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.
Back to Integrated Multi Function Controllers

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
  • 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
  • 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
  • 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