Watlow PM LEGACY Series User manual

Express PID Controller

Registered Company

Winona, Minnesota USA

ISO 9001

TOTAL

3 Year Warranty

CUS

TISF

CTI

1241 Bundy Boulevard., Winona, Minnesota USA 55987

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

User Guide

Document No. 10-42071, Rev. -, July 2020. Made in the U.S.A.

1/32 DIN

Available Soon

PM3 PM6

For Configurations:

PM(3,6)C _ _ _ -_ AAAH_ _

PM3/PM6 LEGACY™ Express PID Controller • 2 •

Warranty

The PM3/PM6 LEGACY™ Express Controller 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. 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 main-

tain 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 representa-

tive, by e-mailing your questions to wintechsupport@watlow.com or by dialing +1 (507) 494-5656

between 7 AM and 5 PM. Central Time USA & Canada. Ask for an

Applications Engineer. Please have the complete model number available when calling. Please

have the following information available when calling:

• Complete model number

• All configuration information

• User's Guide

• Factory Page

Copyrights

The PM3/PM6 LEGACY™ Express PID Controller User Guide is copyrighted by Watlow Electric,

Return Material Authorization (RMA)

1. If you are an End User, and this PM is installed in an OEM System, please contact the OEM

to get the PM repaired. If you are an OEM or Watlow Distributor, please go to www.watlow.com/

rma to start the RMA process. Watlow Customer Service will then respond back with the RMA

number via an email.

2. A Return Merchandise Authorization Number (RMA) 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 cred-

it for material returned. In cases of customer misuse, we will provide repair costs and request a

pur-chase 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.

PM3/PM6 LEGACY™ Express PID Controller • 3 •

Table of Contents

Table of Contents ................................................................................................................ 3

Availalble Literature and Resources .................................................................................... 3

Safety Instructions................................................................................................................ 4

Overview .............................................................................................................................. 5

Feature and Beneﬁts ............................................................................................................ 7

Installation ............................................................................................................................ 8

Wiring Diagrams ................................................................................................................... 9

Terminal Deﬁnitions .............................................................................................................. 11

Keys and Display Descriptions ............................................................................................ 16

Menu and Keypad Basics .................................................................................................... 17

Operations Menu ................................................................................................................. 18

Set Up Menu ........................................................................................................................ 21

Speciﬁcations ....................................................................................................................... 27

Ordering Information ............................................................................................................ 29

CE Declaration of Conformity ............................................................................................. 30

Bluetooth Enabled Product Statement ................................................................................ 31

Available PM LEGACY™ Series Literature and Resources

Contact Watlow Directly: For technical assistance contact Watlow at:

www.watlow.com Or call at: 1-800-WATLOW2 Or

(1-800-928-5692) Or email at: wintechsupport@watlow.com

PM LEGACY™ Express PID

Controller Quick Start Guide

Document No. 10-41691 -

Part No. 2126-4397

A Quick Start Guide to help you get your controller set up is

available for download at https://www.watlow.com/resources-

and-support/Technical-Library/.

PM LEGACY™ Series

Panel Mount Controller

Speciﬁcation Sheet

This Speciﬁcations Sheet describes the PM LEGACY™ Series

hardware options, features, beneﬁts and technical speciﬁca-

tions. Available at: https://www.watlow.com/resources-and-

support/Technical-Library/

PM3/PM6 LEGACY™ Express PID Controller • 4 •

Safety Information

We use note, caution and warning symbols throughout this book to draw your attention to impor-

tant 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 equip-

ment 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 applica-

tion.

The electrical hazard symbol, 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 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.

Do not throw in trash, 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 Divi-

sion 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 Confor-

mity 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 Tem-

perature Indicating-Regulating Equipment per CSA C22.2 No. 24. See: www.

csa-international.org

PM3/PM6 LEGACY™ Express PID Controller • 5 • Specifications

Overview

A Conceptual View of the PM

The ﬂexibility of the PM software and hardware

allows for 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.

It is useful to think of the controller in terms

of functions; there are internal and external

functions. An input and an output would be

considered external functions where the limit,

PID or alarm function would be an internal

function. Information ﬂows from an input func-

tion to an internal function to an output func-

tion when the controller is properly conﬁgured.

A single PM controller can carry out several

functions at the same time, for instance (but

not limited to), PID control, checking for a limit

condition, monitoring for several different alarm

situations, etc... To ensure that the application

requirements are being met, it is important to

ﬁrst give thought to each external process and

then conﬁguring the controller’s internal func-

tions to properly accommodate the application

requirements.

Inputs

The inputs terminal connections are located on

the back side of the controller. See Figure 2.

The controller, properly wired and conﬁgured

will provide the information that any given

programmed procedure can act upon. In a

simple form, 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 thermocou-

ple or RTD to read the process temperature.

It can also read volts, current or resistance,

allowing it to use various devices to read a

wide array of values. The settings in the Analog

Input Menu (Setup Page) for each analog input

must be conﬁgured to match the device con-

nected to that input.

Figure 1: PM6 Controller Shown Here

A PM with digital input/output (DIO) hardware

includes two sets of terminals where each of

which can be used as either an input or an out-

put. Each pair of terminals must be conﬁgured

to function as either an input or output with the

direction parameter in the Digital Input/Output

Menu (Setup Page). Each digital input reads

whether a device is active or inactive.

The Function Key on the front panel of the PM

also operates as a digital input by toggling

the function assigned to it in the Digital Input

Function parameter in the Function Key Menu

(Set-up Page).

Figure 2: Thermocouple Input Wiring Example

PM3/PM6 LEGACY™ Express PID Controller • 6 • Specifications

(Overview Continued)

Internal Functions

The controller will use input signals to calculate

a value and then perform an operation. A sam-

ple of some functions may be as simple as:

• Detect a failure of the primary sensing device

and trip a contactor to remove power from the

heating element.

• Reading a digital input to set a state to true

or false.

• Evaluate an incoming temperature to deter-

mine an alarm state (on or off).

• Compare an input value to the set point and

calculate the optimal power for a heater.

To set up a function, it’s important to deﬁne

the source, or instance, to use. For example, if

the control is equipped with DIO they can be

conﬁgured to respond to an alarm. If conﬁg-

ured as such, the digital output must be tied

to the desired alarm instance (1 to 4). Using

this as an example, the Function for the digital

output would be deﬁned as an Alarm where

the Instance would be selected as 1, 2, 3, or 4

corresponding to the alarm instance that will

drive the output.

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

The Output Wire Terminals are located on

the back side of the controller. See Figure 3.

The Outputs properly wired and conﬁgured

can perform various functions or actions in

response to information provided by a function

such as, removal of the control voltage to a

contactor; operating a heater, turning a light on

or off, unlocking a door, etc.

Assign a Function to any available output on

the Setup Page within the Output Menu or

Digital Input/Output Menu. Then select which

instance of that function will drive the selected

output. For example, you might assign an

output to respond to alarm 4 (instance 4).

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 con-

nected to digital output 5.

Figure 3: Output Wiring Example

PM3/PM6 LEGACY™ Express PID Controller • 7 • Specifications

Features and Beneﬁts

Simpliﬁed Menu

• Fits basic applications with a user-friendly

interface supported by two menus and a

streamlined list of parameters.

• Eliminates user complexity often experienced

with more advanced controllers and unneces-

sary features.

• Reduces user training costs and user pro-

gramming errors

PID Auto-Tune

• Provides auto-tune for fast, efﬁcient start-up

Standard Bus Communications

• Allows easy product conﬁguration via PC

communications protocol and free software.

• Saves time, simpliﬁes programming process

and improves reliability of controller setup

Function Key

• Enables simple, one-touch operation of

user-deﬁned, repetitive activities

Touch-Safe Package

• Increases installer and operator safety

• Complies with IP2X requirements

EZ-LINK™ Mobile Application for iPhone®

and Android™ (When Bluetooth option is

ordered)

• Expedites controller setup with intuitive

navigation

• Simpliﬁes setting parameters with plain text

names and descriptions

• Connects quickly and easily via Bluetooth®

wireless communications

SMOOTH TOUCH™ Keypad

• Eliminates contamination points on the front

of the controller.

• Prevents premature failure of mechanical

components

• Creates a better seal on front panel.

• Ensures an easy to clean surface.

Agency approvals: UL® listed, CSA, CE,

RoHS, W.E.E.E., SEMI F47-0200, Class 1,

Div. 2 rating on selected models

• Assures prompt product acceptance

• Reduces end product documentation costs

P3T Armor Sealing System

• Compiles to NEMA 4X, IP66 and IP67

speciﬁcations

• Allows controller to be cleaned and washed

• Certiﬁed UL® 50 independent to NEMA 4X

speciﬁcation

Consistent Termination Labeling (CTL)

Connection System

• Simpliﬁes switching between products

• Speeds up user’s system documentation

Three-Year Warranty

• Demonstrates Watlow’s reliability and

product support

High-Amperage Power Control Output (1/16

DIN only)

• Drives 15 ampere resistive loads direct

• Reduces component count

• Saves panel space and simpliﬁes wiring

• Reduces cost of ownership

PM3/PM6 LEGACY™ Express PID Controller • 8 • Install and Wire

Installation

PM6 Controller

Mounting Screw

Mounting Panel

Figure 1: PM6 Installation

1. For a PM3 Controller, make the panel

cutout using the measurements shown on

page 9.

2. For a PM6 Controller, make the panel

cutout using the measurements shown on

page 10.

3. Remove the green terminal connectors and

the mounting collar assembly.

4. Insert the controller into the panel cutout

from the front. See Figure 2. The controller

shown is a PM6 Controller.

5. Orient the collar base so the ﬂat side faces

front and the screw openings are on the

sides (see ﬁgure 2), then slide the base over

the back of the controller..

6. Slide the mounting bracket over the

controller with the screws aligned to the

collar base. See Figure 2. Push the bracket

gently but ﬁrmly until the hooks snap into

the slots in the case.

7. Tighten the two #6-19 x 1.5 in. screws

with a phillips screwdriver until the device

is ﬂush to the panel (3 to 4 in-lbs torque).

See Figure 3.

8. Reinstall the terminal connectors to their

original locations.

Figure 2: Slide Mounting Bracket over

Controller

Figure 3: Tighten the Mounting Screws

PM3/PM6 LEGACY™ Express PID Controller • 9 • Install and Wire

Installation and Wiring

1/32 DIN (PM3) Recommended Panel Spacing

45.2 mm

(1.78 in)

22.4 mm

(0.88 in)

21.6 mm

(0.85 in)

21.6 mm

(0.85 in)

panel thickness 1.53 to 9.52 mm

(0.060 to 0.075 in)

1/32 DIN (PM3) Dimensions

4.22in

10.2mm

0.40in

1.38in

35.2mm

Mounting Panel

2.10in

53.3mm

1.22in

30.9mm

107.2 mm

PM3/PM6 LEGACY™ Express PID Controller • 10 • Install and Wire

10.16

0.40

4.22

107.18

1.38

35.16

Mounting Panel

53.34

2.10

53.34

1/16 DIN (PM6) Dimensions

45.2 mm

(1.78 in)

45.2 mm

(1.78 in)

21.5 mm

(0.85 in)

21.6 mm

(0.85 in)

panel thickness 1.53 to 9.52 mm

(0.060 to 0.075 in)

1/16 DIN (PM6) Recommended Panel Spacing

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