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HomeProducts Controllers EZ-ZONE® RM Modules Watlow EZ-ZONE RM Multi-Loop Controller

Watlow EZ-ZONE RM Multi-Loop Controller

EZ-Zone RM
Watlow EZ-ZONE RM Multi-Loop Controller
The EZ-ZONE® RM controller family 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 one to 152 control loops and up to 256 monitor points.

User Manuals (EN): RMA, RMC, RME, RMH, RML, RMS
Manuel de l'Utilisateur (FR): RMA, RMC, RME, RMH, RML, RMS
Manual del Usuario (ES): RMA, RMC, RME, RMH, RML, RMS

Watlow: Your Heat Solutions Resource Brochure (EN)
Watlow: Vos Solutions de Chauffage Brochure (FR)
Back to EZ-ZONE® RM Modules
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Features
Specifications
Ordering information
Resources
Applications

Product Features

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 to 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
Multiple inputs; from one to 152 PID loops of control or monitor up to 256 analog inputs
  • Mix and match I/O to fit any application; from one input with two 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
  • Allows 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
AUTO CLONE
  • Reduces time and configuration complexity by automatically building a new module with the same parameter settings as the replaced module
Sensor Guard
  •  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 149°F (-18 to 65°C)
  • UL® listed, CSA, CE, RoHS, W.E.E.E., FM, SEMI F47-0200, Class 1, Div. 2 rating on selected models

Product Specifications

Serial Communications:
All modules ship with standard bus protocol for configuration and communication with all other EZ-ZONE products
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
Functional Operating Range:
  • RMC, RMH, RML and RMS
  • Type J: -346 to 2192°F (-210 to 1200°C)
  • Type K: -454 to 2500°F (-270 to 1371°C)
  • Type T: -454 to 750°F (-270 to 400°C)
  • Type E: -454 to 1832°F (-270 to 1000°C)
  • Type N: -454 to 2372°F (-270 to 1300°C)
  • Type C: 32 to 4200°F (0 to 2315°C)
  • Type D: 32 to 4200°F (0 to 2315°C)
  • Type F: 32 to 2449°F (0 to 1343°C)
  • Type R: -58 to 3214°F (-50 to 1767°C)
  • Type S: -58 to 3214°F (-50 to 1767°C)
  • Type B: 32 to 3300°F (0 to 1816°C)
  • RTD (DIN): -328 to 1472°F (-200 to 800°C)
  • Process: -1999 to 9999 units
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
Environment:
  • 0 to 149°F (-18 to 65°C) operating temperature
  • -40 to 185°F (-40 to 85°C) storage temperature
  • 0 to 90% RH, non-condensing
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
Mounting:
  • 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
Agency Approvals:
  • UL®/EN 61010 Listed, File E185611, 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
Programmable Application Blocks:
  • Compare: Greater than, less than, equal, not equal, greater than or equal, less than or equal
  • Counters: Counts up or down, loads predetermined value on the load signal. Output is active when the count value equals or exceeds predetermined target value
  • Linearization: Interpolated or stepped relationship
  • Logic: And, nand, or, nor, equal, not equal, latch, flip flop
  • Math: 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
  • Timers: 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
  • Variable: User value for digital or analog variable