0.5 V) or 4 to 20 mA (2 wires Tx current limited ≈ 25 mA), or voltage input ±12 V.
    Integration time 100 ms.
    Input range 0 / +25 mA for current, ± 12 V for voltage.
    Transmitter line voltage 15.5 V typical, 15.0 V minimum, @ 20 mA.

    Acknowledgement input
    Type Logic level reverse polarity protected.
    Voltage range 0 V ≤ OFF ≤ 5 V, 18 V ≤ ON ≤ 30 V.
    Current Consumption 10 mA @ 24 Vdc, typical.

    Output
    Type Fully customizable 0/4 to 20 mA, on max. 300 Ω load source mode, current limited @ 25 mA.
    Transfer characteristic linear, direct or reverse, square root.
    Response time ≤ 100 ms (10 to 90% step change).

    Alarm
    Trip point range within rated limits of input sensor.
    Output two voltage free SPDT relay contacts.
    Contact rating 4 A 250 Vac 1000 VA, 4 A 250 Vdc 120 W (resistive load).
    DC and AC load breaking capacity refer to Instruction Manual.

    Modbus interface
    Type Modbus RTU RS-485 up to 115.2 kbps for monitor/configuration/control.

    Isolation
    Test Voltage I.S. In/Other 1.5 kV; Alarms/Other 1.5 kV; Alarm/Alarm 1.5 kV; Out/Supply 500 V; Out/Ack 500 V; Ack/Supply 500 V.

    Environmental conditions
    Operating temperature temperature limits –40 to +70 °C.
    Storage temperature temperature limits -45 to +80 °C.

    Safety description
    Equipment Associated apparatus and non-sparking electrical equipment.
    Safety parameters Uo = 26 V, Io = 91 mA, Po = 588 mW at terminals 13-14 Uo = 1.1 V, Io = 56 mA, Po = 16 mW at terminals 14-16 Uo = 1.1 V, Io = 0.012 mA, Po = 0.004 mW at terminals 15-16 Ui = 30 V at terminals 14-16 or 15-16, Ii = 128 mA at terminals 14-16, Ci = 2.1 nF, Li = 0 nH at terminals 13-14-15-16. Um = 250 Vrms or Vdc, -40 °C ≤ Ta ≤ 70 °C.

    Mounting
    Type DIN-Rail 35 mm, with or without Power Bus or on custom Term. Board.
    Weight about 120 g.
    Connection by polarized plug-in disconnect screw terminal blocks to accommodate terminations up to 2.5 mm² (13 AWG).
    Dimensions Width 22.5 mm, Depth 123 mm, Height 120 mm.

    Download

    Datablad Engelsk

    Instruktionsmanual, 5254S

    Instruktionsmanual, D5000 – D5200 Series

    G.M. International srl