Grieve Corporation EZ-ZONE PM Installation Manual

ISO 9001

CUSTTOOMMERER

TISFAA

CTIOONN

EZ-ZONE® RM System

User’s Manual

Rail Mount System

1241 Bundy Boulevard., Winona, Minnesota USA 55987

Phone: [phone], Fax: [phone] http://www.watlow.com

TOTAL

CUS

SSAATISF

3 Year Warranty

CTI

ISO 9001

Registered Company

Winona, Minnesota USA

0600-0061-0000 Rev. A Made in the U.S.A.

September 2008 $25.00

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,
precedes a general CAUTION or WARNING statement.

The electrical hazard symbol,
precedes an electric shock hazard CAUTION or WARNING

safety statement. Further explanations follow:

Symbol Explanation

(an exclamation point in a triangle)

(a lightning bolt in a triangle)

CAUTION – Warning or Hazard
that needs further explanation
than label on unit can provide.
Consult users manual 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.

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:

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

Unit has been reviewed and ap­proved by ODVA for compliance
with DeviceNet communications
protocol. See: www.odva.org

Unit has been reviewed and ap­proved by ODVA for compliance
with Ethernet/IP communications
protocol. See: www.odva.org

www.

Warranty

The EZ-ZONE® RM 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. Watlow’s obligations hereun­der, at Watlow’s 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.

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

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 ques-

tions to [e-mail] or by dialing [phone]

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 Manual

• Factory Page

Return Material Authorization (RMA)

1. Call Watlow Customer Service, [phone], 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 RMA number from the Customer Service
Department is required when returning any product for credit,
repair or evaluation. Make sure the RMA 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 mis-use, 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 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 is unrepairable, 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.

The EZ-ZONE® RM User’s Manual is copyrighted by
Watlow Winona, Inc., © September 2008 with all rights
reserved.

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

TC

Table of Contents

Chapter 1: Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Chapter 2: Install and Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Chapter 3: Using a Remote User Interface (RUI) with RM System . . . . .34

Chapter 4: Home Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Chapter 5: Operations Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Control Module Operation Page Parameters. . . . . . . . . . . . . . . . . . . . . 39

Expansion Module Operation Page Parameters . . . . . . . . . . . . . . . . . . 52

Access Module Operation Page Parameters . . . . . . . . . . . . . . . . . . . . . 58

Chapter 6: Setup Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Control Module Setup Page Parameters . . . . . . . . . . . . . . . . . . . . . . . . 60

Expansion Module Setup Page Parameters . . . . . . . . . . . . . . . . . . . . 106

Access Module Setup Page Parameters . . . . . . . . . . . . . . . . . . . . . . . 135

Chapter 7: Profiling Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Chapter 8: Factory Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Control Module Factory Page Parameters . . . . . . . . . . . . . . . . . . . . . 154

Expansion Module Factory Page Parameters . . . . . . . . . . . . . . . . . . . 157

Access Module Factory Page Parameters . . . . . . . . . . . . . . . . . . . . . . 159

Chapter 9: Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

Chapter 10: Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

Chapter 11: Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288

Modbus Remote Terminal Unit (RTU) and Modbus TCP . . . . . . . . . . 288

EtherNet/IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

DeviceNet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Chapter 12: Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Common Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Control Module Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Expansion Module Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Access Module Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

Watlow EZ-ZONE® RM System • 1 • Table of Contents

1

Chapter 1: Overview

The EZ-ZONE® Rail Mount (RM) system takes
the pain out of solving your thermal loop require­ments whether it be for a single loop, multi-loop,
stand-alone, or distributed control applications.

Watlow’s EZ-ZONE RM control system offers op-

tions to reduce application complexity and the cost of
control-loop ownership. The system can be designed
to include one or more RM-Control Modules (with up
to four loops), one or more RM-Expansion Modules
(for additional discrete inputs and outputs), and a
RM-Access Module (for communications, conf igura­tion backup, real-time clock and data logging). The
modules (up to 16, 17 including an Access module)
can be connected together on the DIN rail minimiz­ing wiring, or they can be separated. You can order
the EZ-ZONE RM as a single or multi-loop PID con­troller or an over-under limit controller, or you can
combine both functions. The system allows for op­tional integration of high-amperage power controller
outputs, limits and controllers all in space-saving,
rail-mount packages. You can also select from a
number of serial communications options to help you
manage system performance.

It just got a whole lot easier to solve the thermal

requirements of your system. Because the EZ-ZONE
RM system is highly scalable, you only pay for what
you need. Ordering options allow for 1 to 64 loops, 1
to 384 I/O points, and various communications op­tions. So, if you are looking for a stand-alone or net­worked PID controller, an over-under limit controller
or an integrated controller, the EZ-ZONE RM sys­tem is the answer.

Standard Features and Benefits

Integrated PID and over/under safety limit
controller in one package

• 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

• Increases user and equipment safety for over/un-

der temperature conditions

Integrated power controller output

• Includes the patented NO-ARC, which drives up to

15 amp resistive loads directly

• Provides an optional solid state relay (SSR) out-

put, which can drive up to 10 amps into resistive
loads. Terminals for the ring lug connection is op­tional

• Reduces component count and cost of ownership

• Saves panel space and simplifies wiring

Current monitoring (traditional or algorithm)

• Detects heater current flow and provides alarm

indication of a failed output device or heater load

• For use in single or three phase loads

• Allows for sharing of current transformers (CTs)
across many zones, which saves cost on purchas­ing extra CTs, wiring and mounting labor and
panel space

Communication Capabilities

• Supports network connectivity to a PC or PLC

• Provides a wide range of protocol choices including
Modbus
viceNet™

Additional control integration options

• Provides a sequencer function

• Includes programmable timer functions

• Includes programmable counter functions

• Allows for simple math and logic programming op­tions

On-board data logging memory

• Ensures vital data is retained

• Downloads data files from the controller when­needed eliminating the need for a separate chart
recorder

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 ad potential problems at screw termina­tion points.

®

RTU, EtherNet/IP™, Modbus® TCP, De-

Watlow EZ-ZONE® RM System • 2 • Chapter 1 Overview

• 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

Optional Access Module Available

• Serves as a configuration station

• Provides communication capabilities between the
other modules and the PC or PLC

• Stores corresponding module parameter settings
for easy auto-configuration of other additional
modules or replacement modules

• Serves as a configuration station, which programs
initial module setup or automatic programming of
modules if swapping out after initial installation

• Provides a USB port for uploading and download­ing configuration or datalog files directly to a PC

• Saves time and increases reliability of parameter
setting

• Logs process data

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

System Integration is Made EZ with Un­matched Flexibility

• Comes with a wide range of communication options
such as Ethernet which makes connecting to PLC’s
and touchpanel products a snap

• Provides plug and play capabilities with basic Re­mote User Interface (RUI’s), see EZK accessory
listings

• Free standard bus communications port and free
PC software (EZ-ZONE Configurator)

Modules Allow for Greater Design Flexibility

• Allows PID loops to be added in increments of one.

System can scale from 1 to 64 total loops (max. of
17 total modules including an Access module)

• 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 (SMC)

• 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 (SRC)

• Allows modules to be mounted together or mount­ed remotely from one another

• Shares control operation via Synergistic Module
Control (SMC) 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

Factory Mutual (FM) Approved Safety Limit

• Increases user and equipment safety for over/under
temperature conditions

• Supports SEMI S2 specification

Agency Approvals: UL® listed, CE, RoHS,
W.E.E.E. FM, 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

• Provides a terminal option for accepting ring lug
connection

Profile Capability

• Allows ramp/soak programming

• Provides 25 profiles and 400 total steps

Remote Set Point Operation

• Supports efficient set point manipulation from a
remote device such as a master control or PLC

• Allows one or more loops to be programmed to con­trol based on another loop's set point eliminating
the cost of purchasing additional retransmit and
remote set point hardware

Retransmit

• Supports industry needs for process recording

Three-Year Warranty

• Demonstrates Watlow’s reliability and product sup­port

Watlow EZ-ZONE® RM System • 3 • Chapter 1 Overview

A Conceptual View of the RM System

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

The system at a high level can have a total of 17
modules installed, one of which can be an Access
module and the others (16 maximum) can be any
combination of Control or Expansion modules. With
the exception of the Access module, the user will de­fine each address via the button on the face of each
module. Each installed Control or Expansion module
must have a unique Standard Bus address ranging
from 1-9, A-F, H. The Access module will be delivered
with a default Standard Bus address of 17 (J).

The RMC (Controller) can be ordered with up to
four loops with default loop configurations (all loops)
out of the box as follows:

Analog Input functions set to thermocouple, type •
J

Control loops 1 through 4 use Analog Inputs 1 •

through 4 respectively

Heat algorithm set for PID, Cool set to off•

Control mode set to Auto•

Set point set to 75° F•
So, for a heating application, to complete a heating

loop configuration simply configure one or more out­put functions as Heat Power.

Note:

Zones can communicate with one another over the
backplane (local and split rail). Once the system is
configured and running changing zone addresses
without careful deliberation may cause disruption in
operation.

Some of the user selectable ordering options are
listed below:

1. Class 2 or SELV (Saftey Extra Low Voltage) equiv-

alent Power Supplies:

90-264 Vac to 24Vdc @ 31 watts •
90-264 Vac to 24Vdc @ 60 watts•
90-264 Vac to 24Vdc @ 91 watts•

2. RM Control Module can provide:

1 to 4 control loops, limits or CT inputs•
1 to 9 inputs (various types)•
1 to 12 outputs (various types)•
Modbus RTU communications•

3. RM Expansion Module can provide:

1 to 24 Digital Inputs/Outputs (I/O)•
4 to 12 Form A Mechanical Relays•
2 to 4 Form A 10A Solid-State Relays•
4 inputs for external Current Transformers •
(CT)

4. RM Access Module can provide:

Communications - DeviceNet, EtherNet/IP, •
Modbus RTU/TCP
Battery Backup•

Real Time Clock•
Data Logging•
Auto-Configuration Backup•

As can be seen above the RM system is fully scalable
with regards to power requirements, number of loops,
inputs, and outputs.

It is useful to think of the controller in three
parts: inputs (analog and digital), functions (math,
logic, PID, etc.), and outputs (relay, SSR, switched
DC, analog and or digital). Information flows from
an input to a function to an output when the control­ler is properly configured. A single RM controller can
carry out several functions at the same time; for in­stance: mathematical operations, closed-loop control,
monitoring for several different alarm situations and
operating switched devices, such as lights and mo­tors. Each process needs to be thought out carefully
and the controller’s inputs, functions and outputs
configured properly.

What is an Instance?

The RM system has lots of features, in most cases
more than one. For example, an RM module can have
four control loops. They are named Control Loop 1,
Control Loop 2, Control Loop 3 and Control Loop 4.
Each is an instance of a control loop. They are num­bered, 1, 2, 3 or 4 to distinguish between them and
that number indicates the specific instance of a con­trol loop in the module. These instance numbers are
used when you link inputs, functions and outputs.
For example, when configuring a heat output the
control loop instance (1, 2, 3 or 4) to drive the output
must be defined.

Functions

Functions, in simple terms use input signals (real­world or internal), to calculate a value and deliver an
output. A function may be as simple as configuring
the function of the analog input, i.e., thermocouple,
RTD, etc., or reading a temperature to set an alarm
state to on or off. Or, in differential control it could be
looking at the difference between two inputs for the
purpose of establishing a new set point value.

To use a function you will typically select the
source of its inputs and set its other options as well.
Some functions have a hardware input for which the
sources are preset and cannot be changed. The Ana­log Input 1 function's input comes, not surprisingly,
from the sensor attached to the RM's first analog in­put. Most functions, however, get their inputs from
other function's outputs. For example, the function
Alarm 1, can get its input from a variety of sources
including any of the instances of analog inputs or
current transformers in the controller. To select an
input for a function, you set the function's Source
Function, Source Instance and Source Zone param­eters. To set Alarm 2 to monitor Analog Input 3
in a module with zone address 8, you set Alarm 2's
Source Function to "Analog Input", Source Instance
to "3" and Source Zone to "8". Most functions can ac­cept more than one input. The source parameters for
the first input to a function are called Source Func-

Watlow EZ-ZONE® RM System • 4 • Chapter 1 Overview

tion A, Source Instance A and Source Zone A and for
the second input Source Function B, Source Instance
B and Source Zone B and so on.

It should be noted that once a function is config­ured caution should be observed when considering
changing zone addresses. For example, an alarm may
be set to respond to a real-world digital input from
instance 1 of another module (different zone). If the
zone address is changed where the digital input actu­ally resides the alarm will no longer work.

Keep in mind that a function is a user-pro­grammed process that may or may not perform an
action outside of the controller. It would not be un­common to see the output (internal) of one function
serve as an input to another, as would be the case
with a compare function. To have any effect outside
of the controller, an output (real-world) function must
be configured to respond to some other function.

Inputs

The inputs provide the information that any given
programmed function can act upon. In a simple form,
this information may come from an operator push­ing a button, or as part of a more complex function it
may represent a remote set point being received from
another zone.

Each analog input can be configured for therm­istors, thermocouples, or RTDs to read the process
variable. It can also read mV/volts, current or resis­tance, enabling usage of various devices to read hu­midity, air pressure, operator inputs and other val­ues. The settings in the Analog Input Menu (Setup
Page) for each analog input must be configured to
match the device connected to that input.

Each digital input reads whether a device is ac­tive or inactive. A RM system can be equipped with
multiple digital I/O. Each I/O point must be config­ured to function as either an input or output with the
direction parameter in the digital I/O Menu (Setup
Page).

Another concept that needs to be understood is
the difference between an input tied to a real-world
device such as a thermocouple and one that is tied to
an internal function.

Outputs

Outputs can perform various functions or actions in
response to information provided by a function, such
as the output of the control; using a digital input or
output to turn a light on or off, unlocking a door; or
turning on a buzzer.

Assign an output to a function in the Output
Menu or Digital I/O Menu. Then select which in­stance of that function will drive the selected output.
For example, you might assign an output to respond
to an internal output of a compare function or to re­transmit the value of analog input 2 (instance 2).

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 and output events are internal states that are
used exclusively by profiles. The source of an event
input can come from a real-world digital input or an
output from another function. Likewise, event out­puts may control a physical output such as an output
function block or be used as an input to another func­tion.

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, starting and
stopping a profile, silencing alarms, turncontrol loops
off and placing alarms in non-alarm state.

A Conceptual View of RM Hardware Configurations

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

RM System Connected to a Remote User Inter­face (RUI) and a PC

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

Analog

Input

Function

PV
Function

Control

Function

Output

Function

RM

ControlRMExpansion

In the example above one can see the analog input
function on the left which is connected to the real­world input device where on the far right the same
can said for the output function as well. The control­ler, when shipped from the factory (default state) has
real-world analog input 1 tied to the PV function
source A input. Its internal output serves as the in­put to the control function. Lastly, in this example,
the output of the control function (perhaps heat or
cool) serves as the input to the output function where
a real-world output device is then driven.

Controller and the RM Expansion module. The PC
running EZ-ZONE Configurator software and the

Watlow EZ-ZONE® RM System • 5 • Chapter 1 Overview

PC

EZ-ZONE

Congurator

RUI

Slot CSlot C

Power
Supply

RUI can be used to configure and then monitor both
modules.

RM System Connected to a Programmable Log­ic Controller (PLC) on a DIN Rail

In this configuration the PLC can be connected to
the RM system via the Access module using one or
more available protocols:

1. EtherNet/IP and or Modbus TCP

2. DeviceNet

3. Modbus RTU

RM

Control

RM

Expansion

RM

Access

Slot E

RM System Connected to a Split Rail with HMI

In this configuration both the Inter-module Bus
(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 HMI
can communicate with all modules (maximum 16
modules any combination with one Access module).

RM

Control

Slot C

RM

Expansion

Slot C

Access

RM

Slot C

Slot E

Slot CSlot CSlot C

Power
Supply

PLC

RM System Connected to an Human Machine
Interface (HMI) through an RUI/Gateway

In this configuration the HMI can be running any
of a number of protocols communicating to the RM
system through Watlow's RUI/Gateway. Available
protocols for the RUI/Gateway follow:

1. EtherNet/IP and or Modbus TCP

2. DeviceNet

3. Modbus RTU

RM

ControlRMExpansion

Slot C

RUI/Gateway

Slot C

Power
Supply

Power
Supply

RM

Control

Slot C

RM

Expansion

Slot C

RM

Expansion

Slot C

HMI

RM Control Module Connected to an Human
Machine Interface (HMI) Running Modbus
RTU

In this configuration the control module connected

to the HMI is equipped with the Modbus RTU proto­col (RMCxxxxxxxxx1xx). It is important to note that
Modbus communications takes place between the
HMI and the control it is connected to. The RM back­plane is always using the Standard Bus protocol. If
it is desired that the HMI communicate to both con­trol modules, both control modules would need Mod­bus communications and then pins CC, CA, and CB
would need to be daisy chained together.

RM

ControlRMControl

Slot C

HMI

HMI

Slot C

Power
Supply

Watlow EZ-ZONE® RM System • 6 • Chapter 1 Overview

Module Orientation

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

The picture below represents one of three possible
RM modules. All three 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 (white circle) under the Zone address (5) that
when pushed and held has the following functions:

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

2. For the control module, if equipped with the Mod­ bus protocol (RMCxxxxxxxxx1xx) pushing and
holding this button for ~ 6 seconds will cause the
display to reflect P for protocol. Releasing the
button and then pushing it again (within 6 sec
onds) 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 Access module is shipped at address J or
17

Module Status (Slot A,

E

D

B

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® RM System • 7 • Chapter 1 Overview

r

A

Input

r

A

r

A

A

A

A

Function

input sensor

EZ-ZONE RM-Control Module - Input/Output

without 6-digital output card in slot E

none, CT, thermocouple, RTD (100,

Analog Input 1

1k), thermistor (5k,10k,20k,40k),

process (mV, V,

or 1k potentiometer

Digit 4 = 1, 2, 3, 4, 5, 6, 7

mA

)

Digits 1, 2 & 3 = RMC

Current

Transformer

Sense (CT),
Limit or PID

Controller w/

(optional all

loops have

Ramp/Soak

max 25 files,

400 steps total)

Slot A

(optional)

Output 1

none, switched dc/open
collector, 5A mechanical

relay form C, process, or

0.5A SSR form

Digit 5 = A, B, D, E, F, G, H,

J, K, L, M, N, P, R, S, T, U,

switched dc, 5A mechanical

relay form A, or 0.5

If limit, this output must be limit

Y, Z

Output 2

none, 15A NO-

form

ARC,

SSR

Output

Function

off, heat, cool,

alarm, retransmit,

duplex, event or

limit

off, heat, cool,

alarm, event, or

limit

input sensor

input sensor

input sensor

RUI, EZ-ZONE PM &

ST, PC, PLC or HMI

Other RM Modules

none, CT, thermocouple, RTD (100,

none, CT, thermocouple, RTD (100,

none, CT, thermocouple, RTD (100,

Analog Input 2

1k), thermistor (5k,10k,20k,40k),

process (mV, V, mA)

or 1k potentiometer

Digit 6 = 1, 2, 5, 6, 7

Analog Input 3

1k), thermistor (5k,10k,20k,40k),

process (mV, V, mA)

or 1k potentiometer

Digit 8 = 1, 2, 5, 6, 7

Analog Input 4

1k), thermistor (5k,10k,20k,40k),

process (mV, V, mA)

or 1k potentiometer

Digit 10 = 1, 2, 5, 6, 7

Connector Style

Digit 12 = A, F

EIA-485 Communication

Standard Bus

(optional Modbus RTU)

Digit 13 = A, 1

Inter-module Bus

20.4 to 30.8 VAC or VDCPower Supply

Firmware, Parameter Setting

Digit 14 & 15 = AA, AB, 12, xx

Class 1, div II not available with

mechanical relay outputs

none, switched dc/open

Current

Transformer

Sense (CT),
Limit or PID

Controlle

Slot B

(optional)

Current

Transformer

Sense (CT),
Limit or PID

Controlle

Slot D

(optional)

Current

Transformer

Sense (CT),
Limit or PID

Controlle

Slot E

(optional)

collector, 5A mechanical

relay form C, process, or

0.5A SSR form

Digit 7 = A, B, D, E, F, G, H,

J, K, L, M, N, P, R, S, T, U,

none, 15A NO-ARC,

switched dc, 5A mechanical

relay form A, or 0.5A SSR

If limit, this output must be limit

none, switched dc/open
collector, 5A mechanical

relay form C, process, or

0.5A SSR form

Digit 9 = A, B, D, E, F, G, H,

J, K, L, M, N, P, R, S, T, U,

none, 15A NO-ARC,

switched dc, 5A mechanical

relay form A, or 0.5A SSR

If limit, this output must be limit

none, switched dc/open
collector, 5A mechanical

relay form C, process, or

0.5A SSR form

Digit 11 = A, B, D, E, F, G, H,

J, K, L, M, N, P, R, S, T, U,

none, 15A NO-ARC,

switched dc, 5A mechanical

relay form A, or 0.5A SSR

If limit, this output must be limit

Output Status

1

Modbus

Address 1-16

Standard Bus

Zone 1 – 16

Supervisory &

Power Board

Slot C

2
3
4
5
6
7
81516

Some input/output combinations not possible, see ordering matrix

LEDs

Output 3

Y, Z

Output 4

form A

Output 5

Y, Z

Output 6

form A

Output 7

Y, Z

Output 8

form A

9
10
11
12
13
14

Zone and Status

LED

Zone Selection

Button

D

A

S

off, heat, cool,

alarm, retransmit,

duplex, event or

limit

off, heat, cool,

alarm, event, or

limit

off, heat, cool,

alarm, retransmit,

duplex, event or

limit

off, heat, cool,

alarm, event, or

limit

off, heat, cool,

alarm, retransmit,

duplex, event or

limit

off, heat, cool,

alarm, event, or

limit

Indicates Zone

Address

Push to select Zone

Address and Protocol

E

B

M

Card Status in

Slots A, B, D, E

Indicates communica­tions activity, Modbus

or Standard Bus

Indicates I/O

Status

Watlow EZ-ZONE® RM System • 8 • Chapter 1 Overview

r

Input

r

A

r

A

A

Function

input sensor

EZ-ZONE RM-Control Module - Input/Output

with 6-digital output card in slot E

Analog Input 1

none, CT, thermocouple, RTD (100,

), thermistor (5k,10k,20k,40k

1k

process (mV, V, mA)

or 1k potentiometer

Digit 4 = 1, 2, 3, 4, 5, 6, 7

),

Digits 1, 2 & 3 = RMC

Current

Transformer

Sense (CT),

Limit or PID

Controller w/

(optional all

loops have

Ramp/Soak

max 25 files,

400 steps total)

Slot A

(optional)

Output 1

none, switched dc/open
collector, 5A mechanical
relay form C, process, or

0.5A SSR form

Digit 5 = A, B, D, E, F, G, H,

J, K, L, M, N, P, R, S, T, U,

switched dc, 5A mechanical

If limit, this output must be limit

Y, Z

Output 2

none, 15A NO-ARC,

relay form A, or 0.5A SSR

form A

Output

Function

off, heat, cool,

alarm, retransmit,

duplex, event or

limit

off, heat, cool,

alarm, event, or

limit

input sensor

input sensor

v None
v Reset limit
v Load user set
v Clear alarm
v Silence alarm
v All loop alarms off
v Force alarm
v Idle setpoint
v Start autotune
v Manual/auto
v Control mode off
v Remote setpoint enable
v TRU-TUNE+ disable
v Profile disable
v Profile hold/resume
v Start profile number
v Profile start/stop
v Event input
v Math, logic, counter,

compare, timer

RUI, EZ-ZONE PM &

ST, PC, PLC or HMI

Other RM Modules

none, CT, thermocouple, RTD (100,

Analog Input 2

1k), thermistor (5k,10k,20k,40k),

process (mV, V, mA)

or 1k potentiometer

Digit 6 = 1, 2, 5, 6, 7

none,

Analog Input 3

CT, thermocouple,

1k), thermistor (

Digital Output (or Input) 7

Digital Output (or Input) 8

Digital Output (or Input) 9

Digital Output (or Input) 10

Digital Output (or Input) 11

Digital Output (or Input) 12

5k,10k,20k,40k),

process (mV, V, mA)

or 1k potentiometer

Digit 8 = 1, 2, 5, 6, 7

Digit 10 = A

switch contact or volts dc

switch contact or volts dc

switch contact or volts dc

switch contact or volts dc

switch contact or volts dc

switch contact or volts dc

Connector Style

Digit 12 = A, F

EIA-485 Communication

Standard Bus

(optional Modbus RTU)

Digit 13 = A, 1

RTD (

Inter-module Bus

20.4 to 30.8 VAC or VDCPower Supply

Firmware, Parameter Setting

Digit 14 & 15 = AA, AB, 12, xx

Class 1, div II not available with

mechanical relay outputs

100,

Output 3

none, switched dc/open

Current

Transformer

Sense (CT),

Limit or PID

Controlle

Slot B

(optional)

Current

Transformer

Sense (CT),

Limit or PID

Controlle

Slot D

(optional)

Current

Transformer

Sense (CT),

Limit, PID
Controller o
6 - Digital I/O

Slot E

(optional)

Modbus

Address 1-247

Standard Bus

Zone 1 – 16

Supervisory &

Power Board

Slot C

Some input/output combinations not possible, see ordering matrix

collector, 5A mechanical
relay form C, process, or

0.5A SSR form

Digit 7 = A, B, D, E, F, G, H,

J, K, L, M, N, P, R, S, T, U,

switched dc, 5A mechanical

relay form A, or 0.5A SSR

If limit, this output must be limit

Digit 9 = A, B, D, E, F, G, H,

J, K, L, M, N, P, R, S, T, U,

switched dc, 5A mechanical

relay form A, or 0.5A SSR

If limit, this output must be limit

none, switched dc/open collector

none, switched dc/open collector

none, switched dc/open collector

none, switched dc/open collector

none, switched dc/open collector

none, switched dc/open collector

Y, Z

Output 4

none, 15A NO-ARC,

form A

Output 5

none, switched dc/open
collector, 5A mechanical
relay form C, process, or

0.5A SSR form

Y, Z

Output 6

none, 15A NO-ARC,

form A

Digit 11 = C

Digital Output (or Input) 7

Digital Output (or Input) 8

Digital Output (or Input) 9

Digital Output (or Input) 10

Digital Output (or Input) 11

Digital Output (or Input) 12

Output Status

LEDs

1

9

2

10

3

11

4

12
13

5

14 6
15

7

16

8

Zone and Status

LED

Zone Selection

Button

D

A
S M

off, heat, cool,

alarm, retransmit,

duplex, event or

limit

off, heat, cool,

alarm, event, or

limit

off, heat, cool,

alarm, retransmit,

duplex, event or

limit

off, heat, cool,

alarm, event, or

limit

off, heat, cool,

alarm, event or

control

off, heat, cool,

alarm, event or

control

off, heat, cool,

alarm, event or

control

off, heat, cool,

alarm, event or

control

off, heat, cool,

alarm, event or

control

off, heat, cool,

alarm, event or

control

Indicates Zone

Address

Push to select Zone

Address and Protocol

E

B

Card Status in

Slots A, B, D, E

Indicates communica­tions activity, Modbus

or Standard Bus

Indicates I/O

Status

Watlow EZ-ZONE® RM System • 9 • Chapter 1 Overview

Input

A

/

/

A

A

Function

v None
v Reset limit
v Load user set
v Clear alarm
v Silence alarm
v All loop alarms off
v Force alarm
v Idle setpoint
v Start autotune
v Manual/auto
v Control mode off
v Remote setpoint enable
v TRU-TUNE+ disable
v Profile disable
v Profile hold/resume
v Start profile number
v Profile start/stop
v Event input
v Math, logic, counter,

compare, timer,
variable

EZ-ZONE RM-Expansion Module - Input/Output

Digital Input (or Output) 1

switched dc

Digital Input (or Output) 2

switched dc/open collector

Digital Input (or Output) 3

switched dc/open collector

Digital Input (or Output) 4

switched dc/open collector

Digital Input (or Output) 5

switched dc/open collector

Digital Input (or Output) 6

switched dc/open collector

open collector

Digits 1, 2 & 3 = RME

Connector Style

Digit 4 = A, F, R, S

6-Digital I/O

none, 6-DIO, 4-

mechanical relay or

2-SSR

Slot A

(optional)

Digit 5 = A, C, J, K

Digital Output (or Input) 1

switched dc

Digital Output (or Input) 2

switched dc/open collector

Digital Output (or Input) 3

switched dc/open collector

Digital Output (or Input) 4

switched dc/open collector

Digital Output (or Input) 5

switched dc/open collector

Digital Output (or Input) 6

switched dc/open collector

open collector

Output

Function

off, heat, cool,

alarm, event or limit

off, heat, cool,

alarm, event or limit

off, heat, cool,

alarm, event or limit

off, heat, cool,

alarm, event or limit

off, heat, cool,

alarm, event or limit

off, heat, cool,

alarm, event or limit

input sensor

input sensor

input sensor

input sensor

CT Input

CT Input

CT Input

CT Input

4-Mechanical Relays

none, 6-DIO, or 4­mechanical relays

Slot B

(optional)

Digit 6 = A, C, J

2-SSR

none, 6-DIO, 4-

mechanical relay or 2-

SSR

Slot D

(optional)

Digit 7 = A, C, J, K

3 phase CT

none, 6-DIO or QUAD

CT

Slot E

(optional)

Digit 8 = A, C, T

Output 7

5A mechanical relay form A

Output 8

mechanical relay form A

5

Output 9

mechanical relay form A

5

Output 10

5

mechanical relay form A

Output 13

10A Solid State Relay

Output 14

10A Solid State Relay

off, heat, cool,

alarm, event or limit

off, heat, cool,

alarm, event or limit

off, heat, cool,

alarm, event or limit

off, heat, cool,

alarm, event or limit

off, heat, cool,

alarm, event or limit

off, heat, cool,

alarm, event or limit

Output Status

RUI, EZ-ZONE PM &

ST, PC, PLC or HMI

Other RM Modules

Power Supply

Digit 9 & 10 = AA

EIA-485 Communication

Standard Bus

Inter-module Bus

20.4 to 30.8 VAC or VDC

Firmware, Parameter Setting

Digit 11 & 12 = AA, AB, 12, xx
Class 1, div II not available with

mechanical relay outputs

LEDs

1
2

10

3

Standard Bus

Zone 1 – 16

Supervisory & Power

Board

Slot C

11

4

12
13

5
6

14
7
81516

Some input/output combinations not possible, see ordering matrix

Zone and Status

9

LED

Zone Selection

Button

D

A
S

Indicates Zone

Address

Push to select Zone

Address

E

B

Card Status in

Slots A, B, D, E

Indicates communica-

tions activity

Indicates I/O

Status

Watlow EZ-ZONE® RM System • 10 • Chapter 1 Overview

Input

A

Function

PLC, PC or HMI

EZ-ZONE RM-Access Module - Input/Output

EIA-232/485 or Ethernet

with Fieldbus Communication

Protocol

Digits 1, 2 & 3 = RMA

None, Modbus RTU 232/485,

Modbus TCP & EtherNet/IP,

or DeviceNet

(optional)

Digit 6 = A, 2, 3, 5, 6

Modbus Address 1-247

or IP Address or DeviceNet

ddress 0-63

None, Battery Backup

and Real Time Clock

for profile Ramp/Soak

(optional)

Digit 7 = A, B

Connector Style

Digit 4 = A, F, R, S

Future Option

Digit 5 = A

Output

Function

Data Logging

Memory and Config.

Storage

PC

RUI, EZ-ZONE PM &

ST, PC, PLC or HMI

Other RM Modules

Power Supply

Micro SD
Memory Socket

Mini Type B USB Port v1.1

(as device only)

EIA-485 Communication

Standard Bus Zone 1 - 16

Inter-module Bus

20.4 to 30.8 VAC or VDC

Firmware, Parameter Setting

Digit 11 & 12 = AA, AB, 12, xx

Class 1, div II not available with

mechanical relay outputs

Auto Configuration Backup

(optional)

plus USB, plus Datalogging

Digit 8 = A, B, D, U, Y

Supervisory &

Power Board

Future Option

Digit 9 &10 = AA

Zone Selection

Indicates Standard
Bus Zone Address
17

Button

D

S

Push to select
Zone Address

When on datalog
memory full

Indicates Standard
Bus communications
activity

Watlow EZ-ZONE® RM System • 11 • Chapter 1 Overview

Chapter 2:

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

147.07 mm
( 5.8 in )

75.08 mm
( 3.0 in )

15

165 mm
( 6.50 in )

Module Removal Displacement

116.08 mm
( 4.57 in )

Latch in open position

101.60 mm
( 4.00 in )

44.45 mm
( 1.75 in )

51.56 mm
( 2.03 in )

Module Removal Clearance Straight Connectors

155 mm

( 6.10 in )

44.45 mm
( 1.75 in )

116.08 mm
( 4.57 in )

101.60 mm
( 4.00 in )

51.56 mm
( 2.03 in )

75.08 mm
( 3.0 in )

15

°

173.90 mm
( 6.85 in )

Module Removal Displacement

Watlow EZ-ZONE® RM System • 12 • Chapter 2 Install and Wire

Dimensions

Module Removal Clearance *Ring Terminal Connectors

164.9 mm
( 6.5 in )

44.45 mm
( 1.75 in )

80.54 mm
( 3.17 in )

116.08 mm
( 4.57 in )

101.60 mm
( 4.00 in )

51.56 mm
( 2.03 in )

*Ring terminal connectors are optional for the Expansion module only

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

58.67 mm
(2.31 in)

51.56 mm
(2.03 in)

17.53 mm
(.69 in)

60.45 mm
(2.38 in)

32.77 mm
(1.29 in)

15°

184.58 mm
( 7.27 in )

Module Removal Displacement

35.81 mm
(1.41 in)

16.76 mm

35.05 mm

(.66 in)

(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® RM System • 13 • Chapter 2 Install and Wire

Power Supplies

3.583 in

91.00 mm

53.00 mm

2.087 in

1234

-

-

++

DC LO
DC OK

DSP30

LN

56

DSP30

49.00 mm

1.697 in

43.1 mm

0.384 in

9.75 mm

0.559 in

14.20 mm

1.929 in

55.6 mm

2.189 in

32.10 mm

1.264 in

3.583 in

91.00 mm

3.583 in

91.00 mm

1234

-

-

++

DC LO
DC OK

71.00 mm

2.795 in

vout ADJ.

DSP60

DSP60

LN
56

9.75 mm

14.20 mm

43.1 mm

0.384 in

0.559 in

1.697 in

49.00 mm

1.929 in

55.6 mm

2.189 in

32.10 mm

1.264 in

3.583 in

91.00 mm

3.583 in

91.00 mm

1234

-

-

++

DC LO
DC OK

89.9 mm

3.539 in

vout ADJ.

DSP100

DSP100

LN

56

5

43.1 mm

0.384 in

9.75 mm

0.559 in

14.20 mm

1.697 in

49.00 mm

1.929 in

56.8 mm

2.236 in

32.10 mm

1.264 in

3.583 in

91.00 mm

Watlow EZ-ZONE® RM System • 14 • Chapter 2 Install and Wire

RM 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® RM System • 15 • Chapter 2 Install and Wire

Warning: ç

Explosion hazard for hazardous lo­cations. Do not disconnect while the
circuit is live.

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.

Controller Module (RMCxxxxxxxxxxxx)

Slot A Slot B Slot D Slot E Terminal Function Configuration

Inputs

1234

Universal/Thermistor Input
Part # Digits 4, 6, 8, 10

T1
S1

R1

T1
S1

12345678

X1

W1

Y1

X3

W3

Y3

T2
S2
R2

T2
S2

Outputs

X5

W5

Y5

T3
S3
R3

T3
S3

T4
S4
R4

T4S4mA ac

X7

W7

Y7

T_ (RTD) or current +, potentiometer wiper
S_ (RTD), thermocouple -, current - or volts ­R_ (RTD), thermocouple + or volts +

mA ac

common
dc- (open collector)
dc+

Input 1: RMC(1,2,3,4,5,6)xxxxxxxxxxx
Input 2: RMCxx(1,2,5,6)xxxxxxxxx
Input 3: RMCxxxx(1,2,5,6)xxxxxxx
Input 4: RMCxxxxxx(1,2,5,6)xxxxx

Current Transformer
Part # Digits 5, 7, 9, 10

Input 1: RMCx(7)xxxxxxxxxx
Input 2: RMCxxx(7)xxxxxxxx
Input 3: RMCxxxxx(7)xxxxxx
Input 4: RMCxxxxxx(7)xxxxx

Switched DC/Open Collector
Part # Digits 5, 7, 9, 11

Output 1: RMCx(U,D,E,F,G)xxxxxxxxxx
Output 3: RMCxxx(U,D,E,F,G)xxxxxxxx
Output 5: RMCxxxxx(U,D,E,F,G)xxxxxx
Output 7: RMCxxxxxxx(U,D,E,F,G)xxxx

F1
G1
H1

L1
K1

J1

W2

Y2

L2
K2
J2

L2
K2

L2
K2

F3
G3
H3

L3
K3
J3

W4

Y4

L4

K4

J4

L4

K4

L4

K4

F5
G5
H5

L5
K5

J5

W6

Y6

L6
K6
J6

L6
K6

L6
K6

W8Y8dc-

dc+

F7
G7

H7

L7
K7
J7

voltage or current ­voltage +
current +

normally open
common
normally closed

L8K8normally open

common

L8K8normally open

common

Switched DC
Part # Digits 5, 7, 9, 11

Output 2: RMCx(E,K,P)xxxxxxxxxx
Output 4: RMCxxx(E,K,P)xxxxxxxx
Output 6: RMCxxxxx(E,K,P)xxxxxx
Output 8: RMCxxxxxxx(E,K,P)xxxx

Universal Process
Part # Digits 5, 7, 9, 11

Output 1: RMCx(N,P,R,S)xxxxxxxxxx
Output 3: RMCxxx(N,P,R,S)xxxxxxxx
Output 5: RMCxxxxx(N,P,R,S)xxxxxx
Output 7: RMCxxxxxxx(N,P,R,S)xxxx

Mechanical Relay 5 A, Form C

Part # Digits 5, 7, 9, 11

Output 1: RMCx(H,J,K,L,M)xxxxxxxxxx
Output 2: RMCx(L)xxxxxxxxxx
Output 3: RMCxxx(H,J,K,L,M)xxxxxxxx
Output 4: RMCxxx(L)xxxxxxxx
Output 5: RMCxxxxx(H,J,K,L,M)xxxxxx
Output 6: RMCxxxxx(L)xxxxxx
Output 7: RMCxxxxxxx(H,J,K,L,M)xxxx
Output 8: RMCxxxxxxx(L)xxxx

NO-ARC 15 A, Form A
Part # Digits 5, 7, 9, 11

Output 2: RMCx(D,J,Y)xxxxxxxxxx
Output 4: RMCxxx(D,J,Y)xxxxxxxx
Output 6: RMCxxxxx(D,J,Y)xxxxxx
Output 8: RMCxxxxxxx(D,J,Y)xxxx

Mechanical Relay 5 A, Form A
Part # Digits 5, 7, 9, 11

Output 2: RMCx(B,F)xxxxxxxxxx
Output 4: RMCxxx(B,F)xxxxxxxx
Output 6: RMCxxxxx(B,F)xxxxxx
Output 8: RMCxxxxxxx(B,F)xxxx

Watlow EZ-ZONE® RM System • 17 • Chapter 2 Install and Wire

Controller Module (RMCxxxxxxxxxxxx)

Slot A Slot B Slot D Slot E Terminal Function Configuration

Solid-State Relay 0.5 A, Form A

Part # Digits 5, 7, 9, 11

Output 1: RMCx(G,M,S,T,Y,Z)xxxxxxxxxx

L1K1L2K2L3K3L4K4L5K5L6K6L7K7L8K8normally open

common

Output 2: RMCx(G,M,S,T,Y,Z)xxxxxxxxxx
Output 3: RMCxxx(G,M,S,T,Y,Z)xxxxxxxx
Output 4: RMCxxx(G,M,S,T,Y,Z)xxxxxxxx
Output 5: RMCxxxxx(G,M,S,T,Y,Z)xxxxxx
Output 6: RMCxxxxx(G,M,S,T,Y,Z)xxxxxx
Output 7: RMCxxxxxxx(G,M,S,T,Y,Z)xxxx
Output 8: RMCxxxxxxx(G,M,S,T,Y,Z)xxxx

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

Slot C Terminal Function Configuration

98
99

CF

CD

CE

CC
CA
CB

CZ
CX
CY

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

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

B7
D7
D8

D9
D10
D11
D12

Z7

Common
Collector out/DC -input
Collector out/DC -input
Collector out/DC -input
Collector out/DC -input
Collector out/DC -input
Collector out/DC -input
Supply

Digital Inputs/Outputs

Part # Digit 11
Slot A: Option not valid
Slot B: Option not valid
Slot D: Option not valid
Slot E: RMCxxxxxxx(C)xxxx

All

Standard Bus

Part # Digit 13

RMCxxxxxxxxxAxx

Standard Bus or Modbus

Part # Digit 13

RMCxxxxxxxxx1xx

Inter-module Bus

Expansion Module (RMEx-xxxx-xxx)

Slot A Slot B Slot D Slot E Terminal Function Configuration

Inputs/Outputs

1234

B1
D1
D2
D3
D4
D5
D6

Z1

B7
D7
D8

D9
D10
D11
D12

Z7

B13
D13
D14
D15
D16
D17
D18

Z13

B19
D19
D20
D21
D22
D23
D24

Z19

Common
Collector out/DC- input
Collector out/DC- input
Collector out/DC- input
Collector out/DC- input
Collector out/DC- input
Collector out/DC- input
Supply

6 Digital Inputs/Outputs

Part # Digits 5, 6, 7, 8

Slot A: RMEx-(C)xxx-xxx
Slot B: RMEx-x(C)xx-xxx
Slot D: RMEx-xx(C)x-xxx
Slot E: RMEx-xxx(C)-xxx

L1
K1
L2
K2
L3
K3
L4
K4

L7

K7

L8

K8

L9

K9
L10
K10

L13

K13

L14

K14

L15

K15

L16

K16

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

Normally open
Common
Normally open
Common
Normally open
Common
Normally open
Common

4 Mechanical Relay
Part # Digits 5, 6, 7

Slot A: RMEx-(J)xxx-xxx
Slot B: RMEx-x(J)xx-xxx
Slot D: RMEx-xx(J)x-xxx
Slot E: Not a valid option

Watlow EZ-ZONE® RM System • 18 • Chapter 2 Install and Wire

Expansion Module (RMEx-xxxx-xxx)

Slot A Slot B Slot D Slot E Terminal Function Configuration

Inputs/Outputs

L1

L1
K1
K1

L2

L2
K2
K2

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

L13

L13
K13
K13

L14

L14
K14
K14

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

Normally open
Normally open
Common
Common
Normally open
Normally open
Common
Common

Solid-State Relay (SSR)

Part # Digits 5, 7

Slot A: RMEx-(K)xxx-xxx
Slot B: Not a valid option
Slot D: RMEx-xx(K)x-xxx
Slot E: Not a valid option

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

Slot C Terminal Function Configuration

98
99

CF
CD
CE

CZ
CX
CY

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

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+

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

T1
S1
T2
S2
T3
S3
T4
S4

mA ac
mA ac
mA ac
mA ac
mA ac
mA ac
mA ac
mA ac

Three Phase CT

Part # Digit 8
Slot A: Not a valid option
Slot B: Not a valid option
Slot D: Not a valid option
Slot E: RMEx-x(T)xx-xxx

All

Standard Bus

Inter-module Bus

Access Module (RMAx-Axxx-xxx)

Slot A Slot B Slot D Slot E Terminal Function Configuration

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

CB
CA
CC
CB
CA

C5
C3
C2

Modbus RTU EIA-485 T+/R+
Modbus RTU EIA-485 T-/R­Modbus RTU EIA-485 common
Modbus RTU EIA-485 T+/R+
Modbus RTU EIA-485 T-/R­Modbus RTU EIA-232 common
Modbus RTU EIA-232 DB9/pin 2
Modbus RTU EIA-232 DB9/pin 3

Modbus

Part # Digit 6
Slot A: Not a valid option
Slot B: Not a valid option
Slot D: Not a valid option
Slot E: RMAx-A(2)xx-xxx

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -

E8
E7
E6
E5
E4
E3
E2
E1

V+

CH

SH
CL

V-

- - -

- - -

- - -

EtherNet/IP™ and Modbus TCP unused
EtherNet/IP™ and Modbus TCP unused
EtherNet/IP™ and Modbus TCP receive ­EtherNet/IP™ and Modbus TCP unused
EtherNet/IP™ and Modbus TCP unused
EtherNet/IP™ and Modbus TCP receive +
EtherNet/IP™ and Modbus TCP transmit ­EtherNet/IP™ and Modbus TCP transmit +

DeviceNet™ power
Positive side of DeviceNet™ bus
Shield interconnect
Negative side of DeviceNet™ bus
DeviceNet™ power return

Ethernet

Part # Digit 6
Slot A: Not a valid option
Slot B: Not a valid option
Slot D: Not a valid option
Slot E: RMAx-A(3)xx-xxx

DeviceNet

Part # Digit 6
Slot A: Not a valid option
Slot B: Not a valid option
Slot D: Not a valid option
Slot E: RMAx-A(5)xx-xxx

Watlow EZ-ZONE® RM System • 19 • Chapter 2 Install and Wire

Slot C Terminal Function Configuration

98
99

CF

CD

CE

CZ
CX
CY

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+

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

All

Standard Bus

Inter-module Bus

All Modules - Front View -

Standard Connector

Slot D

Slot A

98

power

Slot E

Slot B

t

C

l

o

S

99

Watlow EZ-ZONE® RM System • 20 • Chapter 2 Install and Wire

y

RM System Isolation Blocks

Controller

Power Supply

20.4 to 30.8VÎ (dc)

20.4 to 30.8VÅ (ac)

Low Voltage

Isolation

Low voltage power bus

and

internal bus

No Isolation

No Isolation

Low-voltage

Isolation

Low-voltage

Isolation

Low-voltage

Isolation

Low-voltage

Isolation

Safety Isolation

Digital Inputs and

Outputs

Switched DC, Open

Collector, Process Outputs

Analog Input 1

Analog Input 2

Analog Input 3

Analog Input 4

Mechanical Relay,

Solid-state Relay &

No-arc Relay Outputs

Low-voltage

Isolation

Low-voltage Isolation: 42V peak

Isolation: 1,528VÅ (ac)

Safet

Communications Ports

Watlow EZ-ZONE® RM System • 21 • Chapter 2 Install and Wire

Warning: ç

r

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.

Low Power

t

C

l

o

S

98

99

powe

Communications

t

C

l

o

S

CF

Standard Bus

Common

CD

T- / R-

CE

Common

T+ / R+

CZ

Inter-module Bus

Controller Module Wiring (RMCxxxxxxxxxxxx)

RMC- ALL Model Numbers

• 20.4 to 30.8 V Å (ac) / Î (dc)

• 47 to 63 Hz

• Controller module power consumption, 7 Watts maximum

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

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

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

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

RMC Part # Digit 13 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
network wires in daisy-chain fashion when connecting
multiple devices in a network

-

CX

CY

+

Note:

This Equipment is suitable for use in
CLASS I, DIVISION 2, Groups A, B,
C and D or Non-Hazardous locations
only. Temperature Code T4

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

t

C

l

o

S

CC

Common

Modbus

CA

T- / R-

CB

Common

T+ / R+

CZ

CX

CY

Inter-module Bus

-

+

Input 1, 2, 3, 4 Thermocouple

Slot A, B, D, E

• >20 M 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

-

+

Thermocouple

S_

R_

same alloy as the thermocouple.

Input 1: RMC(1,3,5)xxxxxxxxxxx
Input 2: RMCxx(1,5)xxxxxxxxx
Input 3: RMCxxxx(1,5)xxxxxxx
Input 4: RMCxxxxxx(1,5)xxxxx

RMC Part # Digit 13 is 1

• CC, CA, CB - Modbus and Standard Bus EIA485 Communi­cations (selectable via push button under zone address)

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

• Do not route network wires with power wires. Connect net­work wires in daisy-chain fashion when connecting multiple
devices in a network

RMC Part # Digits 4, 6, 8, 10

Watlow EZ-ZONE® RM System • 22 • Chapter 2 Install and Wire

Warning: ç

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.

Note:

This Equipment is suitable for use in
CLASS I, DIVISION 2, Groups A, B,
C and D or Non-Hazardous locations
only. Temperature Code T4

Warning: ç

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

Input 1, 2, 3, 4 Thermistor

Slot A, B, D, E

• >20 M input impedance

Input 1: RMC(2,4,6)xxxxxxxxxxx
Input 2: RMCxx(2,6)xxxxxxxxx
Input 3: RMCxxxx(2,6)xxxxxxx

S_

Input 4: RMCxxxxxx(2,6)xxxxx

R_

Thermistor

Input 1, 2, 3, 4 RTD

Slot A, B, D, E

S3

S_

R_

S1

2-wire

RTD

Slot A, B, D, E

S2

T_

S3

S_

R_

S1

3-wire

RTD

RMC Part # Digits 4, 6, 8, 10

RMC Part # Digits 4, 6, 8, 10

• platinum, 100 and 1,000  @ 0°C

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

• 20  total lead resistance

• RTD excitation current of 0.09 mA typical. Each ohm of
lead resistance may affect the reading by 0.03°C for 100
Ω.

• For 3-wire RTDs, the S1 lead (usually white) must be
connected to R terminal

• For best accuracy use a 3-wire RTD to compensate for
lead-length resistance. All three lead wires must have
the same resistance.

Input 1: RMC(1,3,5)xxxxxxxxxxx (S1,R1),(T1-S1-R1)
Input 2: RMCxx(1,5)xxxxxxxxx (S2,R2),(T2-S2-R2)
Input 3: RMCxxxx(1,5)xxxxxxx (S3,R3),(T3-S3-R3)
Input 4: RMCxxxxxx(1,5)xxxxx (S4,R4),(T4-S4-R4)

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.

Input 1, 2, 3, 4 Process

Slot A, B, D, E

-

S_

+

R_

volts

Slot A, B, D, E

+

T_

-

S_

amperes

RMC Part # Digits 4, 6, 8, 10

• 0 to 20 mA @ 100  input impedance

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

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

• scalable

Input 1: RMC(1,3,5)xxxxxxxxxxx (S1-/R1+),(T1+/S1-)
Input 2: RMCxx(1,5)xxxxxxxxx (S2-/R2+),(T2+/S2-)
Input 3: RMCxxxx(1,5)xxxxxxx (S3-/R3+),(T3-S3-R3)
Input 4: RMCxxxxxx(1,5)xxxxx (S4-/R4+),(T4+/S4-)

Watlow EZ-ZONE® RM System • 23 • Chapter 2 Install and Wire

Warning: ç

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.

Note:

This Equipment is suitable for use in
CLASS I, DIVISION 2, Groups A, B,
C and D or Non-Hazardous locations
only. Temperature Code T4

Input 1, 2, 3, 4 Potentiometer

RMC Part # Digits 4, 6, 8, 10

Slot A, B, D, E

• Use a 1 k potentiometer.

Input 1: RMC(1,3,5)xxxxxxxxxxx (S1/R1)
Input 2: RMCxx(1,5)xxxxxxxxx (S2/R2)
Input 3: RMCxxxx(1,5)xxxxxxx (S3/R3)
Input 4: RMCxxxxxx(1,5)xxxxx (S4/R4)

CW

S_

R_

CCW

Input 1, 2, 3, 4 Current Transformer

RMC Part # Digits 4, 6, 8, 10

Slot A, B, D, E

• Input range is 0 to 50 mA (ac).

• Current transformer part number: 16-0246

• 100  input impedance

• Response time: 1 second maximum

• Accuracy +/-1 mA typical

Input 1: RMCx(7)xxxxxxxxxx (T1/S1)

T_

S_

Input 2: RMCxxx(7)xxxxxxxx (T2/S2)
Input 3: RMCxxxxx(7)xxxxxx (T3/S3)
Input 4: RMCxxxxxx(7)xxxxx (T4/S4)

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.

Warning: ç

Explosion Hazard - Dry contact closure
Digital Inputs shall not be used in Class
I Division 2 Hazardous Locations unless
switch used is approved for this ap­plication.

Digital Inputs/Outputs 7 through 12

RMC Part # Digit 11 is C

Digital Inputs

Common

DC Input

DC Input

DC Input

DC Input

DC Input

DC Input

Supply

Digital Outputs

Slot E

B7

D7

D8

D9

D10

D11

D12

Z7

Slot E

B7

D7

D8

D9

D10

D11

D12

Z7

Common

Collector out

Collector out

Collector out

Collector out

Collector out

Collector out

Supply

Digital Input Event Conditions

• Dry Contact

- Input inactive when > 100KΩ

- Input active when < 50Ω

• Voltage

- Input inactive when < 2V

- Input active when > 3V

• Six user configurable digital in­puts/outputs per slot

- Slot E DIO 7-12

• Internal supply provides a con-

stant 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 outputs

not to exceed 8A

• Do not connect outputs in parallel

common B7

D7

D8

D9

D10

D11

D12

supply Z7

Open Collector Outputs

Internal Circuitry

Digital Inputs

B7 common

D7

D8

D9

D10

D11

D12

Z7 supply

Watlow EZ-ZONE® RM System • 24 • Chapter 2 Install and Wire

Warning: ç

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.

Output 1, 3, 5, 7 Switched DC/Open Collector

RMC Part # Digit 5, 7, 9, 11 is U, D, E, F or G

Switched DC

• 30 mA dc maximum supply cur­rent

• short circuit limited to <50 mA

• 22 to 32VÎ (dc) open circuit volt­age

• Use dc- and dc+ to drive exter-

Slot A, B, D, E

X_

W_

Y_

common

dc - ( open collector)

dc +

nal solid-state relay.

• DIN-A-MITE compatible

Open Collector

• 100 mA maximum output cur­rent sink

• 30VÎ (dc) maximum supply volt­age

• Any switched dc output can use
the common terminal.

• Use an external class 2 or SELV
power supply to control a dc
load, with the load positive to
the positive of the power supply,
the load negative to the open col­lector and common to the power
supply negative.

Switched DC

Internal Circuitry

Open Collector

Internal Circuitry

common

dc -

W_

dc +

Y_

common

X_

dc -

W_

Load

Power
Supply

Load

Note:

Maintain electrical isolation between
digital input-outputs, switched dc/open
collector outputs and process outputs
to prevent ground loops.

Note:

This Equipment is suitable for use in
CLASS I, DIVISION 2, Groups A, B,
C and D or Non-Hazardous locations
only. Temperature Code T4

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.

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.

Output 2, 4, 6, 8 Switched DC

RMC Part # Digit 5, 7, 9, 11 is E, K, or P

Slot A, B, D, E

W_

Y_

dc -

dc +

Switched DC

• 30 mA dc maximum supply cur­rent

• short circuit limited to <50 mA

• 22 to 32VÎ (dc) open circuit volt­age

• Use dc- and dc+ to drive external
solid-state relay.

• DIN-A-MITE compatible

Output 1-8 Mechanical Relay, Form C

RMC Part # Digit 5, 7, 9, 11 is H, J, K, L or M

Slot A, B, D, E

normally open

L_

common

K_

normally closed

J_

• 5 A at 240VÅ (ac) or 30VÎ (dc)

maximum resistive load

• 20 mA at 24V minimum load

• 125 VA pilot duty at 120/240VÅ
(ac), 25 VA at 24VÅ (ac)

• 100,000 cycles at rated load

• Output does not supply power.

• for use with ac or dc

See Quencharc note.

Switched DC

Internal Circuitry

common

dc ­W_

dc +

Y_

Load

Watlow EZ-ZONE® RM System • 25 • Chapter 2 Install and Wire

Warning: ç

n

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.

Note:

This Equipment is suitable for use in
CLASS I, DIVISION 2, Groups A, B,
C and D or Non-Hazardous locations
only. Temperature Code T4

Output 2, 4, 6, 8 Mechanical Relay, Form A

RMC Part # Digit 5, 7, 9, 11 is B or F

Slot A, B, D, E

• 5 A at 240VÅ (ac) or 30VÎ (dc)

maximum resistive load

• 20 mA at 24V minimum induc­tive load

• 125 VA pilot duty at 120/240V
Å(ac), 25 VA at 24V Å(ac)

• 100,000 cycles at rated load

• Output does not supply power.

• for use with ac or dc

• See Quencharc note.

L_

K_

normally open

common

Output 2, 4, 6, 8 No-ARC Relay, Form A

RMC Part # Digit 5, 7, 9, 11 is D, J or Y

Slot A, B, D, E

• 15 A at 85 to 264VÅ (ac) resis­tive load only

• 2,000,000 cycle rating for no­arc circuit (preliminary)

L_

K_

normally ope

common

• 100 mA minimum load

• 2 mA maximum off state leak­age

• Do not use on dc loads.

• Output does not supply power.

• Do not drive another relay or
solenoid with this output type.

Mechanical Relay

Internal Circuitry

15

10

Output Amps

5

0

20

25

normally open

common

50

403530

45

Ambient Temperatue (oC)

60 65

55

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.

Quencharc 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.

Output 1, 3, 5, 7 Universal Process

RMC Part # Digit 5, 7, 9, 11 is N, P, R, or S

Slot A, B, D, E

volts or current -

F_

volts +

G_

current +

H_

• 0 to 20 mA into 800  maxi­mum load

• 0 to 10VÎ (dc) into 1 k
minimum load

• scalable

• output supplies power

• cannot use voltage and cur­rent outputs at same time

• Output may be used as re­transmit or control.

Process Outputs

F_ negative

G_ volts +

H_ current +

Internal Circuitry

Watlow EZ-ZONE® RM System • 26 • Chapter 2 Install and Wire

Warning: ç

n

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.

Note:

This Equipment is suitable for use in
CLASS I, DIVISION 2, Groups A, B,
C and D or Non-Hazardous locations
only. Temperature Code T4

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.

Quencharc 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.

Outputs 1, 3, 5, 7 Solid-State Relay, Form A

RMC Part # Digit 5, 7, 9, 11 is G, M, S, T, Y or Z

Slot A, B, D, E

L_

K_

normally open

common

• 1 A at 20 to 264VÅ (ac)

maximum resistive load

• 20 VA 120/240VÅ (ac) pilot

duty

• Optical isolation, without
contact suppression

• maximum off state leakage
of 105 microamperes

• Output does not supply
power.

• Do not use on dc loads.

• See Quencharc note.

1.1

1

0.9

0.8

0.7

0.6

0.5

Amps RMS

0.4

0.3

0.2

0.1

0

-20

1 Amp SSR Derating Curve

-10

Ambient Temperatue (oC)

20100

30

40

Outputs 2, 4, 6, 8 Solid-State Relay, Form A

RMC Part # Digit 5, 7, 9, 11 is G, M, S, T, Y or Z

Slot A, B, D, E

L_

K_

normally ope

common

• 1 A at 20 to 264VÅ (ac)

maximum resistive load

• 20 VA 120/240VÅ (ac) pilot

duty

• Optical isolation, without
contact suppression

• maximum off state leakage
of 105 microamperes

• Output does not supply
power.

• Do not use on dc loads.

• See Quencharc note.

1.1

1

0.9

0.8

0.7

0.6

0.5

Amps RMS

0.4

0.3

0.2

0.1

0

-20

1 Amp SSR Derating Curve

-10

Ambient Temperatue (oC)

20100

30

40

Solid-State Relays

Internal Circuitry

60 70

50

Solid-State Relays

Internal Circuitry

60 70

50

L_

normally open

K_

common

Safe Operating Area

L_

normally open

K_

common

Safe Operating Area

Watlow EZ-ZONE® RM System • 27 • Chapter 2 Install and Wire