Watlow EZ-ZONE RMH User Manual

ISO 9001

EZ-ZONE® RM High Density Module

User’s Guide

0600-0074-0000 Rev. E Made in the U.S.A.

RM High Density Module

1241 Bundy Boulevard., Winona, Minnesota USA 55987

Phone: +1 (507) 454-5300, Fax: +1 (507) 452-4507 http://www.watlow.com

TOTAL

CUSTOMER

SATISFACTION

3 Year Warranty

Registered Company

Winona, Minnesota USA

December 2013

Safety Information

We use note, caution and warning symbols throughout this

book to draw your attention to important operational and safety information.

A “NOTE” marks a short message to alert you to an important detail.

A “CAUTION” safety alert appears with information that is important for protecting your equipment and performance. Be especially careful to read and follow all cautions that apply to your application.

A “WARNING” safety alert appears with information that is important for protecting you, others and equipment from damage. Pay very close attention to all warnings that apply to your application.

The safety alert symbol, (an exclamation point in a triangle) precedes a general CAUTION or WARNING statement.

The electrical hazard symbol, (a lightning bolt in a triangle) precedes an electric shock hazard CAUTION or WARNING

safety statement. Further explanations follow:

Symbol Explanation

CAUTION – Warning or Hazard that needs further explanation than label on unit can provide. Consult User's Guide for further information.

ESD Sensitive product, use proper grounding and handling techniques when installing or servicing product.

Unit protected by double/reinforced insulation for shock hazard prevention.

Do not throw in trash, use proper recycling techniques or consult manufacturer for proper disposal.

Enclosure made of Polycarbonate material. Use proper recycling techniques or consult manufacturer for proper disposal.

Unit can be powered with either alternating current (ac) voltage or direct current (dc) voltage.

Unit is a Listed device per Underwriters Laboratories®. It has been evaluated to United States and Canadian requirements for Process Control Equipment. UL 61010 and CSA C22.2 No. 61010. File E185611 QUYX, QUYX7. See: www.ul.com

Unit is a Listed device per Underwriters Laboratories®. It has been evaluated to United States and Canadian requirements for Hazardous Locations Class 1 Division II Groups A, B, C and D. ANSI/ISA 12.12.01-2007. File E184390 QUZW, QUZW7. See:

www.ul.com

Unit is compliant with European Union directives. See Declaration of Conformity for further details on Directives and Standards used for Compliance.

Unit has been reviewed and approved by Factory Mutual as a Temperature Limit Device per FM Class 3545 standard. See: www.

fmglobal.com

Unit has been reviewed and approved by CSA International for use as Temperature IndicatingRegulating Equipment per CSA C22.2 No. 24. See: www.csa-inter-

national.org

Warranty

The EZ-ZONE® RM High Density module is manufactured by ISO 9001-registered processes and is backed by a three-year warranty to the first purchaser for use, providing that the units have not been misapplied. Since Watlow has no control over their use, and sometimes misuse, we cannot guarantee against failure. Watlows' obligations hereunder, at Watlows' option, are limited to replacement, repair or refund of purchase price, and parts which upon examination prove to be defective within the warranty period specified. This warranty does not apply to damage resulting from transportation, alteration, misuse or abuse. The purchaser must use Watlow parts to maintain all listed ratings.

Technical Assistance

If you encounter a problem with your Watlow controller, review your configuration information to verify that your selections are consistent with your application: inputs, outputs, alarms, limits, etc. If the problem persists, you can get technical assistance from your local Watlow representative (see back cover), by e-mailing your questions to wintechsupport@watlow.com or by dialing +1 (507) 494-5656 between 7 a.m. and 5 p.m., Central Standard Time (CST). Ask for for an Applications Engineer. Please have the following information available when calling:

• Complete model number

• All configuration information

• User’s Guide

• Factory Page

Return Material Authorization (RMA)

1. Call Watlow Customer Service, (507) 454-5300, for a Return Material Authorization (RMA) number before returning any item for repair. If you do not know why the product failed, contact an Application Engineer or Product Manager. All RMA’s require:

• Ship-to address

• Bill-to address

• Contact name

• Phone number

• Method of return shipment

• Your P.O. number

• Detailed description of the problem

• Any special instructions

• Name and phone number of person returning the product.

2. Prior approval and an Return Merchandise Authorization number from the Customer Service Department is required when

returning any product for credit, repair or evaluation. Make sure the Return Merchandise Authorization number is on the outside of the carton and on all paperwork returned. Ship on a Freight Prepaid basis.

3. After we receive your return, we will examine it and try to verify the reason for returning it.

4. In cases of manufacturing defect, we will enter a repair order, replacement order or issue credit for material returned. In cases of customer misuse, we will provide repair costs and request a purchase order to proceed with the repair work.

5. To return products that are not defective, goods must be in new condition, in the original boxes and they must be returned within 120 days of receipt. A 20 percent restocking charge is applied for all returned stock controls and accessories.

6. If the unit cannot be repaired, you will receive a letter of explanation and be given the option to have the unit returned to you at your expense or to have us scrap the unit.

7. Watlow reserves the right to charge for no trouble found (NTF)

returns.

EZ-ZONE RM is covered by U.S. Patent No. 6,005,577 and Patents Pending

Table of Contents

Chapter 1: Overview .....................................3

A Conceptual View of the RMH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Getting Started Quickly ...................................... 9

Dimensions .............................................. 15

Chapter 2: Install and Wire ................................15

Power Supplies ........................................... 17

RMH Installation and Removal on a DIN Rail .................... 18

Wiring .................................................. 20

Conventions Used in the Menu Pages ......................... 35

Chapter 3: Operations Pages ..............................37

Analog Input Menu ........................................ 39

Process Value Menu ....................................... 39

Digital Input/Output Menu .................................. 40

Action Menu .............................................40

Monitor Menu ............................................ 41

Control Loop Menu ........................................ 41

Alarm Menu ............................................. 43

Linearization Menu ........................................44

Compare Menu ........................................... 45

Timer Menu .............................................45

Counter Menu ............................................ 46

Logic Menu .............................................. 46

Math Menu ..............................................47

Chapter 4: Setup Pages ..................................49

Analog Input Menu ........................................ 51

Digital Input/Output Menu .................................. 56

Action Menu .............................................58

Control Loop Menu ........................................ 59

Output Menu ............................................. 65

Alarm Menu ............................................. 68

Linearization Menu ........................................71

Compare Menu ........................................... 73

Timer Menu .............................................75

Counter Menu ............................................ 77

Watlow EZ-ZONE® RMH Module • 1 • Table of Contents

Table of Contents (cont.)

Logic Menu .............................................. 79

Math Menu ..............................................88

Variable Menu ............................................ 92

Global Menu .............................................92

Communications Menu ..................................... 93

Chapter 5: Factory Pages .................................94

Custom Setup Menu ....................................... 95

Security Setting Menu ..................................... 96

Security Setting Menu ..................................... 97

Diagnostics Menu ......................................... 97

Calibration Menu .........................................98

Chapter 6: Features .....................................99

Saving and Restoring User Settings .......................... 101

Inputs .................................................101

Outputs ................................................ 103

Control Methods ......................................... 104

Alarms ................................................107

Open Loop Detection ..................................... 108

Using Lockout to Hide Pages and Menus ...................... 108

Using Password Security .................................109

Modbus - Using Programmable Memory Blocks ................ 110

Software Configuration .................................... 112

Function Block Descriptions ................................ 115

Chapter 10: Appendix ..................................143

Modbus - Programmable Memory Blocks .....................143

Troubleshooting Alarms, Errors and Module Issues .............. 147

RMH Specifications ...................................... 150

EZ-ZONE Rail-Mount High Density Module Ordering Information ...153

Index .................................................. 154

How to Reach Us ........................................158

Watlow EZ-ZONE® RMH Module • 2 • Table of Contents

Chapter 1: Overview

Available EZ-ZONE RM System Literature and Resources

Document Title and Part Number Description

EZ-ZONE Rail Mount Access (RMA) User's Guide, part number: 0600-0072-0000

EZ-ZONE Rail Mount Controller (RMC) User's Guide, part number: 0600-0070-0000

EZ-ZONE Rail Mount Scanner (RMS) User's Guide, part number: 0600-0071-0000

EZ-ZONE Rail Mount Expansion (RME) User's Guide, part number: 0600-0073-0000

EZ-ZONE Rail Mount Limit (RML) User's Guide, part number: 0600-0075-0000

EZ-ZONE Remote User Interface (RUI) User's Guide, part number: 0600-0060-0000

EZ-ZONE RM Specification Sheet, part number:

WIN-EZRM-1113

Describes how to connect the RM system into an industrial network, how to use data logging, module backup and the real-time clock.

The RMC module is an advanced integrated controller capable of PID and limit control. This document describes how to configure and program all loops of control and communications.

This module adds monitoring points to the RM system. This document describes common usage and the various types of I/O available.

When additional I/O is needed the Expansion module fills the gap. This document describes common usage and the various types of I/O available.

The RML module will protect against unwanted thermal runaway and over temperature conditions. The User Guide describes configuration, programming and communications capabilities.

The RUI provides a visual LED display to the RM configuration and setup menus. This document illustrates and describes connections and also describes the Home Page for each RM module as viewed from the RUI.

Describes RM hardware options, features, benefits and technical specifications.

Watlow Support Tools DVD, part number: 06010001-0000

The DVD described above ships with the product and as stated contains all of the literature above as well as much more. If the DVD is not available one can be acquired by contacting Watlow Customer Service at 1-507-454-5300.

As an alternative to the DVD, all of the user documentation described above can also be found on the Watlow website. Click on the following link to find your document of choice: http://www.watlow.com/literature/

index.cfm. Once there, simply type in the desired part number (or name) into the search box and download

free copies. Printed versions of all user documents can also be purchased here as well.

Contains all related user documents, tutorial videos, application notes, utility tools, etc...

Your Comments are Appreciated

In an effort to continually improve our technical literature and ensure that we are providing information that is useful to you, we would very much appreciate your comments and suggestions. Please send any comments you may have to the following e-mail address: TechlitComments@watlow.com

Watlow EZ-ZONE® RMH Module • 3 • 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 standalone module or in applications that require distributed 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 ability 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 communications

• 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 options

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 system 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 another 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 integrated solution that minimizes inter-module connections and potential problems at screw termination points.

• Reduces installation cost

• Eliminates compatibility headaches often encountered with using many different components and brands

Controller Handles High Ambient Temperatures

• 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-Defined Parameter Default Settings

• Allows customers to save and restore their own defined defaults for machine parameter settings

• Reduces service calls and downtime due to inadvertent 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 functionality 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 mounted remotely from one another

• Shares control operation via Synergistic Module

Watlow EZ-ZONE® RMH Module • 4 • Chapter 1 Overview

Control capability

• Allows individual modules to be mounted closer to the physical input and output devices to which they are wired

• Improves system reliability and lowers wiring costs

Agency Approvals: UL® listed, CE, RoHS, W.E.E.E. SEMI F47-0200, Class 1 Div. 2 Rating on Selected Models

• Assures prompt product acceptance

• Reduces panel builder's documentation and agency costs

Removable Connectors

• Assures reliable wiring and reduces service calls

• Simplifies installation

Three-Year Warranty

• Demonstrates Watlow’s reliability and product support

Watlow EZ-ZONE® RMH Module • 5 • Chapter 1 Overview

A Conceptual View of the RMH

The flexibility of the RMH’s software and hardware allows for variation in configurations. Acquiring a better understanding of its functionality and capabilities while at the same time planning out how the controller can be used will deliver maximum effectiveness in your application.

It is useful to think of the controller in three parts: inputs, procedures and outputs. Information flows from an input to a procedure to an output when the controller is properly configured. An RMH controller can carry out several procedures at the same time, e.g., PID control, monitoring for several different alarm situations, monitoring and acting upon digital inputs and driving output devices such as heaters, audible alarms, lights. Each process needs to be thought out carefully and the controller’s inputs, procedures and outputs set up properly.

Inputs

The inputs provide the information that any given programmed procedure can act upon. Simply stated, this information may come from an operator pushing a button or from a sensor monitoring the temperature of a part being heated or cooled.

Each analog input typically uses a thermocouple, RTD or thermistor to read the process temperature. It can also read volts, current or resistance, allowing it to use various devices to read humidity, air pressure, operator inputs and others values. Each analog input must be configured to match the device connected to that input (see: Analog Input Menu, Setup Page).

Each digital input reads whether a device is active or inactive. An RMH equipped with digital input/output hardware includes two sets of terminals where each of which can be used as either an input or an output. Each pair of terminals must be configured to function as either an input or output with the direction parameter (see: Digital Input/Output Menu, Setup Page).

Functions

Functions use input signals to calculate a value. A function may be as simple as reading a digital input to set a state to true or false, or reading a temperature to set an alarm state to on or off. Alternatively, if a failure with the primary sensing device should occur sensor backup could be utilized to avoid an unwanted shutdown.

To set up a function, it’s important to tell it what source, or instance, to use. For example, if the control is equipped with digital inputs they can be configured to reset an individual alarm or all alarms. If configured as such, the next step would be to define which of the available digital inputs would be tied to the alarm reset function. The RMH module can be

equipped with up to 12 digital inputs, instance 1 - 6 and 7 - 12. Once the specific input has been selected simply assign the alarm reset function to it (Setup Page, DIO Menu). The last step would be to define the alarm instance that should be reset. If zero is entered for the alarm instance when the digital input selected above is enabled, all latched alarms without a currently existing alarm condition will be reset. If a specific alarm instance (1 - 24) is selected it will be that instance alone that will be reset.

Note:

Alarms will reset automatically when the condition that caused the alarm goes back to a non-alarm state if the alarm latching prompt is set to nonlatching (Setup Page, ALM Menu).

Keep in mind that a function is a user-programmed internal process that does not execute any action outside of the controller. To have any effect outside of the controller, an output must be configured to respond to a function.

Outputs

Outputs can perform various functions or actions in response to information provided by a function, such as removal of the control voltage to a contactor; turning a light on or off; unlocking a door; or turning on an audible alarm.

Assign an output to a function in the Output Menu or Digital Input/Output Menu. Then select which instance of that function will drive the selected output. For example, in using a RMH module an output can be configured to respond to the output of the PID algorithm to drive a heater.

You can assign more than one output to respond to a single instance of a function. For example, alarm 2 could be used to trigger a light connected to output 1 and a siren connected to digital output 5.

Input Events and Output Events

Input events are internal states that are set by the digital inputs. Digital Input 1 provides the state of input event 1, and Digital Input 2 provides the state of input event 2. The setting of Digital Input function (Setup Page, Digital Input/Output Menu) does not change the relationship between the input and the event. An input will still control the input event state, even if Digital Input Function is set to None.

Actions

Based on a given input (Digital I/O, Event output, Logic function, etc..) the Action function can cause other functions to occur. To name a few, set alarms to

off, silencing alarms and enabling remote set point.

Watlow EZ-ZONE® RMH Module • 6 • Chapter 1 Overview

A Conceptual View of RM Hardware Configurations

Due to the scalability and flexibility in the RM system a user has several options available in the way that the hardware can be connected. Listed below are a few examples.

dard Bus to successfully communicate; disconnect all Modbus devices from the network. Once done using the RUI or EZ-ZONE Configurator software, switch the protocol back to Modbus RTU and reconnect all Modbus devices to re-establish communications over Modbus.

RMH Connected to a Remote User Interface (RUI) and a Personal Computer (PC)

In this configuration the RUI and PC are connected to the RMH module via Watlow's Standard Bus where both will be able to talk directly to the RMH module.

RMH

Controller

Slot C

Power

Supply

PC Running

EZ-ZONE

Configurator

RUI

In the graphic above the PC running EZ-ZONE Configurator software and or the RUI can be used to configure and then monitor the RMH and other modules connected to it.

RMH Module Connected to a Programmable Logic Controller (PLC) on a DIN Rail

RMH Module Connected to an Operator Interface Terminal (OIT) through an RMA

In this configuration the RMH can be connected to the OIT through the RMA running any of a number of available protocols. The RMA and the OIT must be using the same protocol while the communications from RMA to the RMH module is accomplished over the backplane using Watlow's Standard Bus protocol. Available protocols in the RMA follow:

1. EtherNet/IP and or Modbus TCP

2. DeviceNet

3. Modbus RTU

4. Profibus DP

Slot E

RMH

Controller

Slot C

RUI

Power

Supply

Access

Slot C

OIT

In this configuration the PLC can be connected to the RMH module using the Modbus RTU protocol:

RMH

Controller

Slot C

Power

Supply

PLC

PC Running

EZ-ZONE

Configurator

Notice that in the example above that there is an optional RUI connected to the RMH along with the OIT. OITs' are not generally used to configure a control but are used more for run-time information. As an alternative for configuration the RUI could be used to configure and monitor in a remote location.

One advantage in using an RMA module when communicating on a network is that protocol switching is not needed on the RMH module if using an RUI or EZ-ZONE Configurator software. The protocol of

choice used with the RMA can run simultaneously with the Standard Bus protocol.

RMH Connected to a Split Rail with OIT

In this configuration both the inter-module bus

In this example, the RMH module and the PLC must be equipped with the Modbus RTU protocol.

Note:

If it is intended to use an RUI or a PC using EZZONE Configurator software it will be necessary to switch the protocol on the RMH to Watlow's Stan-

Watlow EZ-ZONE® RMH Module • 7 • Chapter 1 Overview

(backplane communications) and Standard Bus are connected between rails to allow for remote capabilities. It is recommended that the split rail connection not exceed 100 feet. In this configuration the OIT can communicate with all modules (maximum 16 modules any combination with one Access module).

RMC

Controller

RMH

Controller

Access

Slot E

RMC

Controller

Slot C

RMH

Controller

Slot C

Power

Supply

OIT

Module Orientation

The picture that follows represents one of several different RM modules. All of them will have four slots on the face (slot A, B, D, and E) and one on the bottom (slot C) not shown. All of these slots are not always used on all modules. On the face of the module there is a button (yellow circle) under the Zone address ([5]). When pushed and held it has the following functions:

1. For any module, push and hold for ~ 2 seconds to change the Zone address

2. When a module is equipped with the Modbus protocol (RMxxxxxxxxxx1xx) pushing and holding this button for ~ 6 seconds the LED display will return [P] for protocol. Releasing the button and then pushing it again (within 6 seconds) the display will toggle between [N] (Modbus) and [S] (Standard Bus). Valid addresses for Modbus and Standard bus range from 1 -16 ([1] - [9], [a] is 10, [b] is 11, [C] is 12, [d] is 13, [e] is 14, [f] is 15, and [h] is 16). The RMA (Access) module is shipped at address [j] or 17 and is the only module that can have its address set above 16.

Module Status (Slot A, B, D, or E)

Protocol (Standard Bus red or Modbus - green)

Module outputs 1 through 16, all may or

may not be used depending on module type

Watlow EZ-ZONE® RMH Module • 8 • Chapter 1 Overview

Getting Started Quickly

Consider taking the following steps to quickly commission your control:

• Wire and connect the power source to the control

• Wire and connect input and output devices to the control

• Power up the control and navigate to the Setup Page to conﬁgure inputs, outputs, alarms, etc...

• Once the control is setup, navigate to the Operations Page to modify set points.

The RMH controller has a page and menu structure that is listed below along with a brief description of its purpose. The menu structure can be easily seen and navigated using EZ-ZONE Configurator soft-

ware or the Remote User Interface (RUI).

Note:

The menu navigation as described below applies when the RMH is connected to the RUI which is optional equipment.

Setup Page

Using the RUI, push and hold the up and down keys (¿ ¯) for 6 seconds to enter. (See the Setup Page for further information)

Operations Page

Using the RUI push and hold the up and down keys (¿ ¯) for 3 seconds to enter. (See the Op-

erations Page for further

information)

Factory Page

Using the RUI push and hold the Infinity and the green Advance keys (ˆ ‰) for 6 seconds to enter. (See the Factory

Page for further infor-

mation)

A user would want to setup their control prior to operation. As an example, define the input type, alarm sides (high and or low) or set the output function.

After setting up the control to reflect your equipment, the Operations Page would be used to monitor or change runtime settings. As an example, the user may want to see the current status (on or off) of an event status in the Action Menu.

For the most part the Factory Page has no bearing on the control when running. A user may want to enable password protection, view the control part number or perhaps create a custom Home Page.

Home Page

When using the RUI, the control is at the

Home Page when initial-

Pushing the green Advance Key ‰ will cause the display to show the control mode for loop 1.

ly powered up where it will display the Process Value for loop 1 in the upper display and the set point for loop 1 in the lower display.

Note:

The Home Page is visible only when using the RUI.

The default RMH loop configuration out of the box is shown below:

• All Analog Input functions are set to thermocouple, type J (to change go to the Setup Page, Analog Input Menu)

• All Process Value functions are set to off (to change go to the Setup Page, Process Value Menu)

• PID for all loops are set to heat and cool is off (to change go to the Setup Page, Loop Menu)

• All outputs are set to off (to change go to the Setup Page, Output Menu)

Once the control has been wired and setup, power up the control and change the appropriate set points to the desired value (on the RUI push the up ¿ and or down ¯ arrow key from the Home Page).

EZ-ZONE RMH Default Configuration

Input

Function

Input Sensor

All Analog Inputs

Thermocouple Type J

PID

Controller

Heat

All Loops

All Outputs

Output

Function

Off

Watlow EZ-ZONE® RMH Module • 9 • Chapter 1 Overview

EZ-ZONE RMH Module - System Diagram

16 Control Loops - Slots A, B, D and E

R M H x - [1,2] [1,2] [1,2] [1,2] - A A A A

Input

Function

Input Sensor

RUI,

PC, PLC or HMI

Other RM Modules

Power Supply

Analog Input 1 through 16

None, Thermocouple, 2-Wire RTD (100, 1k), Thermistor (5k, 10K, 20k, 40k), Process (V, mV, mA) or 1K Potentiometer

EIA - 485 Communications

Standard Bus

(optional Modbus RTU)

Inter-module Bus

20.4 to 30.8 Vac or Vdc

PID

Controller

Slot A, B, D, E

Modbus RTU

Address 1 - 16

Standard Bus

Zone 1 - 16

Supervisory &

Power Board

Slot C

Zone and Status

LED

Zone Selection

Button

Output

Function

Indicates Zone

Push to select Zone

Address and Protocol

Card Status

Slots A, B, D, E

Indicates communications activity (Modbus or Standard Bus)

Address

Watlow EZ-ZONE® RMH Module • 10 • Chapter 1 Overview

EZ-ZONE RMH Module - System Diagram

Output

Input

8 Control Loops - Slots A, B

4 - Form A Mechanical Relays - Slot D

6 - Digital I/O - Slot E

R M H x - [1,2] [1,2] J C - A A A A

Function

Input Sensor

Input Device

Analog Input 1 through 8

None, Thermocouple, 2-Wire RTD (100, 1k), Thermistor (5k, 10K, 20k, 40k), Process (V, mV, mA) or 1K Potentiometer

Digital Input 7, 8, 9, 10, 11 or 12

Switch contact or volts dc

PID

Controller

Slot A, B

4 - Mechanical

Relay Outputs

Form A

Slot D

6 - Digital Inputs / Outputs any combination

Slot E

Output 1, 2, 3, 4

5A Mechanical Relay Form A

Output 7, 8, 9, 10, 11 or 12

switched dc/open collector

Function

Analog Input Alarm Cool Power Heat Power Compare Counter Digital I/O Proﬁle Event Output A-H Function Key Linearization Logic Math Process Value Special Output Function 1-4 Timer Variable Off

RUI,

PC, PLC or HMI

Other RM Modules

Power Supply

EIA - 485 Communications

Standard Bus

(optional Modbus RTU)

Inter-module Bus

20.4 to 30.8 Vac or Vdc

Some input/output combinations not possible, see ordering matrix

Zone and Status

Output Status

Modbus RTU

Address 1 - 16

Standard Bus

Zone 1 - 16

Supervisory &

Power Board

Slot C

LEDs

LED

Zone Selection

Button

Indicates Zone

Push to select Zone

Address and Protocol

Card Status

Slots A, B, D, E

Indicates communications activity (Modbus or Standard Bus)

Indicates I/O

Address

Status

Watlow EZ-ZONE® RMH Module • 11 • Chapter 1 Overview

EZ-ZONE RMH Module - System Diagram

Output

Input

8 Control Loops - Slots A, B

6 - Digital I/O - Slot D

4 - Form A Mechanical Relays - Slot E

R M H x - [1,2] [1,2] C J - A A A A

Function

Input Sensor

Input Device

Analog Input 1 through 8

None, Thermocouple, 2-Wire RTD (100, 1k), Thermistor (5k, 10K, 20k, 40k), Process (V, mV, mA) or 1K Potentiometer

Digital Input 1, 2, 3, 4, 5 or 6

Switch contact or volts dc

PID

Controller

Slot A, B

6 - Digital Inputs / Outputs any combination

Slot D

4 - Mechanical

Relay Outputs

Form A

Slot E

Output 1, 2, 3, 4, 5 or 6

switched dc/open collector

Output 7, 8, 9, 10

5A Mechanical Relay Form A

Function

Analog Input Alarm Cool Power Heat Power Compare Counter Digital I/O Proﬁle Event Output A-H Function Key Linearization Logic Math Process Value Special Output Function 1-4 Timer Variable Off

RUI,

PC, PLC or HMI

Other RM Modules

Power Supply

EIA - 485 Communications

Standard Bus

(optional Modbus RTU)

Inter-module Bus

20.4 to 30.8 Vac or Vdc

Some input/output combinations not possible, see ordering matrix

Zone and Status

Output Status

Modbus RTU

Address 1 - 16

Standard Bus

Zone 1 - 16

Supervisory &

Power Board

Slot C

LEDs

LED

Zone Selection

Button

Indicates Zone

Push to select Zone

Address and Protocol

Card Status

Slots A, B, D, E

Indicates communications activity (Modbus or Standard Bus)

Indicates I/O

Address

Status

Watlow EZ-ZONE® RMH Module • 12 • Chapter 1 Overview

EZ-ZONE RMH Module - System Diagram

Output

Input

8 Control Loops - Slots A, B

6 - Digital I/O - Slot D 6 - Digital I/O - Slot E

R M H x - [1,2] [1,2] C C - A A A A

Function

Input Sensor

Input Device

Analog Input 1 through 8

None, Thermocouple, 2-Wire RTD (100, 1k), Thermistor (5k, 10K, 20k, 40k), Process (V, mV, mA) or 1K Potentiometer

Digital Input 1, 2, 3, 4, 5, 6

Switch contact or volts dc

Digital Input 7, 8, 9, 10, 11, 12

Switch contact or volts dc

PID

Controller

Slot A, B

6 - Digital Inputs / Outputs any combination

Slot D

6 - Digital Inputs / Outputs any combination

Slot E

Output 1, 2, 3, 4, 5, 6

switched dc/open collector

Output 7, 8, 9, 10, 11, 12

switched dc/open collector

Function

Analog Input Alarm Cool Power Heat Power Compare Counter Digital I/O Proﬁle Event Output A-H Function Key Linearization Logic Math Process Value Special Output Function 1-4 Timer Variable Off

RUI,

PC, PLC or HMI

Other RM Modules

Power Supply

EIA - 485 Communications

Standard Bus

(optional Modbus RTU)

Inter-module Bus

20.4 to 30.8 Vac or Vdc

Some input/output combinations not possible, see ordering matrix

Zone and Status

Output Status

Modbus RTU

Address 1 - 16

Standard Bus

Zone 1 - 16

Supervisory &

Power Board

Slot C

LEDs

LED

Zone Selection

Button

Indicates Zone

Address

Push to select Zone

Address and Protocol

Card Status

Slots A, B, D, E

Indicates communications activity (Modbus or Standard Bus)

Indicates I/O

Status

Watlow EZ-ZONE® RMH Module • 13 • Chapter 1 Overview

EZ-ZONE RMH Module - System Diagram

Output

Input

8 Control Loops - Slots A, B

3 - Process Outputs - Slot D or E

4 - SSR Outputs - Slot D or E

R M H x - [1,2] [1,2] [F,L ] [F,L ] - A A A A

Function

Input Sensor

Analog Input 1 through 8

None, Thermocouple, 2-Wire RTD (100, 1k), Thermistor (5k, 10K, 20k, 40k), Process (V, mV, mA) or 1K Potentiometer

PID

Controller

Slot A, B

3 - Universal/

Retransmit

4 - 2A SSR

Outputs

Slot D

3 - Universal/

Retransmit

4 - 2A SSR

Outputs

Slot E

Output 1, 2, 3, 4

Process, 2A Solid-State Relay Form A

** The functions listed to the right

with purple text apply to the Process output only, where the orange text applies to the SSR output only. All others apply to both output types.

Output 7, 8, 9, 10

Process, 2A Solid-State Relay Form A

Function

Off Analog Input

Current*

Alarm*

Cool Power Heat Power

Power*

Compare* Counter* Digital I/O* Proﬁle Event Output A-H* Function Key*

Linearization Logic Math Process Value

Set Point Closed* Set Point Open*

Special Output Function 1-4

Timer*

Variable

RUI,

PC, PLC or HMI

Other RM Modules

Power Supply

EIA - 485 Communications

Standard Bus

(optional Modbus RTU)

Inter-module Bus

20.4 to 30.8 Vac or Vdc

Some input/output combinations not possible, see ordering matrix

Zone and Status

Output Status

Modbus RTU

Address 1 - 16

Standard Bus

Zone 1 - 16

Supervisory &

Power Board

Slot C

LEDs

LED

Zone Selection

Button

Indicates Zone

Push to select Zone

Address and Protocol

Card Status

Slots A, B, D, E

Indicates communications activity (Modbus or Standard Bus)

Indicates I/O

Address

Status

Watlow EZ-ZONE® RMH Module • 14 • Chapter 1 Overview

147.07 mm ( 5.8 in )

116.08 mm ( 4.57 in )

101.60 mm ( 4.00 in )

44.45 mm ( 1.75 in )

51.56 mm ( 2.03 in )

75.08 mm ( 3.0 in )

15

165 mm ( 6.50 in )

Module Removal Displacement

Latch in open position

155 mm ( 6.10 in )

116.08 mm ( 4.57 in )

101.60 mm ( 4.00 in )

44.45 mm ( 1.75 in )

51.56 mm ( 2.03 in )

75.08 mm ( 3.0 in )

173.90 mm ( 6.85 in )

Module Removal Displacement

Chapter 2: Install and Wire

Dimensions

As can be seen below the dimensions of the RM system will change slightly based on the type of connector used.

Module Removal Clearance Standard Connectors

Module Removal Clearance Straight Connectors

Watlow EZ-ZONE® RMH Module • 15 • Chapter 2 Install and Wire

Chassis Mount Front View (Module Removed) - Screw Connection Pattern

58.67 mm (2.31 in)

51.56 mm (2.03 in)

16.76 mm (.66 in)

17.53 mm (.69 in)

60.45 mm (2.38 in)

35.81 mm

(1.41 in)

32.77 mm (1.29 in)

35.05 mm (1.38 in)

The view above is representative of the modular backplane without the module.

Recommended chassis mount hardware:

1. #8 screw, 3/4" long

2. Torque to 10 -15 in-lb

3. No washers of any kind

Watlow EZ-ZONE® RMH Module • 16 • Chapter 2 Install and Wire

Power Supplies

DSP30

+ +

L N

DC LO

DC OK

123 4

5 6

53.00 mm

DSP30

2.087 in

91.00 mm

3.583 in

14.20 mm

9.75 mm

43.1 mm

91.00 mm

55.6 mm

49.00 mm

32.10 mm

0.559 in

1.697 in

0.384 in

3.583 in

2.189 in

1.929 in

1.264 in

DSP60

vout ADJ.

+ +

L N

DC LO

DC OK

123 4

5 6

DSP60

71.00 mm

2.795 in

91.00 mm

3.583 in

14.20 mm

9.75 mm

43.1 mm

91.00 mm

55.6 mm

49.00 mm

32.10 mm

0.559 in

1.697 in

0.384 in

3.583 in

2.189 in

1.929 in

1.264 in

DSP100

DC LO

DC OK

vout ADJ.

+ +

L N

123 4

5 6

DSP100

89.9 mm

3.539 in

91.00 mm

3.583 in

14.20 mm

9.75 mm

43.1 mm

91.00 mm

56.8 mm

49.00 mm

32.10 mm

0.559 in

1.697 in

0.384 in

3.583 in

2.236 in

1.929 in

1.264 in

Power Supply Specifications

DSP 30 DSP60 DSP100

AC Input Volt-

age Range

Input Fre-

quency

DC Input Volt-

age range

VAC

Hz 47 - 63Hz

VDC 120 - 370VDC

Inrush Cur-

rent (115 /

A 25 / 50A 30 / 60A 30 / 60A

230VAC)

Output Volt-

age Accuracy

Over voltage

Protection

LED Indica-

tors

Operating

Temperature

Storage Tem-

perature

Operating Hu-

midity

Vibration (Op-

erating)

% ±1% of Nominal

V 120 - 145%

- - - -

- - - - -25 to +85°C

- - - - 20 - 95% RH (non condensing)

- - - -

Safety Agency

Approvals For a comprehensive listing of these speciﬁcations point your browser to : http://us.tdk-lambda.com/lp/products/dsp-series.htm

90 - 264VAC, Class II double in-

sulated (No ground connection

required)

Green LED = On, Red LED = DC

Output Low

-25 to +71°C (Derate linearly

2.5%/°C from 55 to 71°C)

IEC 60068-2-6 (Mounting by rail: Random wave, 10-500 Hz, 2G, ea.

along X, Y, Z axes 10 min/cycle,

60 min)

UL1310 Class 2(1), UL508 Listed,

UL60950-1, EN60950-1, CE

Watlow EZ-ZONE® RMH Module • 17 • Chapter 2 Install and Wire

RMH Installation and Removal on a DIN Rail

Modular Backplane Connector

The picture on the right shows the Modular Backplane Connector, both front and rear view. The rear view is bringing in to focus a metal clip. If the DIN rail is grounded the Modular Backplane Connector and the module connected to it will be also (recommended).

Installing the Modular Backplane Connector

Step 1 Hook backplane assembly to upper edge of DIN rail, (see rear view above, backplane hook detail that mates with upper rail edge is circled) Step 2 Next, rotate back plane assembly downward to en gage the lower edge of the rail. (Note: Din Rail clip ping distance ranges from 1.366 -1.389 inches. The back plane assembly will not latch onto the rail suc cessfully if the rail is out of dimension). Step 3 For final positioning and locking, the red tab is to be pushed upward to further engage the bottom edge of the rail with an over center snap action latch. (The red locking tab protrudes from the bot tom side of the back plane assembly).

Installing Multiple Modular Backplane Connectors

Multiple modules are easily aligned and latched together. Each module includes matched mating geometry that facilitates accurate and consistent interconnections. The recommended method of multi-module attachment is to first attach individual modules to the rail separately and second to laterally slide the modules together until they touch. (Refer to steps 1&2 above). When the multi-module system is attached and laterally positioned to the desired placement the locking tab should be engaged to secure the control system to the rail, (Refer to step 3 above).

Module Installation

In the picture to the right notice that the arrow is pointing at the top lip of the module (on side). When installing the module simply slide this lip over the top of the Modular Backplane Connector and then push down on the rear of the module where it will seat on the two posts just above the green connector.

Watlow EZ-ZONE® RMH Module • 18 • Chapter 2 Install and Wire

Module Removal

To remove a module from the Modular Backplane Connector find the red tab protruding from the bottom of the module and pull back on it as shown to the right. While pulling back on the red tab the two mounting posts will release the module where the module can then be lifted up and out of the Modular Backplane Connector.

Removal of the Modular Backplane Connector

A module can be removed from the Modular Backplane Connector by inserting a screw driver into the red locking tab just behind the green connector and applying downward pressure on the tab by lifting the screwdriver upwards. When released, the tab will move downward and the connector can then be lifted up off of the DIN rail.

Watlow EZ-ZONE® RMH Module • 19 • Chapter 2 Install and Wire

Wiring

High Density Module (R M H x - x x x x - x x x x)

Slot A Slot B Slot D Slot E Configuration

Inputs Universal, RTD and Thermistor Inputs

1 - 4 5 - 8 9 - 12 13 - 16

S1 R1 S2 R2 S3 R3 S4 R4

- - - - - - 1 - 6 7-12

- - -

- - - - - - - 1 - 4 7 - 10

- - -

Slot A Slot B Slot D Slot E Configuration

- - - - - - 1 - 6 7 - 12

- - -

- - - - - - 1 - 4 7 - 10

- - -

S5 R5 S6 R6 S7 R7 S8 R8

- - -

Outputs Quad 5A - Mechanical Relay Form A Outputs

- - -

S9 R9

S10

R10

S11

R11

S12

R12

B1 D1 D2 D3 D4 D5 D6 Z1

L1 K1 L2 K2 L3 K3 L4 K4

B1 D1 D2 D3 D4 D5 D6 Z1

S13 R13 S14 R14 S15 R15 S16 R16

B7 D7 D8 D9

D10 D11 D12

L7 K7 L8 K8 L9 K9

L10

K10

B7 D7 D8 D9

D10 D11 D12

S_ (RTD), thermocouple -, volts - , mA -, potentiometer wiper or thermistor R_ (RTD), thermocouple +, volts +, mA +, potentiometer or thermistor

Digital Inputs

Common DC +input DC +input DC +input DC +input DC +input DC +input Internal Supply

normally open common normally open common normally open common normally open common

Digital Outputs

Common open collector/ switched dc open collector/ switched dc open collector/ switched dc open collector/ switched dc open collector/ switched dc open collector/ switched dc Internal Supply

Universal/Thermistor Input

Part # Digits 5, 6, 7 Input 1-4: RMH _ - [1,2] _ _ _ - _ _ _ _ Input 5-8: RMH _ - _ [1,2] _ _ - _ _ _ _ Input 9-12: RMH _ - _ _ [1,2] _ - _ _ _ _ Input 13-16: RMH _ - _ _ _ [1,2] _ - _ _ _ _

Digital Inputs (DI)

Part # Digit 7, 8 Slot A: Option not valid Slot B: Option not valid Slot D: RMH _ - _ _ [C] _ - _ _ _ _ Slot E: RMH _ - _ _ _ [C] - _ _ _ _

Mechanical Relay 5 A, Form A

Part # Digits 7, 8 Slot D: : RMH _ - _ _ [J] _- _ _ _ _ Slot E: : RMH _ - _ _ _ [J] - _ _ _ _

Digital Outputs (DO)

Part # Digit 7, 8 Slot A: Option not valid Slot B: Option not valid Slot D: RMH _ _ - _ _ [C] _- _ _ _ _ Slot E: RMH _ - _ _ _ [C] - _ _ _ _

Quad 2A - Solid-State Relay (SSR) Form A Outputs

- - -

L1 K1 L2

- - -

- - L3 K3 L4

L7 K7 L8

- - -

- - L9 K9

L10

normally open common normally open

not used not used

normally open common normally open

2A SSR Outputs

Part # Digits 7, 8 Slot A: Option not valid Slot B: Option not valid Slot D: RMH _ - _ _ [L] _ - _ _ _ _ Slot E: RMH _ - _ _ _ [L] - _ _ _ _

Watlow EZ-ZONE® RMH Module • 20 • Chapter 2 Install and Wire

High Density Module (R M H x - x x x x - x x x x)

Slot A Slot B Slot D Slot E Configuration

Outputs (cont.)

- - - - - - 1 - 3 7 - 9

- - -

Slot C Configuration

98 99

CF CD CE

CC CA CB

CZ CX CY

- - F2

- - F3

Power input: ac or dc+ Power input: ac or dc-

Standard Bus EIA-485 common Standard Bus EIA-485 T-/RStandard Bus EIA-485 T+/R+

Standard Bus or Modbus RTU EIA-485 common Standard Bus or Modbus RTU EIA-485 T-/RStandard Bus or Modbus RTU EIA-485 T+/R+

Inter-module Bus Inter-module Bus Inter-module Bus

- - F8

- - F9

voltage or current voltage + or current +

not used

voltage or current voltage + or current +

not used

voltage or current voltage + or current +

Power and Communications

Tri-State Process/Retransmit Outputs

Tri-Process Outputs

Part # Digits 7, 8 Slot A: Option not valid Slot B: Option not valid Slot D: RMH _ - _ _ [F] _ - _ _ _ _ Slot E: RMH _ - _ _ _ [F] - _ _ _ _

All

Standard Bus

Part # Digit 10

RMH _ - _ _ _ _ - _ [A] _ _

Standard Bus or Modbus

Part # Digit 10

RMH _ - _ _ _ _ - _ [1] _ _

Inter-module Bus

Watlow EZ-ZONE® RMH Module • 21 • Chapter 2 Install and Wire

RMH Module - Front View -

Standard Connector

Slot D

Slot A

Slot E

Slot B

Slot C

power

Watlow EZ-ZONE® RMH Module • 22 • Chapter 2 Install and Wire

RMH System Isolation Blocks

Controller Power Supply

20.4 to 30.8VÎ (dc)

20.4 to 30.8VÅ (ac)

Safety Isolation

Mechanical Relay,

Solid-State Relay,

Outputs

Safety Isolation

Controller

Low Voltage Power Bus

Low-voltage Isolation: 42V peak

Safety Isolation: 1,528VÅ (ac)

No Isolation

Low-voltage

Isolation

Low-voltage

Isolation

Digital Inputs & Outputs,

Process Outputs

Analog Input 1 - 16

Communications Ports

Watlow EZ-ZONE® RMH Module • 23 • Chapter 2 Install and Wire

Warning: ç

Slot A, B, D, E

Use National Electric (NEC) or other country-specific standard wiring and safety practices when wiring and connecting this controller to a power source and to electrical sensors or peripheral devices. Failure to do so may result in damage to equipment and property, and/or injury or loss of life.

Note:

Maximum wire size termination and torque rating:

• 0.0507 to 3.30 mm2 (30 to 12 AWG) single-wire termination or two 1.31 mm2 (16 AWG)

• 0.8 Nm (7.0 in-lb.) torque

Note:

Adjacent terminals may be labeled differently, depending on the model number.

Note:

To prevent damage to the controller, do not connect wires to unused terminals.

Note:

Maintain electrical isolation between digital input-outputs, switched dc/open collector outputs and process outputs

to prevent ground loops.

High Density Module Wiring (RMHx-xxxx-xxxx)

Low Power

RMH- ALL Model Numbers

• 20.4 to 30.8 V Å (ac) / Î (dc)

• 47 to 63 Hz

• Controller module power consumption, 7 Watts maximum, 14VA

• 31 Watts maximum power available for P/S part #:0847-0299-0000

• 60 Watts maximum power available for P/S part #:0847-0300-0000

• 91 Watts maximum power available for P/S part #:0847-0301-0000

• Class 2 or SELV power source required to meet UL compliance standards

power

Communications

RMH Part # Digit 10 is A

• CF, CD, CE - Standard Bus EIA485 Communications

• CZ, CX, CY - Inter-module Bus EIA485 Communications

• Do not route network wires with power wires. Connect

Standard Bus

Common

T- / R-

T+ / R+

Inter-module Bus

Common

network wires in daisy-chain fashion when connecting multiple devices in a network

Warning: ç

Explosion Hazard – Substitution of component may impair suitability for CLASS I, DIVISION 2.

Warning: ç

Explosion Hazard - Do not disconnect while the circuit is live or unless the area is known to be free of ignitable concentrations of flammable substances.

Communications

RMH Part # Digit 10 is 1

• CC, CA, CB - Modbus and Standard Bus EIA-485 Communications (selectable via push button under zone address)

• CZ, CX, CY - Inter-module Bus EIA-485 Communications

• Do not route network wires with power wires. Con-

nect network wires in daisy-chain fashion when connecting multiple devices in a network

Modbus-IDA

Terminal

EIA/TIA-

485 Name

Common

T- / R-

Modbus

T+ / R+

Common

Inter-module Bus

DO A CA or CD T-/R-

D1 B CB or CE T+/R+

common common CC or CF common

Inputs 1 through 16 Thermocouple

RMH Part # Digits 5, 6, 7, 8

• 2K Ω maximum source resistance

• >20 MΩ input impedance

• 3 microampere open-sensor detection

• Thermocouples are polarity sensitive. The negative lead (usually red) must be connected to S terminal

• To reduce errors, the extension wire for thermocouples must be of the same alloy as the thermocouple.

Input 1 - 4 (top to bottom): RMHx-(1)xxx-xxxx Input 5 - 8 (top to bottom): RMHx-x(1)xx-xxxx Input 9 - 12 (top to bottom): RMHx-xx(1)x-xxxx Input 13 - 16 (top to bottom): RMHx-xxx(1)-xxxx

Watlow Terminal Label

Function

Watlow EZ-ZONE® RMH Module • 24 • Chapter 2 Install and Wire

Warning: ç

Slot A, B, D, E

RTD

Slot A, B, D, E

Note:

Maximum wire size termination and torque rating:

• 0.0507 to 3.30 mm2 (30 to 12 AWG) single-wire termination or two 1.31 mm2 (16 AWG)

• 0.8 Nm (7.0 in-lb.) torque

Note:

Adjacent terminals may be labeled differently, depending on the model number.

Note:

To prevent damage to the controller, do not connect wires to unused terminals.

Note:

Maintain electrical isolation between digital input-outputs, switched dc/open collector outputs and process outputs

to prevent ground loops.

Warning: ç

Explosion Hazard – Substitution of component may impair suitability for CLASS I, DIVISION 2.

Inputs 1 through 16 Potentiometer

CCW

• Use a 1 kΩ potentiometer. Input 1 - 4 (top to bottom): RMHx-(1)xxx-xxxx Input 5 - 8 (top to bottom): RMHx-x(1)xx-xxxx Input 9 - 12 (top to bottom): RMHx-xx(1)x-xxxx Input 13 - 16 (top to bottom): RMHx-xxx(1)-xxxx

Inputs 1 through 16 RTD RMH Part # Digits 5, 6, 7, 8

• platinum, 100 and 1,000 Ω @ 0°C

2-wire

• calibration to DIN curve (0.00385 Ω/Ω/°C)

• RTD excitation current of 0.09 mA typical. Each ohm of lead resistance may affect the reading by 2.55°C for a 100 ohm platinum sensor or 0.25°C for a 1000 ohm sensor.

Input 1 - 4 (top to bottom): RM-

Hx-(1)xxx-xxxx

Input 5 - 8 (top to bottom): RM-

Hx-x(1)xx-xxxx

Input 9 - 12 (top to bottom): RM-

Hx-xx(1)x-xxxx

Input 13 - 14 (top to bottom):

RMHx-xxx(1)-xxxx

AWG Ohms/1000ft

14 2.575

16 4.094

18 6.510

20 10.35

22 16.46

24 26.17

26 41.62

28 66.17

Warning: ç

Explosion Hazard - Do not disconnect while the circuit is live or unless the area is known to be free of ignitable concentrations of flammable substances.

Inputs 1 through 16 Thermistor

RMH Part # Digits 5, 6, 7, 8

• >20 MΩ input impedance

Thermistor

Input 1 - 4 (top to bottom): RMHx-(2)xxx-

xxxx

Input 5 - 8 (top to bottom): RMHx-x(2)xx-

xxxx

Input 9 - 12 (top to bottom): RMHx-xx(2)x-

xxxx

Input 13 - 16 (top to bottom): RMHx-xxx(2)-

xxxx

Watlow EZ-ZONE® RMH Module • 25 • Chapter 2 Install and Wire

Warning: ç

Slot A, B, D, E

Slot D, E

Int

Note:

Maximum wire size termination and torque rating:

• 0.0507 to 3.30 mm2 (30 to 12 AWG) single-wire termination or two 1.31 mm2 (16 AWG)

• 0.8 Nm (7.0 in-lb.) torque

Note:

Adjacent terminals may be labeled differently, depending on the model number.

Note:

To prevent damage to the controller, do not connect wires to unused terminals.

Note:

Maintain electrical isolation between digital input-outputs, switched dc/open collector outputs and process outputs

to prevent ground loops.

Warning: ç

Explosion Hazard – Substitution of component may impair suitability for CLASS I, DIVISION 2.

Warning: ç

Explosion Hazard - Do not disconnect while the circuit is live or unless the area is known to be free of ignitable concentrations of flammable substances.

Process Inputs 1 through 16

RMH Part # Digit 5, 6, 7, 8 is 1

• 0 to 20 mA @ 100 Ω input imped-

ance

• 0 to 10VÎ (dc) @ 20 kΩ input impedance

• 0 to 50 mVÎ (dc) @ 20 MΩ input impedance

• scalable

Slot 1: RMHx-(1)xxx-xxxx

(Inputs 1 to 4)

Slot 2: RMHx-x(1)xx-xxxx (Inputs 5 to 8)

Slot 3: RMHx-xx(1)x-xxxx (Inputs 9 to 12)

Slot 4: RMHx-xxx(1)-xxxx (Inputs 13 to 16)

Digital Inputs 1 through 12

RMH Part # Digit 7, 8 is C

Common

DC Input

ernal

Supply

Digital Input Event Conditions

• Voltage

- Input inactive when < 2V

- Input active when > 3V

Vdc

• Dry Contact

- Input inactive when > 100KΩ

- Input active when < 50Ω

• Six user configurable

digital inputs/outputs per slot

- Slot D DI 1 - 6

RMHx-xx(C) xx-xxxx

- Slot E DI 7 - 12

RMHx-xxx(C)-xxxx

Voltage Input

common

Dry Contact

24 Vdc

Suppressor Note: Switching pilot duty inductive loads (relay coils, solenoids, etc.) with the mechanical relay, solid state relay or open collector output options requires use of an R.C. suppressor for AC load or a diode for a DC load.

Watlow EZ-ZONE® RMH Module • 26 • Chapter 2 Install and Wire

Warning: ç

witched dc

Slot D, E

witched dc

Note:

Maximum wire size termination and torque rating:

• 0.0507 to 3.30 mm2 (30 to 12 AWG) single-wire termination or two 1.31 mm2 (16 AWG)

• 0.8 Nm (7.0 in-lb.) torque

Note:

Adjacent terminals may be labeled differently, depending on the model number.

Note:

To prevent damage to the controller, do not connect wires to unused terminals.

Note:

Maintain electrical isolation between digital input-outputs, switched dc/open collector outputs and process outputs

to prevent ground loops.

Warning: ç

Explosion Hazard – Substitution of component may impair suitability for CLASS I, DIVISION 2.

Warning: ç

Explosion Hazard - Do not disconnect while the circuit is live or unless the area is known to be free of ignitable concentrations of flammable substances.

Digital Outputs 1 - 12

RMH Part # Digit 7, 8 is C

• Maximum switched voltage is 32VÎ (dc)

• Internal supply provides

a constant power output of 750mW

• Maximum output sink current per output is

1.5A (external class 2 or *SELV supply required)

• Total sink current for all

Common

open collector/s

Internal

Supply

outputs not to exceed 8A

• Do not connect outputs in

parallel

- Slot D DO 1 - 6

RMHx-xx(C)x-xxxx

- Slot D DO 7 - 12

RMHx-xxx(C)-xxxx

*Safety Extra Low Voltage

Switched DC Wiring Example Using DO 1-12

Collector Outputs

VDC

Internal Circuitry

Common

Internal Supply

Htr 3

Htr 2

Htr 1

Open Collector/Switched

DC Outputs

DC90-60C0-0000

Note:

As a switched DC output; this output is a constant current output delivering 750 mW, current limited to 400 mA. The internal supply does have a maximum open circuit voltage of 22 VDC and minimum open circuit voltage of 19 VDC. Pin Z_ is shared to all digital outputs. This type of output is meant to drive solid state relays, not mechanical relays.

Watlow EZ-ZONE® RMH Module • 27 • Chapter 2 Install and Wire

+ 131 hidden pages

Watlow EZ-ZONE RMH User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Chapter 1: Overview

A Conceptual View of the RMH

Getting Started Quickly

Chapter 2: Install and Wire

Dimensions

Power Supplies

RMH Installation and Removal on a DIN Rail

Wiring