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EZ-ZONE® RM Control Module

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The EZ-ZONE® RM controller simplifies thermal system management. The EZ-ZONE RM controller family is comprised of six module types: an integrated on-off or PID control, monitoring and over/under temperature limit module, a high-density on-off or PID control module, a high-density limit only module, an input/output (I/O) expansion module, a high-density monitor/scanner module and a data logging and field communications access module. A system is configured by connecting any combination of module types to address specific application needs. The EZ-ZONE RM is extremely flexible and scalable allowing mixing and matching of I/O to configure 1 to 152 control loops and up to 256 monitor points.

Optional integrated controller functions can be combined or ordered in different quantities:
  • PID control loops
  • Over/under temperature limit control loops
  • 10 and 15 ampere power output/heater driver options
  • On-board data logging
  • Current measurement input
  • Sequencer start up and control function
  • Programmable timer and counter functions
  • Programmable math and logic options
  • Multiple communication protocol options
  • Mobile configuration with removable secure digital (SD) flash card
Benefits of using an integrated controller solution:
  • Reduces wiring time and termination complexity compared with connecting multiple discrete products
  • Improves system reliability
  • Reduces termination and installation cost
  • Eliminates compatibility issues often encountered with using various discrete components and brands
  • Reduces troubleshooting time and downtime costs because the system can specifically identify any problems with a sensor, controller, solid state relay (SSR) power output or heater load
  • Complete thermal solution saves engineering time and labor costs while shortening project schedules

EZ-ZONE® RM High-Density Limit Module

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Dimensional Drawing of EZ-ZONE® RM

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Features and Benefits · Additional Key Functions · Common Specifications (Applies to all models) · Programmable Application Blocks · Control Module Specifications (RMC)

Features and Benefits

Multiple inputs; from 1 to 152 PID loops of control or monitor up to 256 analog inputs
  • Mix and match I/O to fit any application; from 1 input with 2 outputs to 152 analog inputs with 152 outputs, or monitor up to as many as 256 analog inputs all in one system
  • Reduces cost because only required loops are purchased
  • Allows a common controller platform across many design applications as both loops and outputs can be ordered in single increments
Advanced PID control algorithm
  • Offers TRU-TUNE®+ adaptive control to provide tighter control for demanding applications
  • Enables auto-tune for fast, efficient start-up
Communication capabilities
  • Provides a range of protocol options including universal serial bus (USB) device port, Modbus® RTU, EtherNet/IP™, Modbus® TCP, DeviceNet™ and PROFIBUS
USB Port
  • Provides data log retrieval
SPLIT-RAIL control
  • Enables modules mounted in separate high-voltage and low-voltage cabinets to function as an integrated system
  • Minimizes the length and cost of wire runs and improves system reliability by locating inputs closer to sensors and outputs closer to loads
  • Reduces time and configuration complexity by automatically building a new module with the same parameter settings as the replaced module
  • Prevents unplanned process shutdowns and product loss by switching to a backup sensor if the primary sensor fails

Additional Key Functions

  • Configuration communication port (standard bus)
  • Removable modules and connectors
  • Ring lug and front-screw terminal options
  • Profile ramp soak with 400 total steps
  • Retransmit and remote set point input virtually inside
    controller eliminating costs for input/output hardware
  • User configuration settings can be stored and recalled
  • Thermistor input
  • Elevated operating range of 0 to 149ºF (-18 to 65ºC)
  • UL® listed, CSA, CE, RoHS, W.E.E.E. FM, SEMI F47-0200, Class 1, Div. 2 rating on selected models

Common Specifications (Applies to all models)

Line Voltage/Power
  • 20.4 to 30.8VAC/VDC, 50/60Hz ±5%
  • Any external power supply used should comply with a Class 2 or SELV rating (see specific module specification listing for max. VA power consumption)
  • Data retention upon power failure via non-volatile memory
  • Compliant with Semi F47-0200, Figure R1-1 voltage sag requirements
  • 0 to 149ºF (-18 to 65ºC) operating temperature
  • -40 to 185ºF (-40 to 85ºC) storage temperature
  • 0 to 90% RH, non-condensing
Functional Operating Range for RMC, RMH, RML and RMS
Type J: -346 to 2192ºF (-210 to 1200ºC)
Type K: -454 to 2500ºF (-270 to 1371ºC)
Type T: -454 to 750ºF (-270 to 400ºC)
Type E: -454 to 1832ºF (-270 to 1000ºC)
Type N: -454 to 2372ºF (-270 to 1300ºC)
Type C: 32 to 4200ºF (0 to 2315ºC)
Type D: 32 to 4200ºF (0 to 2315ºC)
Type F: 32 to 2449ºF (0 to 1343ºC)
Type R: -58 to 3214ºF (-50 to 1767ºC)
Type S: -58 to 3214ºF (-50 to 1767ºC)
Type B: 32 to 3300ºF (0 to 1816ºC)
RTD (DIN): -328 to 1472ºF (-200 to 800ºC)
Process: -1999 to 9999 units

Agency Approvals
  • UL®/EN 61010 Listed, C-UL® C22.2 #61010ANSI/ISA 12.12.01-2007 Class 1, Div. 2-Group A, B, C, D temperature code T4 (optional)
  • UL® 1604 Class 1, Div. 2 (optional)
  • EN 60529 IP20
  • UL® 50, NEMA 4X, EN 60529 IP66; 1/16 DIN remote user interface (RUI)
  • CSA 610110 CE
  • RoHS by design, W.E.E.E.
  • FM Class 3545 on limit control versions
  • CE
Serial Communications
  • All modules ship with standard bus protocol for configuration and communication with all other EZ-ZONE products
Implicit Messaging
Number of data members accessible through implicit messaging

User Interface
  • Seven-segment LED, address/protocol indicator programmed via push button switch
  • Communication activity, 2 LEDs
  • Error condition of each loop, 4 LEDs
  • Output status indication, 16 LEDs
Maximum System Configuration
  • One access module plus up to 16 additional control or expansion modules (any combination), up to 152 loops
  • DIN-rail specification EN50022, 1.38 x 0.30 in. (35 x 7.5 mm)
  • DIN-rail mounted or chassis mounted with customer supplied screws
Wiring Termination - Touch-Safe Terminals
  • Right angle and front screw type terminal blocks (slots A, B, D, E)
  • Input, power and controller output terminals, touch safe, removable, 12 to 30 AWG

Programmable Application Blocks

  • Greater than, less than, equal, not equal, greater than or equal, less than or equal
  • Counts up or down, loads predetermined value on the load signal. Output is active when the count value equals or exceeds predetermined target value
  • Interpolated or stepped relationship
  • And, nand, or, nor, equal, not equal, latch, flip flop
  • Average, process scale, deviation scale, differential (subtraction), ratio (divide), add, multiply, absolute difference, min., max., square root, sample and hold, altitude and dew point
Process Value
  • Sensor backup, average, crossover, wet/dry bulb, switch over, differential (subtraction), ratio (divide), add, multiply, absolute difference, min., max., square root, altitude, visala and dew point
Special Output Function
  • Compressor - turns on-off compressor for one or two loops (cool and dehumidify with single compressor)
  • Motorized valve - turns on-off motor open/closed outputs causing valve to represent desired power level
  • Sequencer - turns on-off up to four outputs to distribute a single power across all outputs with linear and progressive load wearing
  • On pulse - produces an output of fixed time on the active edge of timer run signal
  • Delay - output is a delayed start of timer run and off at same time
  • One shot - oven timer
  • Retentive - measures timer run signal and output on when accumulated time exceeds target
  • User value for digital or analog variable

Control Module Specifications (RMC)

(Select an RMC module for 1 to 4 loops of control.)
Line Voltage/Power
  • Power consumption: 7 W, 14VA
  • Any external power supply used should comply with a Class 2 or SELV rating
  • User-selectable heat/cool, on-off, P, PI, PD, PID or alarm action, not valid for limit controllers
Process PID or Over-temperature Limit Mode Options
  • Auto-tune with TRU-TUNE+ adaptive control
  • Control sampling rates: input = 10Hz, output = 10Hz (non-divisional)
Serial Communications
  • Isolated communications
  • All modules ship with standard bus protocol for configuration and communication with all other EZ-ZONE controllers
Additional Communication Option
  • EIA 485, Modbus® RTU
Profile Ramp and Soak (RMC only, not available with high-density controller)
  • Profile engine affects one to four loops
  • 25 profiles and 15 sub-routines, 400 steps total
  • Option for battery backup and real time clock is via the access module
Calibration Accuracy
  • Calibration accuracy and sensor conformity: ±0.1% of span, ±1ºC @ the calibrated ambient temperature and rated line voltage
    • Types R, S, B; 0.2%
    • Type T below -50ºC; 0.2%
  • Calibration ambient temperature @ 77ºF ±5ºF (25ºC ±3ºC)
  • Accuracy span: 1000ºF (540ºC) min.
  • Temperature stability: ±0.1ºF/ºF (±0.1ºC/ºC) change in ambient
Universal Input
  • Thermocouple, grounded or ungrounded sensors
  • >20MΩ input impedance
  • Max. of 2kΩ source resistance
  • RTD 2- or 3-wire, platinum, 100Ω and 1000Ω @ 32ºF (0ºC) calibration to DIN curve (0.00385Ω/Ω/ºC)
  • Process, 0-20mA @100Ω, or 0-10VDC @ 20kΩ input impedance; scalable, 0-50mV
  • Potentiometer: 0 to 1,200Ω
  • Inverse scaling
  • Current: input range is 0 to 50mA, 100Ω input impedance
    Response time: 1 second max., accuracy ±1mA typical
Thermistor Input
  • 0 to 40kΩ, 0 to 20kΩ, 0 to 10kΩ, 0 to 5kΩ
  • 2.252kΩ and 10kΩ base at 77ºF (25ºC)
  • Linearization curves are built-in
Digital Input
  • Update rate 10Hz
  • DC voltage
  • Max. input 36V at 3mA
  • Min. high state 3V at 0.25mA
  • Max. low state 2V
Dry Contact Input
  • Update rate 10Hz
  • Min. open resistance 10kΩ
  • Max. closed resistance 50Ω
  • Max. short circuit 13mA
Current Measurement Input
  • Accepts 0-50mA signal (user programmable range)
  • Displayed operating range and resolution can be scaled and are user programmable
Output Hardware
  • Switched dc:
    • Max. 32VDC open circuit
    • Max. current 30mA per single output
    • Max. current 40mA per paired outputs (1 & 2, 3 & 4, 5 & 6, 7 & 8)
  • Open collector:
    • Max. 30VDC @ 100mA
  • 6 digital inputs/outputs:
    • Switched dc, max. 20VDC @ 40mA, 12VDC @ 80mA
    • Open collector, max. 32VDC @ 1.5A, max. 8A per 6 outputs combined
  • SSR, Form A, 1A at 50ºF (10ºC) to 0.5A at 149ºF (65ºC), 0.5A @ 24VAC min., 264VAC max., opto-isolated, without contact suppression
  • Electromechanical relay, Form C, 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
  • 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
  • NO-ARC relay, Form A, 15A @ 122ºF (50ºC), 85 to 264VAC, no VDC, resistive load, 2 million cycles at rated load
  • Universal process/retransmit, output range selectable:
    • 0 to 10VDC ±15mV into a min. 1,000Ω load with 2.5mV nominal resolution
    • 0 to 20mA ±30µA into max. 800Ω load with 5µA nominal resolution
    • Temperature stability is 100ppm/ºC


· Connector Type Table

· Ring Terminal Connectors of EZ-ZONE® RM

· Front-Screw Connectors of EZ-ZONE® RM

· Standard Connectors of EZ-ZONE® RM

· Implicit Messaging