Watlow 965 Series Manuel utilisateur

Series 965

User's Manual

0600-0003-0000 Rev. C

July 1998

Supersedes: 0600-0003-0000 Rev. B

$10.00

Made in the U.S.A.

Printed on Recycled Paper

Watlow Controls, 1241 Bundy Blvd., P.O. Box 5580, Winona, MN 55987-5580, Phone: 507/454-5300, Fax: 507/452-4507

WatlowControls

1/16 DIN

Microprocessor-Based

Auto-tuning Control

Registered Company

Winona, Minnesota USA

ISO 9001

TOTAL

3YearWarranty

CUSTOMER

SATISFACTION

WATLOW Series 965 User's Manual2

Starting Out

How to Use the Manual

About This Manual

How to Use this Manual

We have designed this user's manual to be a helpful guide to your new Series 965. The

headlines in the upper right and left corners indicate which tasks are explained on that

page.

Notes and Safety Information

We use notes, cautions and warnings throughout this book to draw your attention to

important information.

Notes are printed in bold in the margin to alert you to an important detail.

A Caution symbol (an exclamation point in a triangle) appears with information that is

important to protect equipment and performance. Read and follow all cautions that apply

to your application.

A Warning symbol (a lightning bolt in a diamond) appears with information that is

important to protect people and equipment from damage. Pay very close attention to all

warnings that apply to your application.

Technical Assistance

If you encounter a problem with your Watlow controller, review all of your configuration

information for each step of the setup, to verify that your selections are consistent with

your applications.

If the problem persists after checking all the steps, call for technical assistance: Watlow

Controls at (507) 454-5300, between 7:00 a.m. and 5:30 p.m. Central Standard Time.

Ask for an applications engineer. When you call, have the following information ready:

• the controller's model number ( the 12-digit number is printed on the top of the

stickers on each side of the controller's case and on the top or right side of the circuit

board);

• this user's manual;

• all configuration information;

• the Diagnostics Menu readings.

Warranty and Returns

For information about the warranty covering the Series 965, see page 37.

Comments and Suggestions

We welcome your comments and opinions about this user's manual and the Series 965.

Send them to the Technical Editor, Watlow Controls, 1241 Bundy Blvd., P.O. Box 5580,

Winona,MN55987-5580.Orcall(507)454-5300.Orfaxthemto(507)452-4507.(1459).

NOTE:

Details of a "Note"

appear here, in the

narrow box on the

outside of each

page.

CAUTION:

Details of a "Cau-

tion" appear here, in

the narrow box on

the outside of each

page.

WARNING:

Details of a "Warn-

ing" appear here, in

the narrow box on

the outside of each

page.

Starting Out

3WATLOW Series 965 User's Manual

How to Use the Manual

Contents

Page Item

Chapter 1

4 Starting Out With The Watlow Series 965

4 General Description

Chapter 2

5 Install And Wire The Series 965

5 Panel Cutout

5 Dimensions

5 Installation Procedure

7 Wiring the Series 965

8 Sensor Installation Guidelines

8 Input Wiring

10 Output 1 Wiring

11 Alarm Wiring

12 System Wiring Example

Chapter 3

13 How To Use The Keys And Displays

13 Keys, Displays & LEDs

Chapter 4

14 How To Set Up The Series 965

14 Setting the Input Type DIP Switch

15 Entering Setup Menu

16 Setup Parameters

18 Setup Menu Table

19 Operation Parameters

20 Operation Menu Table

Chapter 5

21 How To Tune And Operate

21 Auto-tuning

22 Manual Tuning

23 Manual and Automatic Operation

24 Using Alarms

25 Error Code Messages

Appendix 1

27 Noise Sources

27 Decreasing Noise Sensitivity

28 Eliminating Noise

Appendix 2

29 Entering the Calibration Menu

30 Restoring Factory Calibration

30 Calibration Menu

31 Calibration Procedures

34 Glossary

36 Index

37 Warranty and Returns

38 Specifications

39 Model Number Information

40 Declaration of Conformity

41 Quick Reference

Figures & Tables

Page Figure Item

4 Series 965 Input & Output Overview 1

5 Multiple Panel Cutout Dimensions 2

5 Series 965 Dimensions 3

6 Mounting, Case Side View & Collar 4

6 Case, Rear View & NEMA 4X Seal Example 5

7 High Voltage Power Wiring 6

7 Low Voltage Power Wiring 7

8 Thermocouple Sensor Input Wiring 8

8 0-5VÎ(dc) Process Sensor Input Wiring 9

9 2- or 3-wire RTD Sensor Input Wiring 10

9 4-20mA Process Sensor Input Wiring 11

10 Switched DC Output Wiring 12

10 5A Mechanical Relay Wiring 13

10 4-20mA Process Wiring 14

10 0.5A Solid-state Relay w/o Suppression Wiring 15

11 Switched DC Output Wiring 16

11 5A Mechanical Relay Wiring 17

11 0.5A Solid-state Relay w/o Suppression Wiring 18

12 System Wiring Example 19

13 Series 965 Keys and Displays 20

14 DIP Switch Location & Orientation 21

15 Entering the Setup Menu 22

15 The Setup Menu 23

19 The Operation Menu 24

21 Auto-tuning at a 200°F Set Point 25

24 Alarm Display Examples 26

29 Entering the Calibration Menu 27

30 Calibration Menu 28

Tables

18 Input Ranges 1

18 Setup Menu Prompts/Description 2

20 Operation Menu Prompts/Description 3

41 Quick Reference Sheet (Perforated)

Starting Out

4Getting Started, Chapter 1

WATLOW Series 965 User's Manual

Starting Out

General Description

Welcome to the Watlow Series 965, a 1/16 DIN microprocessor-based tempera-

ture control. The 965 has a single input which accepts type J, K, T, N or S

thermocouple, RTD or process input.

With dual output, the primary can be heating or cooling while the secondary can

be a control output opposite the primary output (heat or cool), alarm or none.

Both outputs can be selected as either PID or on/off. PID settings include

proportional band, reset/integral, and rate/derivative. Setting the proportional

band to zero makes the Series 965 a simple on/off control with switching

differential selectable under the HSC parameter.

Special 965 features include the NEMA 4X rating, dual four digit displays in

either red or green, optional low volt power supply, auto-tuning for both heat

and cool outputs, ramp to set point for gradual warm-up of your thermal system,

and automatic/manual capability with bumpless transfer.

Operator-friendly features include automatic LED indicators to aid in monitoring

and setup, as well as a calibration offset at the front panel. The Watlow Series

965 automatically stores all information in a non-volatile memory.

Figure 1 -

Series 965 Input and

Output Overview

Single Input -

Type J, K, T, N or S

Thermocouple,

RTD or Process Output 1 -

Heat or Cool

Dual Control Output-

PID or on/off, User Selectable

Output 2 -

Heat, Cool, Alarm

or None

Output 1 or 2

Percent Power Auto-tuning

for Heat &

Cool PID

Settings

Chapter 1

Starting Out With The Watlow Series 965,

A Microprocessor-Based Control

Install and Wire, Chapter 2 5WATLOW Series 965 User's Manual

Installation

Chapter 2

Install and Wire the Series 965

Figure 2 -

Series 965

Multiple Panel

Cutout Dimensions

Installation Procedure

Follow this procedure to mount the Watlow Series 965 temperature control:

1. Make a panel cutout per the dimensions in Figure 2.

2. Remove the 965 chassis from its case. Holding each side of the bezel,

press in firmly on the side grips until the tabs release. Pull the chassis out

of the case and set aside for later installation.

3. Make sure the rounded side of the external case gasket is facing the panel

surface. Check to see that the gasket is not twisted, and is seated within

the case bezel flush with the panel. Place the case in the cutout you just

made. Make sure the gasket is between the panel cutout and the case

bezel. See Figure 4A.

NOTE:

Measurements

between panel

cutouts are the

minimum

recommended.

Figure 3 -

Series 965

Dimensions

2.1"

(53 mm)

Panel Cutout

Your Panel

Thickness

0.06" to 0.38"

(1.5 to 9.7 mm)

1.77" to 1.79"

(44.96mm to 45.47mm)

1.77" to 1.79"

(44.96mm

to 45.47mm)

0.38"

(9.65mm)

Minimum

0.85"

(20mm)

0.40"

(10mm) 1.21"

(

31mm

)

4.1"

(104mm)

4.7"

(119mm)

1.76"

(45mm)

NOTE: For rapid

mounting, use

Greenlee punch

#60020 and die

#60021, or hand

hydraulic unit, Kit

#7306. All available

from Grainger.

Install and Wire, Chapter 26WATLOW Series 965 User's Manual

Installation

NOTE:

To guarantee a

proper NEMA 4X

seal, make sure

the gasket

between the panel

and the rim of the

case is not twisted

and is seated

properly.

PRESS FIRMLY.

Figure 4 -

Mounting, Case Side

View & Collar Cross

Section

Figure 5 -

Case Rear View and

NEMA 4X Seal

Example

0 to 0.019 space

(0 to 0.483 mm)

Bezel

Panel

External Gasket Mounting Collar

Ridges

Teeth

Tabs

When removing the mounting collar, we suggest sliding a thin tool such as

a putty knife or screwdriver under all three tabs on each side at once and

pulling it back off the case.

5. Insert the control chassis into its case and press the bezel to seat it. Make

sure the inside gasket is also seated properly and not twisted. The hard-

ware installation is complete. Proceed to the wiring section from here.

4. While pressing the front of the case firmly against the panel, slide the

mounting collar over the back of the control. The tabs on the collar must

line up with the mounting ridges on the case for secure installation. See

Figure 4A again. Slide the collar firmly against the back of the panel getting

it as tight as possible. Make sure you cannot move the case within the

cutout; if you can you do not have a NEMA 4X seal.

Now let's make sure we have a tight seal. Use your thumb to lock the tabs

into place while pressing the case from side to side. Don't be afraid to apply

enough pressure to install the control. The tabs on each side of the collar

have teeth which latch into the ridges. See Figure 4B. Each tooth is stag-

gered at a different height, so only one of the tabs on each side are ever

locked into the ridges at any time.

Looking at Figure 5, you see that the tabs on one side of the collar corre-

spond with those on the opposite side. Make sure that the two correspond-

ing tabs are the only ones locked in the ridges at the same time. If the

matching tabs are not holding the case at the same time you will not have

a NEMA 4X seal. You can make a visual check, or use your finger nail to

pull out on each tab. Only one on each side is engaged, and they must

be corresponding as in Figure 5. The space between the bezel and

panel must be between 0 and 0.019" (0.48 mm).

NEMA 4X Seal Example.

Make sure that the two correspond-

ing tabs below are locked in the

ridges at the same time.

Mounting Collar

Cross Section

(notice the offset teeth

on each tab)

Install and Wire, Chapter 2 7

WATLOW Series 965 User's Manual

PowerWiring

WARNING:

To avoid potential

electric shock, use

National Electric

Code (NEC) safety

practices when

wiring and connect-

ing this unit to a

power source and to

electrical sensors or

peripheral devices.

NOTE:

Taking the unit out

of the case is not a

normal operating

condition and

should only be done

by a qualified

maintenance

installation techni-

cian. Power to the

case should be

disconnected before

removing or install-

ing the controller

into its case.

Figure 7 -

Low Voltage

Power Wiring

Figure 6 -

High Voltage

Power Wiring

How to Wire the Series 965

The Series 965 wiring is illustrated by model number option. Check the unit

sticker on the control and compare your model number to those shown here

and also the model number breakdown in the Appendix of this manual.

All outputs are referenced to a de-energized state. The final wiring figure is a

typical system example.

When you apply power without sensor inputs on the terminal strip, the Series

965 displays [----] in the upper display, and a [```0] in the lower display,

except for 0-5VÎ(dc) or 4-20mA process input units. Press the A/M key twice,

and [ER`7] is displayed for one second. This error indicates an open sensor or

A/D error. Remove power to the control and connect the sensor properly, see

pages 8 and 9. All wiring and fusing must conform to the National Electric Code

and to any locally applicable codes as well.

LowVoltage

Model # 965A - 3 1 - 00 .

WARNING:

If high voltage is

applied to the low

voltage unit,

irreversible damage

will occur.

12-24V‡(ac/dc)

HighVoltage

Model # 965A - 3 0 - 00 .

100 to 240 VÅ(ac),

nominal

(85 to 264 actual)

Install and Wire, Chapter 2

8WATLOW Series 965 User's Manual

Input Wiring

DIP Switch

Orientation

0-5VÎ(dc) Process Input

Figure 9 -

0-5VÎ(dc) Process

Sensor Input Wiring

Figure 8 -

Thermocouple

Sensor Input Wiring

Input impedance: 10KΩ

Thermocouple Input

Extension wire for thermocouples must be of the same alloy as the thermo-

couple itself to limit errors.

Sensor Installation Guidelines

We suggest you mount the sensor at a location in your process or system

where it reads an average temperature. Put the sensor as near as possible to

the material or space you want to control. Air flow past this sensor should be

moderate. The sensor should be thermally insulated from the sensor mounting.

See Chapter 4 for more information on DIP switch location and orientation.

DIP Switch

Orientation

CAUTION:

Process input does

not have sensor

break protection.

Outputs can remain

full on.

T/C

NOTE:

When an external

device with a non-

isolated circuit

common is con-

nected to the 4-

20mA or dc output,

you must use an

isolated or un-

grounded thermo-

couple.

Install and Wire, Chapter 2 9

WATLOW Series 965 User's Manual

RTD, 2- or 3-wire

Input Wiring

DIP Switch

Orientation

4 - 20mA Process Input

DIP Switch

Orientation

Figure 11 -

4-20mA Process

Sensor Input Wiring

Figure 10 -

2- or 3-wire RTD

Sensor Input Wiring

Input impedance: 5Ω

There could be a + 2°F input error for every 1Ωof lead length resistance when

using a 2-wire RTD. That resistance, when added to the RTD element resis-

tance, will result in erroneous input to the instrument. To overcome this prob-

lem, use a 3-wire RTD sensor, which compensates for lead length resistance.

When extension wire is used for a 3-wire RTD, all wires must have the same

electrical resistance (i.e. same gauge, copper stranded, same length).

CAUTION:

Process input does

not have sensor

break protection.

Outputs can remain

full on.

3-wire RTD

2-wire RTD

Jumper

Terminals

3 and 5.

-2

Idc

Install and Wire, Chapter 2

10 WATLOW Series 965 User's Manual

Switched DC Output

Model # 965A - 3 C- 00 .

Output 1 Wiring

Figure 12 -

Switched dc Output

Wiring

Figure 15 -

0.5 Amp Solid-state

Relay Without

Contact Suppression

Wiring

Mechanical Relay Without Contact Suppression, Form C, 5 Amp

Model # 965A - 3 D- 00 .

External

Load

Figure 14 -

4-20mA Process

Wiring

Solid-state Relay Without Contact Suppression, 0.5 Amp

Model # 965A - 3 K- 00 .

External

Load

Maximum load

resistance:

800Ω

Process, 4-20mA

Model # 965A - 3 F- 00 .

NOTE:

Switching inductive

loads (relay coils,

solenoids, etc.) with

the mechanical

relay, switched dc or

solid-state relay

output options

requires using an

R.C. suppressor.

Watlow carries the

R.C suppressor

Quencharc brand

name, which is a

trademark of ITW

Pakron. Watlow Part

No. 0804-0147-0000.

Figure 13 -

5 Amp Mechanical

Relay Wiring

NOTE:

When an external

device with a non-

isolated circuit

common is connected

to the 4-20mA or

Switched dc output,

you must use an

isolated or un-

grounded thermo-

couple.

External

Load

COM

8NC

Fuse

Customer Supplied

Quencharc

unregulated

V+

V—

Internal Circuitry

External

Load

SS1

Fuse L1

Custommer Supplied

Quencharc

Ce manuel convient aux modèles suivants

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