EZ-ZONE® High-Density Limit Module (RML)

EZ-ZONE® High-Density Limit Module (RML)


High-Density Limit Module (RML)

(Select an RML module for 4 to 12 safety limits.)

Requires 24 to 28VAC/VDC power supply, includes communication port for configuration with EZ-ZONE configurator and PC.

    Line Voltage/Power

  • Power consumption: 7 W, 14VA
  • Any external power supply used should comply with a
  • Class 2 or SELV rating
  • Isolated Serial Communications

  • All modules ship with standard bus protocol for configuration and communication with all other EZ-ZONE controllers
  • Optional EIA 485, Modbus® RTU
  • Calibration Accuracy

  • ±0.1% of span, ±1°C. See user manual for details.
  • Universal Input

  • Thermocouple, grounded or ungrounded sensors
  • >20MΩ input impedance
  • Max. of 2kΩ source resistance
  • RTD 2-wire, platinum, 100Ω and 1000Ω @ 32°F (0°C) calibration to DIN curve (0.00385Ω/Ω/°C)
  • Process, 0-20mA @100Ω, or 0-10VDC @ 20kΩ input
  • impedance; scalable, 0-50mV

Thermistor Input

  • 0 to 40kΩ, 0 to 20kΩ, 0 to 10kΩ, 0 to 5kΩ
  • 2.252kΩ and 10kΩ base at 77°F (25°C)
  • Digital Input

  • Update rate 10Hz
  • Max. input 36VDC at 3mA
  • Min. high state 3VDC at 0.25mA
  • Dry Contact Input

  • Update rate 10Hz
  • Min. open resistance 10kΩ, max. closed resistance 50Ω
  • Output Hardware

  • 6 digital inputs/outputs:
  • Switched dc, max. 20VDC @ 40mA, 12VDC @ 80mA
  • Open collector, max. 32VDC @ 1.5A, max. 8A per
  • 6 outputs combined

  • Electromechanical relay, Form A, 5A, 24 to 240VAC or 30VDC max., resistive load, 100,000 cycles at rated load, requires a min. load of 20mA at 24V, 125VA pilot duty
  •  

    (4)Connector Style
    A=Right angle screw connector (standard)
    F=Front screw connector
    S=Custom

     

    (5)Slot A
    5=4 universal inputs (T/C, RTD 2-wire, 0-10VDC, 0-20mA) with limit control loops
    6=4 thermistor inputs with limit control loops

     

    (6)Slot B
    A=None
    5=4 universal inputs (T/C, RTD 2-wire, 0-10VDC, 0-20mA) with limit control loops
    6=4 thermistor inputs with limit control loops

     

    (7)Slot D
    A=None
    5=4 universal inputs (T/C, RTD 2-wire, 0-10VDC, 0-20mA) with limit control loops
    6=4 thermistor inputs with limit control loops
    J=4 mechanical relay 5A, Form A
    C=*6 digital I/O

     

    (7)Slot E
    J=4 mechanical relay 5A, Form A
    B=*1 digital input and 2 mechanical relays, 5A (1 Form A and
    1 Form C)

     

    (10)Enhanced Options
    A=Standard Bus
    1=Standard Bus and Modbus® RTU 485* (user-selectable)

     

    (11)(12)Additional Options
    AA=Standard
    AB=Replacement connectors hardware only for the entered model number
    XX=Custom

    *Reset limits via digital input, EZ key on RUI or communications commands.