Watlow EZ-ZONE RMH Manual de usuario descargar pdf (Pagina 7)

Watlow EZ-ZONE

RMH Module • 4 • Chapter 1 Overview

Introduction

The EZ-ZONE

RM High Density (RMH) control

module provides multi-loop (4 to 16 loops) PID control

in a small footprint. The RMH takes the pain out of

solving your thermal loop requirements as a stand-

alone module or in applications that require distrib-

uted control.

It just got a whole lot easier to solve the thermal

requirements of your system. The RMH module is

provided in a space-saving, rail-mount package and

is highly scalable where you only pay for what you

need. For those applications that require the abil-

ity to configure/monitor the control over a network,

Modbus RTU communications is an option. Other

communications protocols are also available (e.g.,

EtherNet/IP, DeviceNet, Modbus TCP and Profibus

DP) when used in conjunction with an RMA module

or when using a Remote User Interface/ Gateway

(RUI/GTW).

Standard Features and Benefits

PID controller

• Provides two mounting options (DIN rail, chassis

mount)

• Reduces wiring time and termination complexity

compared to connecting discrete products

• Reduces panel space and installation cost

Communication Capabilities

• Supports network connectivity to a PC or PLC

• Watlow Standard Bus or Modbus

RTU

• Provides plug and play capabilities with basic Re-

mote User Interface (RUI’s)

• SpecView for Watlow used over standard bus com-

munications

• Free standard bus communications port and free

PC software (EZ-ZONE Configurator)

Additional Control Integration Options

• Includes programmable timer functions

• Includes programmable counter functions

• Allows for simple math and logic programming op-

tions

Advanced PID Control Algorithm

• Offers TRU-TUNE

+ adaptive control to provide

tighter control for demanding applications

• Provides auto-tune for fast, efficient startup

Integrated Thermal Loop Diagnostics

• Users can easily tell that the entire thermal sys-

tem is functioning properly

• Provides complete system diagnostics that are far

superior to simple discrete level diagnostics

• Allows for flexible synergistic use of hardware,

such as using one loop's sensor as a backup to an-

other loop in the event of sensor failure.

• Helps prevent load loss or allow for maintenance

to be scheduled when more convenient.

• Provides notification of system problems to help

reduce maintenance and service costs

Off-the-Shelf Designed System Solution

• Improves system reliability with a factory inte-

grated solution that minimizes inter-module con-

nections and potential problems at screw termina-

tion points.

• Reduces installation cost

• Eliminates compatibility headaches often encoun-

tered with using many different components and

brands

Controller Handles High Ambient Tempera-

tures

• Operates in an unprecedented temperature range

of -18 to 65°C (0 to 149°F) for cabinets and panel

enclosures with elevated temperature levels

Memory for Saving and Restoring User-De-

fined Parameter Default Settings

• Allows customers to save and restore their own

defined defaults for machine parameter settings

• Reduces service calls and downtime due to inad-

vertent end user parameter adjustments

Modules Allow for Greater Design Flexibility

• Allows PID loops to be added in increments of

four. Module can scale from 4 to 16 total loops

• Saves money because you do not pay for any more

than you need and don’t settle for any less func-

tionality than you need

Synergistic Module Control

• Allows outputs selected for control (heat/cool),

alarms or events to be located in any physical

module, regardless of which module is connected

to the input sensor

Split-Rail Control

• Allows modules to be mounted together or mount-

ed remotely from one another

• Shares control operation via Synergistic Module

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