Watlow Electric 988, 989, 986m, 987 User Manual

Download

Series 988

1/8 DIN Microprocessor-Based Temperature/Process Controller

0600-0009-0001 Rev V

December 1997 Supersedes: W988-XUMN Rev U00

$10.00

Made in the U.S.A.

Printed on Recycled Paper 10% Postconsumer Waste

User’s Manual

Includes 986, 987, 988 and 989

User Levels:

• New User........................... go to Introduction

• Experienced User................... go to page 4.1

Installers:

• Set-up..................................... go to page 1.1

• Wiring & Installation................ go to page 2.1

Watlow Controls

1241 Bundy Blvd., P.O. Box 5580, Winona, MN, USA 55987-5580, Phone: (507) 454-5300, Fax: (507) 452-4507

9 6

TOTAL

3 Y ear W arranty

ISO 9001

Registered Company

Winona, Minnesota USA

Series 988

User’s Manual

Includes 986, 987, 988 and 989

The

Series 988 User’s Manual

WATLOW Series 988 User’s ManualTable of Contents

Table of Contents

Introduction to the Watlow Series 988 Controllers

ii Using this Manual

ii Document Every Step iii Notes, Cautions and Warnings iii Technical Assistance iii We Value Your Feedback

Chapter 1 Hardware Setup

1.1 Dip Switch Locations and Functions

Chapter 2 Installation and Wiring

2.1 Panel Cutout and Dimensions

2.2 Installing the Series 988

2.4 Wiring the Series 988

2.4 Input-to-output Isolation

2.4 Power Wiring

2.5 Sensor Installation Guidelines

2.6 Wiring Example

2.8 Input 1 Wiring

2.9 Input 2 Wiring

2.11 Event Input 1 Wiring

2.12 Output 1 Wiring

2.13 Output 2 Wiring

2.14 Output 3 Wiring

2.15 Output 4 Wiring

Chapter 3 Front Panel and Display Loop

3.1 Keys and Displays

3.2 Display Loop

Chapter 4 The Setup Menus

4.1 Navigating the Setup Menus

4.2 Input Menu

4.18 Output Menu

4.34 Global Menu

4.44 Communications Menu

Chapter 5 The Operation Menus

5.1 Navigating the Operation Menus

5.2 System Menu

5.9 PID A and PID B Menus

Chapter 6 The Factory Menus

6.1 Navigating the Factory Menus

6.2 Panel Lockout Menu

6.7 Diagnostics Menu

6.13 Calibration Menu

Chapter 7 Tuning, Manual Operation, Alarms and Error Codes

7.1 Auto-tuning (Heat and/or Cool)

7.2 Manual Tuning

7.4 Manual and Automatic Operation

7.5 Changing the Output 3 Alarm Jumper

7.6 Using Alarms

7.8 Error Code E1 and E2 Messages

7.9 Error Code Actions

Chapter 8 General Software

8.2 Burst Fire

8.4 Communications

8.6 Dead Band

8.8 Digital Events

8.10 Heater Current

8.12 Input Filter

8.14 Input Linearization

8.16 Ramp to Set Point

8.18 Remote Set Point

8.20 Retransmit

8.22 Slidewire Feedback

Chapter 9 Enhanced Software

9.2 Cascade

9.6 Differential

9.8 Dual PID Sets

9.10 Duplex

9.12 Ratio

Appendix

A.2 Glossary A.4 Specifications A.5 Warranty and Returns A.6 Index A.10 Menu Overview A.11 Model Number – Ordering Information A.12 Declaration of Conformity

WATLOW Series 988 User’s Manual i

Introduction

Introduction to the

W atlow Series 988 Controllers

Figure Int.1 The Series 988 Controllers.

Watlow’s Series 988 controllers set a new standard in the controller industry by packing an impressive array of features into an 1/8-DIN package. No other controller offers the flexibility, compact size and durability of the Series 988. It can control a wide variety of temperature and process applications, with a broad range of input and output options that allow control of virtually any process variable.

The Series 988 is the only 1/8 DIN controller that can provide single-unit cascade control of a process. Its other features include heater current monitoring, remote set point input, ratio control and valve control through slidewire feedback. The Series 988 also delivers expanded auto-tuning capabilities, increased alarm functionality and several unique control algorithms.

When we refer to the “Series 988” controller, we refer also to the horizontal and low-voltage versions of the Series 988: the 986, 987, 988 and 989. We recommend that you read all of this manual’s introduction to familiarize yourself with the conventions and content of this manual and the steps to setting up a Series 988 controller. Make sure you understand the “Caution” and “Warning” symbols we use in the book.

ii WATLOW Series 988 User’s Manual

Introduction

Using this Manual

This manual provides the information you will need to install and operate a Series 988 controller.

If you need information about Series 988 configurations and model numbers, refer to the Appendix of this manual or, for more detailed information, to Optimizing Your Process System with the Series 988 Controller: An

Application Guide for the Watlow Series 988 Family.

If your Series 988 controller will be used for data communications, you will also need our communications manual, Data Communications with the Watlow Series 988 Family of Controllers (green cover).

Series 988 controllers are calibrated in the factory, but if you need to do periodic calibration you will need our calibration manual, Calibrating Watlow Process Controllers, (blue cover).

This manual explains the five steps of setting up a Series 988 controller:

1. Set and document all of the DIP switches, if applicable: Chapter 1.

2. Mount the controller: Chapter 2.

3. Wire and document the controller wiring: Chapter 2.

4. Configure and document the controller software: Chapters 3-6.

5. Run, test and adjust your application. Update documentation.

Chapters 7 and 8 and the Appendix provide detailed advice, definitions

and specifications along with application examples to help you optimize the safety and performance of your application. Use the Table of Contents and Index to find specific information.

Document Every Step

The Series 988 provides powerful and complex features. Carefully document each step of the setup and any subsequent changes. This will make it much easier to change, adjust and troubleshoot your application.

Make the configuration documentation available to engineers and technicians, on all shifts, who may need to work with the Series 988. We provide space in this manual to record configurations. You may prefer to photocopy the blank forms and keep them in a separate binder. However you maintain your documentation, be sure to replace all old copies of the documentation with updated versions whenever the controller configuration is changed.

NOTE:

The Menu Overview

in the Appendix shows all the menus and prompts.

NOTE: The 12-digit number is printed on the top of the stickers on each side of the controller’s case and on the righthand or top circuit board.

Introduction

WATLOW Series 988 User’s Manual iii

Introduction

Notes, Cautions and Warnings

We use note, caution and warning symbols throughout this book to draw your attention to important operational and safety information.

A bold text “NOTE” marks a short message in the margin to alert you to an important detail.

A bold text “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 bold text “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 ç symbol (an exclamation point in a triangle) precedes a general CAUTION or WARNING statement.

The Ó symbol (a lightning bolt in a triangle) precedes an electric shock hazard CAUTION or WARNING safety statement.

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, you can get technical assistance by calling Watlow Controls at (507) 454-5300, between 7 a.m. and 5 p.m. CST, and asking for an applications engineer. When you call have the following information on hand: 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 right-hand or top circuit board); your user’s manual; all configuration information; and the Diagnostics Menu readings.

We Value Your Feedback

Your comments and suggestions on this manual are welcome. Please send them to, Technical Writer, Watlow Controls, 1241 Bundy Blvd., P.O. Box 5580, Winona, MN 55987-5580 or call (507) 454-5300 or fax (507) 452-

4507.(1233)

WATLOW Series 988 User’s Manual 1.1

Hardware Setup, Chapter 1

Chapter 1 Hardware Setup

DIP Switch Locations and Functions

The Watlow Series 988 has at least one and as many as six dual in-line package (DIP) switches inside the controller, depending on the model number. They allow users to configure the controller for a variety of input sensors, to provide power for external signal conditioners or to lockout front panel access to some functions.

To set any DIP switch:

• Remove the controller from the case by pressing firmly on the two release tabs on one side or the top of the bezel until they unsnap. Then firmly press the two release tabs on the opposite side or the bottom of the control until they unsnap. You will need to gently rock the bezel back and forth to release it from the chassis.

• Use the illustrations on the following pages to locate and set each DIP switch.

Figure 1.1 - Press the release tabs to remove the controller chassis.

Release

Tabs

PROCESS

L1 L2 L3 L4

DEV

% OUT

SERIES 988

DISPLAY

AUTO

MAN

MODE

Release

Tabs

PROCESS

L1 L2 L3 L4

Release

Tabs

DEV

% OUT

DSPY

MODE

AUTO

MAN

SERIES 989

Release

Tabs

1.2 WATLOW Series 988 User’s Manual

Hardware Setup, Chapter 1

DIP Switches

Figure 1.2 Input DIP switches.

Input 1 Input 2

(98 _ _-2_ _ _-_ _ _ _)(98 _ _-_2_ _-_ _ _ _)

RTD (100 Ω)

thermocouple: R, S or B

thermocouple: J, K, T, N, E, C, D, Pt2

or 0-50mV (high impedance)

0-20 or 4-20mA; 0-5, 1-5 or 0-10V

↑

123

O N

↑

123

↑

123

O N

↑

123

↑

123

O N

↑

123

↑

123

O N

↑

123

Controller Chassis

Rear View

Input 1 DIP

Input 2 DIP

1. Set the input DIP switches to match the sensors you are using in your application. Only controllers with model number 98_ _2_ _ _-_ _ _ _ or 98_ __2_ _-_ _ _ _ have an input DIP switch.

NOTE: The Input 2 DIP switch is mounted upside down.

NOTE: Only controllers with the indicated model numbers have these DIP switches.

DIP Switches

WATLOW Series 988 User’s Manual 1.3

Hardware Setup, Chapter 1

Output 2

Option B oa r d a nd D IP

Output 4

Option B oa r d a nd D IP

Con t ro ller Chassis

Top View (986 & 988)

Left-side View (987 & 989)

Output 3

Option B oa r d a nd D IP

Output 1

Option Board

offon

off

Figure 1.3 External signal conditioner power supply DIPs.

Output 2 Output 3 Output 4

(98 _ _-_ _ _T-_ _ _ _) (98 _ _-_ _ _ _-T_ _ _) (98 _ _-_ _ _ _-_T_ _)

20V ± 5% @ 30mA

12V ± 5% @ 30mA

5V ± 5% @ 30mA

2. Set DIP switches for outputs equipped with an external signal conditioner power supply. Only controllers with model number 98_ _-_ _ _T-_ _ _ _, 98_ _-_ _ _ _-T_ _ _ or 98_ _-_ _ _ _-_T_ _ have an external signal conditioner power supply.

NOTE: For other voltages or current settings contact the factory.

3. When the DIP switches are set, gently insert the controller chassis into the case and push it firmly into place until all four tabs snap into place.

NOTE: Only controllers with the indicated model numbers have these DIP switches.

O N

↑

O N

↑

O N

↑

O N

↑

O N

↑

O N

↑

O N

↑

O N

↑

O N

↑

1.4 WATLOW Series 988 User’s Manual

Hardware Setup, Chapter 1

DIP Switches

Figure 1.4 Lockout DIP switch.

no hardware lockout or (Switch 1 has no effect.)

lockout Setup and Factory menus or (Switch 1 has no effect.)

4. The lockout DIP switch hides the Setup Menus (Input, Output, Global and Communications) and the Factory Menus (Panel Lockout, Diagnostics and Calibration). All units have a lockout DIP switch.

CAUTION: The lockout DIP switch makes the Setup and Factory menus unavailable. Configure all the Setup and Factory menus before locking them out. Failure to do so could result in damage to equipment in the event of a setup error.

O N

↑

O N

↑

Input

[InPt]

[`SEt]



Panel



Lockout

[PLOC]

[Fcty]

Output Global

[OtPt]

[`SEt]

[GLbL]

[`SEt]



Diagnostics Calibration



[diAG]

[Fcty]



[`CAL]

[Fcty]

Communications

[CO

[`SEt]

  

O N

↑

O N

↑

  

WATLOW Series 988 User’s Manual 2.1

Installation and Wiring, Chapter 2

Chapter 2 Installation and Wiring

Figure 2.1 Series 988 and Series 989 dimensions and terminal number layout.

NOTE: Adjustable mounting brackets can be side-mounted.

NOTE: Space panel cutouts at least 1.66 inches (42.2mm) apart.

NOTE: Holes can be cut in the panel using a Greenlee 1/8 DIN Hydraulic Kit #60068 (punch #60069, die #60070).

PROCESS

L1 L2 L3 L4

DEV

% OUT

SERIES 988

2.18"

(55 mm)

DISPLAY

AUTO

MAN

MODE

4.03"

(102mm)

PROCESS

L1 L2 L3 L4

4.03"

DSPY

DEV

% OUT

MODE

AUTO

MAN

2.18"

(55 mm)

SERIES 989

Panel Cutout

Maximum Panel

Thickness

0.38" (9.65mm)

3.62" + 0.03 -0.00 (92mm + 0.8)

1.77 + 0.02 -0.00 (45mm + 0.6)

2 3

231024

Panel

0.68"

(17 mm)

13 14

(103 mm)

15 16

4.06"

Mounting Bracket

Adjustable

19 24

2.2 WATLOW Series 988 User’s Manual

Installation and Wiring, Chapter 2

Installation

Installing the Series 988

Installing and mounting requires access to the back of the panel.

1. Make a panel cutout using the panel cutout dimensions from the previous page.

2. To remove the controller chassis from its case, press in firmly on the two tabs on one side or the top of the bezel until they unsnap, then unsnap the two tabs on the opposite side or the bottom. Pull the chassis out of the case by gently rocking it.

3. Slide the case into the panel cutout. Check to see that the gasket is not twisted, and is seated within the case bezel flush with the panel. Slide

NOTE: Removing the controller chassis from its case makes mounting easier.

Figure 2.2 Side and top view.

Side (986 or 988) or Top and Bottom (987 or 989) View

Panel

Adjustable

Mounting Bracket

Top and Bottom (986 or 988) or Side (987 or 989) View

Release Tabs

Bezel

External Gasket

Mounting Slots

Mounting Collar

WATLOW Series 988 User’s Manual 2.3

Installation and Wiring, Chapter 2

the mounting collar over the back of the control.

4. Loosen the mounting bracket screws enough to allow for the mounting collar and panel thickness. Place each mounting bracket into the mounting slots (head of the screw facing the back of the controller). Push each bracket backward then down to secure it to the control case. To guarantee a proper NEMA 4X seal, Series 986 and 988

units (vertical) must have the mounting brackets located on either side of the unit. When installing Series 987 and 989 units (horizontal) the brackets must be on the top and bottom of the unit.

5. Make sure the case is seated properly. Tighten the installation screws firmly against the mounting collar to secure the unit. To ensure a

NEMA 4X seal, there should be no space between the bezel and panel. Overtightening the screws will distort the case and make it diffi-

cult to remove or replace the controller.

6. Make sure the inside gasket is seated properly and not twisted. Insert the controller chassis into its case and press the bezel until all four tabs snap.

7. To release the mounting brackets, loosen the mounting bracket screws and push the brackets forward, then pull it up and out.

CAUTION: Follow the installation procedure exactly 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. Failure to do so could result in damage to equipment.

Installation

2.4 WATLOW Series 988 User’s Manual

Installation and Wiring, Chapter 2

Wiring

Wiring the Series 988

Wiring options depend on the model number and DIP switch settings. Check the terminal designation stickers on either side of the controller and compare your model number to those shown here and with the model number breakdown on the inside back cover of this manual.

Input-to-output Isolation

The Series 988 uses optical isolation between the analog inputs and the controller outputs/digital input. This isolation provides a 500VÅ (ac) barrier to prevent ground loops when using grounded sensors and/or peripheral equipment.

Here is a breakdown of the isolation barriers:

• Analog inputs 1 and 2 are grouped together.

• Outputs 1 through 4 and the standard event input are grouped together. This does not apply to Output 4 when configured as communications.

• The digital communications output (4) is separate from the above groups.

Power Wiring

100 to 240V‡‡(ac/dc) nominal, (85 to 264 actual)

Vertical Package 98 8 _ - _ _ _ _ - _ _ _ _ Horizontal Package 98 9 _ - _ _ _ _ - _ _ _ _

24 to 28 V‡‡(ac/dc) nominal, (20 to 30 actual) Vertical Package 98 6 _ - _ _ _ _ - _ _ _ _

Horizontal Package 98 7 _ - _ _ _ _ - _ _ _ _

∫

WARNING: To avoid potential electric shock, use National Electric Code (NEC) safety practices when wiring and connecting this unit to a power source and to electrical sensors or peripheral devices. Failure to do so could result in injury or death.

NOTE: Input-to-output isolation is defeated when the external signal conditioner power supply is used to power a transmitter connected to input 1 or input 2.

Figure 2.4 Power wiring.

fuse

L2L1

earth ground

WATLOW Series 988 User’s Manual 2.5

Installation and Wiring, Chapter 2

Wiring

Sensor Installation Guidelines

Maintain isolation between input 1 and input 2 to prevent a ground loop. A ground loop may cause incorrect readings, dashes across the upper display or the display of error codes.

Thermocouple input: Extension wire for thermocouples must be of the same alloy as the thermocouple itself to limit errors.

Using grounded thermocouples for both input 1 and input 2 may create ground loop problems. To correct this problem, replace at least one of the grounded thermocouples with an ungrounded thermocouple. If the application requires grounded thermocouples, use an isolated transmitter, such as a Watlow Gordon 5702 isolated transmitter.

RTD (100 Ω) input: Each 1Ω of lead wire resistance can cause a +2°C error when using a two-wire RTD. A three-wire RTD sensor overcomes this problem. All three wires must have the same electrical resistance (i.e., same gauge, same length, multi-stranded or solid, same metal).

Process input: Isolation must be maintained between input 1 and input

2. If both input 1 and input 2 are used as process inputs, a separate

power supply and transmitter must be used for each input. Output option T (external signal conditioner power supply) can be used to supply power for only one input.

CAUTION: The Series 988 will not function with two grounded thermocouple inputs. Avoid using a grounded thermocouple for both input 1 and input 2. Failure to follow this guideline could result in damage to equipment.

NOTE: Input-to-output isolation is defeated when the external signal conditioner power supply is used to power a transmitter connected to input 1 or input 2.

2.6 WATLOW Series 988 User’s Manual

Installation and Wiring, Chapter 2

Wiring Example

Figure 2.6 System wiring example.

∫

WARNING: Install high or low temperature limit control protection in systems where an over temperature fault condition could present a fire hazard or other hazard. Failure to install temperature limit control protection where a potential hazard exists could result in damage to equipment, property and injury to personnel.

WARNING: To avoid damage to property and equipment, and/or injury of loss of life, use National Electric Code (NEC) standard wiring practices to install and operate the Series

988. Failure to do so could result in such damage, and/or injury or death.

120VÅ (ac)

earth ground

(+)

(-)

red

120VÅ (ac)

2 3

6 7 8

11 12

high-limit

mechanical

fuse

2221

(+)

(-)

988A-10CA-AARR

rear view

1 2

process sensor limit sensor

(+)

(-)

1 CR-1

coil

contactor

SSR-240-10A-DC1

out

1 2 4 3

21 22

9 10

12 13

(+)

(-)

dc input

SSR

heater

Series 988

988A-10CA-AARR

temperature control

12 13

6 7

3-32VÎ (dc)

(+)

out

24-240VÅ (ac)

1 2 13 14

92A3-1DJ1-0000

SSR-240-10A-DC1 solid-state relay, dc input

(-)

high-temperature light

limit control

heater

Series 92

92A3-1DJ1-0000

limit control

1 5

13 14

10+11

1CR

normally open

momentary switch

high-temperature

light

optional

WATLOW Series 988 User’s Manual 2.7

Installation and Wiring, Chapter 2

Wiring Notes

WARNING: To avoid damage to property and equipment, and/or injury of loss of life, use National Electric Code (NEC) standard wiring practices to install and operate the Series

988. Failure to do so could result in such damage, and/or injury or death.

Figure 2.7 Wiring notes.

NOTE: Sketch in your application on this page or a copy of it. See wiring examples in this chapter and in the Appendix.

L1 L2

earth ground

21 22

power

2.8 WATLOW Series 988 User’s Manual

Installation and Wiring, Chapter 2

Input 1 Wiring

Figure 2.8c — 0-5V

ÎÎ

, 1-5VÎÎor 0-10VÎÎ(dc) Process

Universal signal conditioner

98 _ _ - 2 _ _ _ - _ _ _ _ Input impedance: 10KΩ

Figure 2.8a — Thermocouple or 0-50mV (high impedance)

Thermocouple only

98 _ _ - 1 _ _ _ - _ _ _ _ (no DIP switches)

Universal signal conditioner

98 _ _ - 2 _ _ _ - _ _ _ _ Input impedance: 20MΩ

Figure 2.8b — RTD (2- or 3-wire) (100 Ω)

Universal signal conditioner

98 _ _ - 2 _ _ _ - _ _ _ _

0-50mV

Figure 2.8d — 0-20mA or 4-20mA Process

Universal signal conditioner

98 _ _ - 2 _ _ _ - _ _ _ _ Input impedance: 7Ω

DIP Switch

Setting

R, S, B

DIP Settings

J, K, T, N, C, E, D, Pt2,

0-50mV DIP Settings

DIP Switch

Setting

DIP Switch

Setting

NOTE: Successful installation requires five steps:

• Model number and software choice (Appendix);

• DIP switch settings (Chapter 1);

• Sensor match (Chapter 2 and

Appendix);

• Sensor installation (Chapter 2); and

• Wiring (Chapter 2).

Jumper #9 to #10 for 2-wire

RTD

1 2 3

O N

↑

1 2 3

O N

↑

1 2 3

O N

↑

8 9

1 2 3

O N

↑

1 2 3

O N

↑

9-+

Figure 2.9d — 0-20mA or 4-20mA Process

Universal signal conditioner

98 _ _ - _ 2 _ _ - _ _ _ _

Input impedance: 7Ω

Figure 2.9c — 0-5V

ÎÎ

, 1-5VÎÎor 0-10VÎÎ(dc) Process

Universal signal conditioner

98 _ _ - _ 2 _ _ - _ _ _ _

Input impedance: 10KΩ

Figure 2.9b — RTD (2- or 3-wire) (100 Ω)

Universal signal conditioner

98 _ _ - _ 2 _ _ - _ _ _ _

WATLOW Series 988 User’s Manual 2.9

Installation and Wiring, Chapter 2

Input 2 Wiring

Figure 2.9a — Thermocouple or 0-50mV (high impedance)

Thermocouple only

98 _ _ - _ 1 _ _ - _ _ _ _ (no DIP switches)

Universal signal conditioner

98 _ _ - _ 2 _ _ - _ _ _ _ Input impedance: 20MΩ

Jumper

#19 to #20

for 2-wire

RTD

DIP Switch

Setting

R, S, B

DIP Settings

J, K, T, N, C, E, D, Pt2,

0-50mV DIP Settings

DIP Switch

Setting

DIP Switch

Setting

NOTE: Successful installation requires five steps:

• Model number and software choice (Appendix);

• DIP switch settings (Chapter 1);

• Sensor match (Chapter 2 and

Appendix);

• Sensor installation (Chapter 2); and

• Wiring (Chapter 2).

↑

N O

1 2 3

↑

N O

1 2 3

0-50mV

↑

N O

1 2 3

18S2S1 19

↑

N O

1 2 3

↑

N O

1 2 3

19-+ 20

Figure 2.10b — Current Transformer Input

98 _ _ - _ 4 _ _ - _ _ _ _

The current transformer must be purchased separately. See Appendix for Watlow current transformer part numbers.

Systems that use more than 50 Amps need an interstage transformer. For example, if you use a 300A current transformer, part #16-0073, and an interstage transformer, part #160176, the 300A current transformer provides a 5A signal to the interstage transformer. In turn, the transformer sends a 20mA maximum signal to the controller.

2.10 WATLOW Series 988 User’s Manual

Installation and Wiring, Chapter 2

Input 2 Wiring

Figure 2.10c — Digital Event Input 2

98 _ _ - _ 5 _ _ - _ _ _ _

open 0-3VÎ (dc) Event Input 2 off closed 14-36VÎ (dc) Event Input 2 on

Figure 2.10a — Slidewire Feedback or Potentiometer Input

98 _ _ - _ 3 _ _ - _ _ _ _

NOTE: See Chapter 8 for information on slidewire feedback.

NOTE: A process output cannot be installed on output 1 when using a current transformer input.

NOTE: Successful installation requires five steps:

• Model number and software choice (Appendix);

• DIP switch settings (Chapter 1);

• Sensor match (Chapter 2 and

Appendix);

• Sensor installation (Chapter 2); and

• Wiring (Chapter 2).

18 19 20

CCW Wiper CW

Load wire

19 20

Center leg not used

Single-phase

3-phase using 2 current transformers

T3 T2

Phase dot

+5VÎ (VDC)

1KΩ

Internal Circuitry

.01µf

750Ω

100Ω

4.7KΩ

18 19 20

WATLOW Series 988 User’s Manual 2.11

Installation and Wiring, Chapter 2

Figure 2.11a — Digital Event Input 1

Available on all units.

open 14-36VÎ (dc) Event Input 1 off closed 0-3VÎ (dc) Event Input 1 on

NOTE: Successful installation requires five steps:

• Model number and software choice (Appendix);

• DIP switch settings (Chapter 1);

• Sensor match (Chapter 2 and

Appendix);

• Sensor installation (Chapter 2); and

• Wiring (Chapter 2).

Event Input 1 Wiring

+24VÎ (dc)

Internal Circuitry

4.99KΩ

10KΩ

OPTO ISOLATOR

4.99KΩ

.01µf

750Ω

23 24

+ -

2.12 WATLOW Series 988 User’s Manual

Installation and Wiring, Chapter 2

Figure 2.12a — AC Outputs

Solid-state Relay

with

Contact Suppression

98 _ _ - _ _ B _ - _ _ _ _

0.5 amps, minimum off-state impedance: 20KΩ

Electromechanical Relay

with

Contact Suppression

(Suppression between NO and COM contacts only)

98 _ _ - _ _ D _ - _ _ _ _

Form C, 5 amps, minimum off-state impedance: 20KΩ

Electromechanical Relay

without

Contact Suppression

98 _ _ - _ _ E _ - _ _ _ _

Form C, 5 amps off-state impedance: 31MΩ

Solid-state Relay

without

Contact Suppression

98 _ _ - _ _ K _ - _ _ _ _

0.5 amps, off-state impedance: 31MΩ

Output 1 Wiring

Figure 2.12b — Switched DC, Open Collector

98 _ _ - _ _ C _ - _ _ _ _

Maximum voltage: 42VÎÎ(dc) Maximum current: 1A

Figure 2.12d — 0-5V

ÎÎ

, 1-5VÎÎand 0-10VÎÎ(dc) Process

98 _ _ - _ _ F _ - _ _ _ _

Minimum load impedance: 1KΩ

Figure 2.12c — 0-20mA and 4-20mA Process

98 _ _ - _ _ F _ - _ _ _ _

Maximum load impedance: 800Ω

NOTE: Successful installation requires five steps:

• Model number and software choice (Appendix);

• DIP switch settings (Chapter 1);

• Sensor match (Chapter 2 and

Appendix);

• Sensor installation (Chapter 2); and

• Wiring (Chapter 2).

NOTE: Switching inductive loads (relay coils, solenoids, etc.) with the mechanical relay 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 Paktron. Watlow Part No. 0804-0147-

0000.

19 to 32VÎ (dc)

790Ω

Internal Circuitry

12 13 14

External

Load

12 13

COM

(#14 for D & E outputs only)

Fuse

External

13 14

COM

Load

WATLOW Series 988 User’s Manual 2.13

Installation and Wiring, Chapter 2

Output 2 Wiring

Figure 2.13b — Switched DC, Open Collector

98 _ _ - _ _ _ C - _ _ _ _

Maximum voltage: 42VÎÎ(dc) Maximum current: 1A

Figure 2.13d — 0-5V

ÎÎ

, 1-5VÎÎand 0-10VÎÎ(dc) Process

98 _ _ - _ _ _ F - _ _ _ _

Minimum load impedance: 1KΩ

Figure 2.13c — 0-20mA and 4-20mA Process

98 _ _ - _ _ _ F - _ _ _ _

Maximum load impedance: 800Ω

Figure 2.13e — External Signal Conditioner Power Supply

98 _ _ - _ _ _ T - _ _ _ _

Figure 2.13a — AC Outputs

Solid-state Relay

with

Contact Suppression

98 _ _ - _ _ _ B - _ _ _ _

0.5 amps, minimum off-state impedance: 20KΩ

Electromechanical Relay

with

Contact Suppression

(Suppression between NO and COM contacts only)

98 _ _ - _ _ _ D - _ _ _ _

Form C, 5 amps, minimum off-state impedance: 20KΩ

Electromechanical Relay

without

Contact Suppression

98 _ _ - _ _ _ E - _ _ _ _

Form C, 5 amps off-state impedance: 31MΩ

Solid-state Relay

without

Contact Suppression

98 _ _ - _ _ _ K - _ _ _ _

0.5 amps, off-state impedance: 31MΩ

NOTE: Successful installation requires five steps:

• Model number and software choice (Appendix);

• DIP switch settings (Chapter 1);

• Sensor match (Chapter 2 and

Appendix);

• Sensor installation (Chapter 2); and

• Wiring (Chapter 2).

NOTE: Input-to-output isolation is defeated when the external signal conditioner power supply is used to power a transmitter connected to input 1 or input 2.

0000.

Loop powered

External

Load

COM

(#17 for D & E outputs only)

Fuse

L2 L1

19 to 32VÎ (dc) +

790Ω

Internal Circuitry

15 16 17

External

16 17

Load

COM

16 17

Transmitter

4-20mA out

-V

Input

1 or 2

Figure 2.14c — Process Retransmit

0-20mA, 4-20mA, Load impedance: 600Ω max.

98 _ _ - _ _ _ _ - M _ _ _

0-5VÎÎ, 1-5VÎÎ, 0-10VÎÎ(VDC), Load impedance: 500Ω min.

98 _ _ - _ _ _ _ - N _ _ _

2.14 WATLOW Series 988 User’s Manual

Installation and Wiring, Chapter 2

NOTE: Input-to-output isolation is defeated when the external signal conditioner power supply is used to power a transmitter connected to input 1 or input 2.

NOTE: Successful installation requires five steps:

• Model number and software choice (Appendix);

• DIP switch settings (Chapter 1);

• Sensor match (Chapter 2 and

Appendix);

• Sensor installation (Chapter 2); and

• Wiring (Chapter 2).

Figure 2.14d — External Signal Conditioner Power Supply

98 _ _ - _ _ _ _ - T _ _ _

Figure 2.14a — AC Outputs

Solid-state Relay

with

Contact Suppression

98 _ _ - _ _ _ _ - B _ _ _

0.5 amps, minimum off-state impedance: 20KΩ

Electromechanical Relay

without

Contact Suppression

98 _ _ - _ _ _ _ - J _ _ _ _

Form A or B, 5 amps, off-state impedance: 31MΩ

Solid-state Relay

without

Contact Suppression

98 _ _ - _ _ _ _ - K _ _ _ _

0.5 amps, off-state impedance: 31MΩ

Figure 2.14b — Switched DC

98 _ _ - _ _ _ _ - C _ _ _

Minimum load resistance: 500Ω

Form A

Form A or B alarm jumper settings (98______-J___ only)

NOTE: See Chapter 1 for power supply DIP switch information.

Output 3 Wiring

0000.

Loop powered

Form B

L2 L1

External

Load

COM

Fuse

NC Form B

NO Form A

1 2

19 to 32VÎ (dc)

790Ω

Internal Circuitry

Load

External

Transmitter

4-20mA out

-V

Input

1 or 2

WATLOW Series 988 User’s Manual 2.15

Installation and Wiring, Chapter 2

Figure 2.15b — Switched DC, Open Collector

98 _ _ - _ _ _ _ - _ C _ _

Maximum voltage: 42VÎÎ(dc) Maximum current: 1A

Figure 2.15a — AC Outputs

Solid-state Relay

with

Contact Suppression

98 _ _ - _ _ _ _ - _ B _ _

0.5 amps, minimum off-state impedance: 20KΩ

Electromechanical Relay

with

Contact Suppression

(Suppression between NO and COM contacts only)

98 _ _ - _ _ _ _ - _ D _ _ _

Form C, 5 amps, minimum off-state impedance: 20KΩ

Electromechanical Relay

without

Contact Suppression

98 _ _ - _ _ _ _ - _ E _ _ _

Form C, 5 amps, off-state impedance: 31MΩ

Solid-state Relay

without

Contact Suppression

98 _ _ - _ _ _ _ - _ K _ _ _

0.5 amps, off-state impedance: 31MΩ

Output 4 Wiring

Figure 2.15c — External Signal Conditioner Power Supply

98 _ _ - _ _ _ _ - _ T _ _

For data communications wiring refer to

Data Communications

with the Watlow Series 988 Family of Controllers.

NOTE: Input-to-output isolation is defeated when the external transmitter power supply is used to power a signal conditioner connected to input 1 or input 2.

NOTE: See Chapter 1 for power supply DIP switch information.

NOTE: Successful installation requires five steps:

• Model number and software choice (Appendix);

• DIP switch settings (Chapter 1);

• Sensor match (Chapter 2 and

Appendix);

• Sensor installation (Chapter 2); and

• Wiring (Chapter 2).

0000.

Loop powered

External

Load

L2 L1

Fuse

(#7 for D & E outputs only)

COM

5 6

19 to 32VÎ (dc)

790Ω

6 7

Internal Circuitry

External

Load

COM

6 7

Transmitter

4-20mA out

-V

Input 1 or 2

WATLOW Series 988 User’s Manual 3.1

Front Panel and Display Loop, Chapter 3

Chapter 3 Front Panel and Display Loop

Upper Display

Indicates the actual process value, prompt parameter value or error code.

DEV LED

When lit, the lower display shows the most recent deviation unit from the set point.

% OUT LED

When lit, the lower display shows the current percent output.

Up-arrow Key

Increases the value or changes the parameter in the upper display (except for set point changes in the Display Loop, which occur in the lower display). Hold the key down to increase the value rapidly. New data takes effect in five seconds or when the Mode key or Display key is pressed.

Up + Down Keys

Press simultaneously for three seconds to go to the Setup Menu. Continue to press both keys for another three seconds to go to the Factory Menu. Access to the Setup and Factory menus can be disabled with lockout DIP switch.

Lower Display

Indicates the set point, deviation, percent power, temperature unit, menu prompt name or alarm code.

L1, L2, L3, L4

These LED’s indicate when output 1, 2, 3 or 4 are active. Outputs can be configured as: Ot1 Control Ot2 Control or Alarm Ot3 Alarm or Retransmit Ot4 Alarm or Communications

(flashes on transmit and

receive)

Display Key

Pressing this key enters the Display Loop. Press the Display key at any time to return to this loop. The next page has more information on the Display Loop.

Auto/Man Key

In Manual mode the lower display shows percent output. Pressed once, it clears any latched alarm. If pressed again within five seconds it will toggle between Auto and Manual mode.

Auto/Man LED

Lit when the control is in Manual operation. Press the Auto/Man key twice to enter Automatic operation. When blinking, press the Auto/Man key to toggle between Auto and Manual. After five seconds without pressing the Auto/Man key, the LED stops blinking and returns to its previous state.

Mode Key

Enters new data and steps to the next prompt in the current menu.

Mode + Up-arrow Keys

Hold the Mode key then press the Up-arrow key to move backwards through the current menu. Scrolling stops when you reach the top of the menu.

Figure 3.1 Series 988 Keys and Displays

Down-arrow Key

Decreases the value or changes the parameter in the upper display (except for set point changes in the Display Loop, which occur in the lower display). Hold the key down to decrease the value rapidly. New data takes effect in five seconds or when the Mode key or Display key is pressed.

Keys and Displays

PROCESS

L1 L2 L3 L4

DEV

% OUT

DISPLAY

AUTO

MAN

MODE

SERIES 988

3.2 WATLOW Series 988 User’s Manual

Front Panel and Display Loop, Chapter 3

Display Loop

The Display Loop is the “home” state of the Series 988 controller. Pressing the Display key ∂ returns the controller to the Display Loop from any prompt in any menu. The controller automatically returns to the Display Loop from any menu when a minute passes without any keys being pressed.

Figure 3.2 The Display Loop

NOTE: If [``no] is selected for [`In2], in the Input Menu, the [Pr`2] prompt will not appear.

NOTE: For information on input 1 [`In1] and input 2 [`In2] ranges, refer to

Chapter

DISPLAY

[`988]

[`988]

[`988]

[Pr`2]

[`988]

[`988]

[`988]

[`100]

[`988]

[``°C]

current input 1 reading set point 1 (change with Up-arrow > or Down-arrow < key)

current input 2 reading input 2 process (appears only if controller equipped with input 2 hardware)

current input 1 reading deviation from set point, process 1 minus set point 1 (DEV light on)

current input 1 reading percent output (%OUT light on)

current input 1 reading units selected (units, °F or °C)

WATLOW Series 988 User’s Manual 4.1

Setup Menus, Chapter 4

Navigating the Setup Menus

To reach the Setup Menus, begin in the Display Loop and press both the Uparrow > and Down-arrow < keys for three seconds. The Setup Menu prompt [`SEt] will appear in the lower display, and the Input Menu prompt

[InPt] will appear in the upper display. The four Setup Menus are: Input [InPt]; Output [OtPt]; Global [GLbL]; and Communications [COM]. Use the

Up-arrow > or Down-arrow < key to select a menu and the Mode key µ to step through a menu. The Communications Menu appears only on units equipped with the data communications option.

You will not see every prompt in any of these menus. The unit’s configuration and model number determine which prompts appear. After stepping through each menu, the Series 988 returns to the Setup Menu prompt [`SEt]. Use the Up-arrow > and Down-arrow < keys to select the next menu, or use the Mode key µ to advance through the same menu again. To move backwards through the menu hold the Mode key µ down and press the Uparrow key >. Use the Up-arrow > or Down-arrow < key to change the prompt setting.

Refer to the Appendix for model number options. For information about communications and the communications prompts, refer to the supplemental manual Data Communications with the Watlow Series 988 Family of

Controllers.

Chapter 4 The Setup Menus

Figure 4.1 Navigating the Setup Menus.

❶ Begin in the Display Loop, and press the Up-arrow

> and Down-arrow < keys simultaneously to reach the Setup Menus.

❷ Press the Up-arrow key > to select one of the Setup Menus.

NOTE: The lockout DIP switch hides the Setup Menus. See Chapter 1.

NOTE: Press the Display key ∂ to return to the Display Loop from any point in any menu.

NOTE: When navigating through menus, outputs will be disabled.

p. 4.2 p. 4.18 p. 4.34 p. 4.44

PROCESS

L1 L2 L3 L4

DEV

% OUT

SERIES 988

PROCESS

L1 L2 L3 L4

DEV

% OUT

SERIES 988

DISPLAY

AUTO

MAN

MODE

[Inpt]

[`Set]

Input

p. 4.2

[OtPt] [gLbL] [COm]

[`Set] [`Set]

Output

p. 4.18

Global

p. 4.34

[`Set]

Communications Menu p. 4.44

DISPLAY

AUTO

MAN

MODE

4.2 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Figure 4.2 The Input Menu.

Setup-Input

❸ Select the Input Menu, then press the Mode key µ to step through the

prompts.

❹ Press the Up-arrow key > or the Down-arrow key < to select one of

the prompt values.

*Prompts may not appear, depending on controller configuration.

Reaching the Input Menu

(p. 4.3

)

(p. 4.9

)

(p. 4.16

)

TLTL

PROCESS

L1 L2 L3 L4

DEV

DISPLAY

% OUT

AUTO

MAN

MODE

SERIES 988

… …

[```0] [```1] [```2] [``60]

[Ftr1] [Ftr1] [Ftr1] [Ftr1]

[``no]

[Lin1]

[root]

[Lin1]

…

MODE



[Inpt]

[`Set]

[`In1]

[deC1]

[`rL1]

[`rH1]

[CAL1]

[rtd1]

[Ftr1]

[Lin1]

[`ln2]

[`rSp]

[deC2]

[`RL2]

[`RH2]

[LrnL]

[LrnH]



[CAL2]

[rtd2]

[Ftr2]

[Lin2]

[Hunt]

[SHYS]

Setup Prompt

Input 1

*Decimal 1

Range Low 1

Range High 1

Calibration Offset 1

*RTD Calibration Curve 1

Software Filter 1

*Linearization 1

*Input 2

*Remote Set Point

*Decimal 2

*Range Low 2

*Range High 2

*Learn Low

*Learn High

*Calibration Offset 2

*RTD Calibration Curve 2

*Software Filter 2

*Linearization 2

*Hunt

*Slidewire Hysteresis

Enter your settings, from the controller's upper display.

Input 1 (p. 4.3)

Input 2 (p. 4.9)

Slidewire (p. 4.16)

Input Prompts

When you are in the Setup menus, the Series 988 displays the menu selection ( [InPt], [OtPt], [GLbL] or [COM] ) in the upper display, and [`SEt] in the lower display.

The Up-arrow > or Down-arrow key < selects another menu. Press the Mode key µ to display the prompt in the lower display and its value in the upper display. Use the Up-arrow > or Down-arrow < key to change the value in the upper display. The new value will not take effect until after a five-second delay or until you press the Mode key µ.

Input 1

Select sensor type for input 1. This selection must match the sensor type connected to terminals 8, 9 and 10. See Appendix for more information about sensors.

• Changing the value of [`In1] changes all other prompts to the factory default values, except the Communications and Lockout menus, the [`C_F] prompt in the Global Menu and the [`dFL] prompt in the Calibration Menu. If you change the value, the default warning [dFLt] will flash in the upper display.

• Changes do not take effect automatically after five seconds; you must press the Mode key µ to enter the sensor type change and advance to the next prompt.

[`In1] This prompt always appears.

If Default

↓ ↓

98_ _-1_ _ _-_ _ _ _

no DIP J K T N E W5 W3 Pt2 0-50mV

[```J] [```H] [```t] [```n] [```E] [```C] [```d] [`Pt2] [0-50]

thermocouple [`In1] [`In1] [`In1] [`In1] [`In1] [`In1] [`In1] [`In1] [`In1]

only

98_ _-2_ _ _-_ _ _ _

Input 1 DIP J K T N E W5 W3 Pt2 0-50mV

[```J] [```H] [```t] [```n] [```E] [```C] [```d] [`Pt2] [0-50]

[`In1] [`In1] [`In1] [`In1] [`In1] [`In1] [`In1] [`In1] [`In1]

thermocouple

Input 1 DIP

R S B

[```r] [```S] [```b]

[`In1] [`In1] [`In1]

thermocouple

O N

↑

1 2 3

O N

↑

1 2 3

WATLOW Series 988 User’s Manual 4.3

Setup Menus, Chapter 4

Setup-Input

NOTE: Decimal points may not always be in the position specified below depending on the the settings in the Decimal 1 [dEC1] and Decimal 2 [dEC2] parame- ters in the Input Menu.

CAUTION: Changing the value of [`In1] changes most other prompts to the factory default values. Document all settings before changing sensor type. Verify the correct sensor type before making a change. Failure to follow this guideline could result in damage to equipment or property. Document all settings before changing sensor type.

[`In1]

Input 1 continued on next page.

[`In1]

4.4 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

[`In1]

Input 1 continued from previous page.

Setup-Input

If Default

↓ ↓

Input 1 DIP RTD RTD(0.1°)

[`rtd] [`r†d]

[`In1] [`In1]

RTD

Input 1 DIP 4-20mA 0-20mA 0-5VÎ 1-5VÎ 0-10VÎ (dc)

[4-20] [0-20] [`0-5] [`1-5] [0-10]

[`In1] [`In1] [`In1] [`In1] [`In1]

process

Decimal 1

Select the decimal point location for process type input 1 data. This prompt, in conjunction with the Range Low and Range High prompts, allows you to format and limit units of measure for process 1.

• All prompts with units of measure related to input 1 will display in the selected decimal format.

• This affects propbands, alarm set points, process set points, calibration offsets, deadbands and ranges.

[dEC1] This prompt appears only if you have set input 1 [`In1] to a process input or to a thermocouple input set to 0-50mV.

Default

↓

[```)] [``)0] [`)00] [)000]

[dEC1] [DEC1] [dEC1] [dEC1]

O N

↑

1 2 3

O N

↑

1 2 3

[dEC1]

WATLOW Series 988 User’s Manual 4.5

Setup Menus, Chapter 4

Setup-Input

NOTE: These values do not affect the low or the high set point limit for process alarms.

Range Low 1 and Range High 1

Select the low and high limits for input 1. These prompts limit the adjustment range for the set points. The default values are the same as the limits of the sensor you selected by setting the input 1 DIP switch and selecting a value for Input 1 [`In1].

• Process inputs are scaled by these values. Range high is the value displayed when the maximum process signal is present at the input. Range low is the value displayed when the minimum process signal is present at the input.

Example: Set [`In1] to [4-20]mA.

Set [`rL1] to [`100]. Set [`rH1] to [`500]. A 4mA input will display [`100]. A 12mA input will display [`300]. A 20mA input will display [`500].

• The low and high values of each sensor type are listed on the specifications page of the Appendix.

• Choose between Fahrenheit and Celsius at the [`C_F] prompt in the Global Menu.

[`rL1] [`rH1] These prompts always appear.

Default Default Default Default

↓ ↓ ↓ ↓

[``°F] [``°C]

[`rL1] [`rH1] [`rL1] [`rH1]

[```J] [``32]…[1500] [```0]…[`816] 98_ _-1_ _-_ _ _ or

[``in] [`rL1] [`rH1] [`rL1] [`rH1] 98_ _-2_ _-_ _ _

(K)

[```H] [-328]…[2500] [-200]…[1371]

[```t] [-328]…[`750] [-200]…[`399]

[```n] [``32]…[2372] [```0]…[1300]

[```E] [-328]…[1470] [-200]…[`799]

(W5)

[```C] [``32]…[4200] [```0]…[2316]

(W3)

[```d] [``32]…[4200] [```0]…[2316]

[`Pt2] [``32]…[2543] [```0]…[1395]

high impedance

[0-50] [-999]…[`999] [-573]…[`573]

[`rL1] [`rH1]

Range Low 1 and Range High 1 continued on next page.

NOTE: When high impedance [0-50] is selected for input 1 the range high for both [``°C] and [``°F] can be extended to

[9999]. The range

low when [``°C] is selected can be extended to

[-999].

[`rL1]

[`rH1]

4.6 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Input

NOTE: These values do not affect the low or the high set point limit for process alarms.

[`rL1] [`rH1]

Range Low 1 and Range High 1 continued from previous page.

[``°F] [``°C]

[`rL1] [`rH1] [`rL1] [`rH1]

[```r] [``32]…[3200] [```0]…[1760] 98_ _-2_ _-_ _ _

only

[`in1]

[```S] [``32]…[3200] [```0]…[1760]

[```b] [``32]…[3300] [```0]…[1816]

[`rtd] [-328]…[1472] [-200]…[`800]

[`r†d] [-9(9]…[99(9] [-7#3]…[53&7]

[4-20] [-999]…[9999] units

[0-20] [-999]…[9999] units

[`0-5] [-999]…[9999] units

[`1-5] [-999]…[9999] units

[0-10] [-999]…[9999] units

Calibration Offset 1

Offset the input 1 signal by a positive or negative value. This allows you to compensate for lead resistance, sensor errors or other factors.

[CAL1] This prompt always appears.

If Default

↓ ↓

[``°F] [-999] … [```0] … [9999]

[`C_F] [CAL1] [CAL1] [CAL1]

(Global Menu)

[``°F]

[`r†d] [-9(9] … [``)0] … [`9(9]

[`C_F] [`In1] [CAL1] [CAL1] [CAL1]

(Global Menu) (Input Menu)

[``°C] [-999] … [```0] … [9999]

[`C_F] [CAL1] [CAL1] [CAL1]

(Global Menu)

[``°C]

[`r†d] [-5%5] … [``)0] … [`5%5]

[`C_F] [`In1] [CAL1] [CAL1] [CAL1]

(Global Menu) (Input Menu)

[-999] … [```0] … [`999]

units

a process input

[CAL1] [CAL1] [CAL1]

is selected

[CAL1]

WATLOW Series 988 User’s Manual 4.7

Setup Menus, Chapter 4

Setup-Input

RTD (100Ω) Calibration Curve 1

Select the calibration curve for the RTD 1 input. The RTD input uses either the European (DIN, 0.003850Ω/Ω/°C) or the Japanese (JIS,

0.003916Ω/Ω/°C) linearization standard.

[rtd1] This prompt appears only if you have set [`In1] to [`rtd] or [`r†d].

Default

↓

[`din] … [`JIS]

[rtd1] [rtd1]

Software Filter 1

Select the filter time constant, in seconds, for input 1. This smooths a rapidly changing input signal for display or control purposes.

• Select a positive value to filter only the display.

• Select a negative value to filter the input signal.

• Set the value to [```0] to disable the filter.

[Ftr1] This prompt always appears.

Default

↓

[`-60] … [```0] … [``60]

[Ftr1] [Ftr1] [Ftr1]

[rtd1]

[Ftr1]

4.8 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Input

Linearization 1

Select square root linearization for input 1.

[Lin1] This prompt appears only if you have set [`In1] to a process input or to a thermocouple set to [0-50]mV.

Default

↓

[``no] [root]

[Lin1] [Lin1]

NOTE: See Chapter 8 for more information on input linearization.

[Lin1]

WATLOW Series 988 User’s Manual 4.9

Setup Menus, Chapter 4

Setup-Input

NOTE: If [``no] is selected for [`In2] none of the other input 2 prompts will appear.

Input 2

Select sensor type for input 2. This selection must match the sensor type connected to terminals 18, 19 and 20. See Appendix for more information about sensors.

• Changing the value of [`In2] changes all other prompts to the factory default values, except the Communications and Lockout menus, the [`C_F] prompt in the Global Menu and the [`dFL] prompt in the Calibration Menu. If you change the value, the default warning [dFLt] will flash in the upper display.

• Changes do not take effect automatically after five seconds; you must press the Mode key µ to enter the sensor type change and advance to the next prompt.

[`In2] This prompt and other Input 2 prompts appear only on controllers equipped with input 2 hardware (not 98_ _-_0_ _-_ _ _ _).

[`In2]

Input 2 continued on next page.

[`In2]

If Default

↓ ↓

98_ _-1_ _ _-_ _ _ _

no DIP J K T N E W5 W3 Pt2 0-50mV

[``no] [```J] [```H] [```t] [```n] [```E] [```C] [```d] [`Pt2] [0-50]

thermocouple [``In2] [`In2] [`In2] [`In2] [`In2] [`In2] [`In2] [`In2] [`In2] [`In2]

only

98_ _-2_ _ _-_ _ _ _

Input 2 DIP J K T N E W5 W3 Pt2 0-50mV

[``no] [```J] [```H] [```t] [```n] [```E] [```C] [```d] [`Pt2] [0-50]

[`In2] [`In2] [`In2] [`In2] [`In2] [`In2] [`In2] [`In2] [`In2] [`In2]

thermocouple

Input 2 DIP

R S B

[``no] [```r] [```S] [```b]

[`In2] [`In2] [`In2] [`In2]

thermocouple

Input 2 DIP RTD RTD (0.1°)

[``no] [`rtd] [`r†d]

[`In2] [`In2] [`In2]

RTD

Input 2 DIP 4-20mA 0-20mA 0-5VÎ 1-5VÎ 0-10VÎ (dc)

[``no] [4-20] [0-20] [`0-5] [`1-5] [0-10]

[`In2] [`In2] [`In2] [`In2] [`In2] [`In2]

process

O N

↑

1 2 3

O N

↑

1 2 3

O N

↑

1 2 3

O N

↑

1 2 3



CAUTION: Changing the value of [`In2] changes most other prompts to the factory default values. Document all settings before changing sensor type. Verify the correct sensor type before making a change. Failure to follow this guideline could result in damage to equipment or property. Document all settings before changing sensor type.

4.10 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Input

[`In2]

Input 2 continued from previous page.

If Default

↓ ↓

98_ _-3_ _ _-_ _ _ _

no DIP slidewire potentiometer

[``no] [SLid] [`POt]

resistance [``In2] [`In2] [`In2]

only

98_ _-4_ _ _-_ _ _ _

no DIP current

current

[``no] [SLid]

transformer [``In2] [`In2]

only

98_ _-5_ _ _-_ _ _ _

no DIP event 2

[``no] [`Ei2]

digital event [``In2] [`In2]

only

Remote Set Point

Enable a remote set point signal.

[`rSP] This prompt appears only if the controller is equipped with input 2 hardware and if [`In2] is not set to [``no] and if [CntL] (in the Global Menu) is set to [`nor].

Default

↓

[`OFF] [``On]

[`rSP] [`rSP]

[`rSP]

WATLOW Series 988 User’s Manual 4.11

Setup Menus, Chapter 4

Setup-Input

Decimal 2

Select the decimal point location for process type input 2 data. This prompt, in conjunction with the Range Low and Range High prompts, allows you to format and limit units of measure for process 2.

• All prompts with units of measure related to input 2 will display in the selected decimal format.

• This affects propbands, alarm set points, process set points, calibration offsets, deadbands and ranges.

[dEC2] This prompt appears only if you have set input 2 [`In2] to a process input, [Curr] or a thermocouple input set to [0-50] mV.

Default

↓

[```)] [``)0] [`)00} [)000]

[dEC2] [dEC2] [dEC2] [dEC2]

Range Low 2 and Range High 2

Select the low and high limits for input 2. These prompts limit the adjustment range for the set points. The default values are the same as the limits of the sensor you selected by setting the input 2 DIP switch and selecting a value for Input 2 [`In2].

Example: Set [`In2] to [4-20]mA.

Set [`rL2] to [`100]. Set [`rH2] to [`500]. A 4mA input will display [`100]. A 12mA input will display [`300]. A 20mA input will display [`500].

• The low and high values of each sensor type are listed on the specifications page of the Appendix.

• Choose between Fahrenheit and Celsius at the [`C_F] prompt in the Global Menu.

[`rL2] [`rH2] These prompts appear only if the controller is equipped with input 2 hardware and with Input 2 [`In2] not set to [``no] or

[`Ei2].

[`rL2] [`rH2]

Range Low 2 and Range High 2 continued on next page.

[dEC2]

[`rL2]

[`rH2]

4.12 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Input

Default Default Default Default

↓ ↓ ↓ ↓

[``°F] [``°C]

[`rL2] [`rH2] [`rL2] [`rH2]

[```J] [``32]…[1500] [```0]…[`816] 98_ _-1_ _-_ _ _ or

[`in2] [`rL2] [`rH2] [`rL2] [`rH2] 98_ _-2_ _-_ _ _

(K)

[```H] [-328]…[2500] [-200]…[1371]

[```t] [-328]…[`750] [-200]…[`399]

[```n] [``32]…[2372] [```0]…[1300]

[```E] [-328]…[1470] [-200]…[`799]

(W5)

[```C] [``32]…[4200] [```0]…[2316]

(W3)

[```d] [``32]…[4200] [```0]…[2316]

[`Pt2] [``32]…[2543] [```0]…[1395]

high impedance

[0-50] [-999]…[`999] [-573]…[`573]

[```r] [``32]…[3200] [```0]…[1760] 98_ _-2_ _-_ _ _ only

[```S] [``32]…[3200] [```0]…[1760]

[```b] [``32]…[3300] [```0]…[1816]

[`rtd] [-328]…[1472] [-200]…[`800]

[`r†d] [-9(9]…[99(9] [-7#3]…[53&7]

[4-20] [-999]…[9999] units

[0-20] [-999]…[9999] units

[`0-5] [-999]…[9999] units

[`1-5] [-999]…[9999] units

[0-10] [-999]…[9999] units

[0-50] [-999]…[9999] units

[0=00] [-999]…[9999] units

slidewire

[SLid] [`100]…[1200] ohms

current

[Curr] [```0]…[``50] amps

potentiometer

[`POt] [```0]…[1200] ohms

NOTE: These values do not affect the low or the high set point limit for process alarms.

[`rL2] [`rH2]

Range Low 2 and Range High 2 continued from previous page.

NOTE: When high impedance [0-50] is selected for input 1 the range high for both [``°C] and [``°F] can be extended to

[9999].

The range low when [``°C] is selected can be extended to

[-999].

WATLOW Series 988 User’s Manual 4.13

Setup Menus, Chapter 4

Setup-Input

NOTE: See Chapter 8 for more information on slidewire feedback.

Learn Low

Write the low-end resistance of the slidewire potentiometer to the range low 2 parameter.

[LrnL] This prompt appears only on controllers equipped with input 2 hardware and with Input 2 [`In2] set to [SLid] or [`POt].

Default

↓

[``no] [`YES]

[LrnL] [LrnL]

Learn High

Write the high-end resistance of the slidewire potentiometer to the range low 2 parameter.

[LrnH] This prompt appears only on controllers equipped with input 2 hardware and with Input 2 [`In2] set to [SLid] or [`POt].

Default

↓

[``no] [`YES]

[LrnH] [LrnH]

[LrnL]

[LrnH]

NOTE: See Chapter 8 for more information on slidewire feedback.

4.14 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Input

[CAL2]

[rtd2]

Calibration Offset 2

Offset the input 2 signal by a positive or negative value. This allows you to compensate for lead resistance, sensor errors or other factors.

[CAL2] This prompt appears only if the controller is equipped with input 2 hardware and if [`In2] is not set to [``no] or [`Ei2].

If Minimum Default Max. setting/range

↓ ↓

[``°F] [-999] … [```0] … [`999]

[`C_F] [CAL2] [CAL2] [CAL2]

(Global Menu)

[``°F]

[`r†d] [-9(9] … [``)0] … [`9(9]

[`C_F] [`In2] [CAL2] [CAL2] [CAL2]

(Global Menu) (Input Menu)

[``°C] [-555] … [```0] … [`555]

[`C_F] [CAL2] [CAL2] [CAL2]

(Global Menu)

[``°C]

[`r†d] [-5%5] … [``)0] … [`5%5]

[`C_F] [`In2] [CAL2] [CAL2] [CAL2]

(Global Menu) (Input Menu)

[-999] … [```0] … [`999]

units

a process input

[CAL2] [CAL2] [CAL2]

is selected

RTD Calibration Curve 2

Select the calibration curve for the RTD 2 input. The RTD input uses either the European (DIN, 0.003850Ω/Ω/°C) or Japanese (JIS,

0.003916Ω/Ω/°C) linearization standard.

[rtd2] This prompt appears only on controllers equipped with input 2 hardware and with [`In2] set to [`rtd] or [`r†d].

Default

↓

[`din] [`JIS]

[rtd2] [rtd2]

Software Filter 2

Select the filter time constant, in seconds, for input 2. This smooths a rapidly changing input signal for display or control purposes.

• Select a positive value to filter only the display.

• Select a negative value to filter the input signal.

• Set the value to [```0] to disable the filter.

[Ftr2] This prompt appears only on controllers equipped with input 2 hardware and with [`In2] not set to [``no] or [`Ei2].

Default

↓

[`-60] … [```0] … [``60]

[Ftr2] [Ftr2] [Ftr2]

Linearization 2

Select square root linearization for input 2.

[Lin2] This prompt appears only if you have set Input 2 [`In2] to a process input or to a thermocouple input set to [0-50] mV.

Default

↓

[``no] [root]

[Lin2] [Lin2]

WATLOW Series 988 User’s Manual 4.15

Setup Menus, Chapter 4

Setup-Input

[Ftr2]

[Lin2]

NOTE: See Chapter 8 for more information on input linearization.

4.16 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Input

NOTE: See Chapter 8 for more information on slidewire feedback.

[Hunt]

Hunt

Set the deadband, as a percentage of output, to keep the valve from hunting.

• The slidewire hysteresis [SHYS] setting provides additional control over a valve.

[Hunt] This prompt appears only if the controller is equipped with slidewire hardware (98_ _-_3_ _-_ _ _) and with [`In2] set to [SLid].

Default

↓

[``)3] … [``!0] … [10)0]

[Hunt] [Hunt] [Hunt]

WATLOW Series 988 User’s Manual 4.17

Setup Menus, Chapter 4

Figure 4.17 Hunt and slidewire inner hysteresis.

Setup-Input

NOTE: See Chapter 8 for more information on slidewire feedback.

[SHYS]

Slidewire Hysteresis

Set the inner hysteresis, the point at which the valve output turns off.

• The figure below illustrates the interaction between slidewire hysteresis

[SHYS] and hunt [Hunt].

[SHYS] This prompt appears only if the controller is equipped with slidewire hardware (98_ _-_3_ _-_ _ _ _) and with Input 2 [`In2] set to [SLid]

Default

↓

[```0] [Hunt]

[SHYS] [SHYS]

turn-on point (close)

Hunt

Slidewire Hysteresis

turn-off point (close)

slidewire position set point

turn-off point (open)

turn-on point (open)

4.18 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Output

❸ Press the Mode key µ to step through the prompts.

❹ Press the Up-arrow key > or the Down-arrow key < to select one of

the prompt values.

❶ Begin in the Display Loop, and press the Up-arrow > and Down-

arrow < keys simultaneously for three seconds to reach the Setup Menus.

❷ Press the Up-arrow key > to select one of the Setup Menus.

Reaching the Output Menu

Figure 4.18 Navigating the Output Menu.

*Prompts may not appear, depending on controller configuration.

p. 4.2 p. 4.18 p. 4.34 p. 4.44

(p.

4.19

)

(p.

4.21

)

(p. 4.25

)

(

p. 4.31

)

(

4.28

)

[Inpt]

[`Set]

Input

p. 4.2

[``Ht] [``CL]

[`Ot1] [`Ot1]

[```1]

[OtPt] [gLbL] [COm]

[`Set] [`Set]

Output

p. 4.18



[```2]

[Hys2][Hys2]

Global

p. 4.34

[```3] [`999]

[Hys2] [Hys2]

[`Set]

Communications Menu p. 4.44

… …

…

MODE

[OtPt]

[`set]

[`Ot1]

[Prc1]

[HyS1}

[`Ot2]

[Prc2]

[Hys2]x

[Sp2c]

[`Al2]

[A25d]

[LAt2]

[SIL2]

[`Ot3]

[`Al3]

[A3sd]

[Hys3]

[Lat3]

[SIL3]

[`Ot4]

[`AL4]

[A4Sd}

[HyS4]

[LAt4]

[SIL4}

[Aout]

[Prc3}

[A`rL]

[A`rH]

[ACAL]

Setup Prompt

Output 1

*Process 1

*Hysteresis 1

*Output 2

*Process 2

*Hysteresis 2

*Set Point 2 Control

*Alarm 2

*Alarm 2 Side

*Latching 2

*Silencing 2

*Output 3

*Alarm 3

*Alarm 3 Side

*Hysteresis 3

*Latching 3

*Silencing 3

*Output 4

*Alarm 4

*Alarm 4 Side

*Hysteresis 4

*Latching 4

*Silencing 4

*Analog Output

*Process 3

*Retransmit Low Limit

*Retransmit High Limit

*Retransmit Calibration Offset

Enter your settings, from the controller's upper display.

Output 1 (p. 4.19)

Output 2 (p. 4.21)

Output 3 (p. 4.25)

Output 4 (p. 4.28)

Output 3 retransmit (p. 4.31)

WATLOW Series 988 User’s Manual 4.19

Setup Menus, Chapter 4

Setup-Output

Output Prompts

When you are in the Setup menus, the Series 988 displays the menu selection ( [InPt], [OtPt], [GLbL] or [COM] ) in the upper display, and [`SEt] in the lower display.

The Up-arrow > or Down-arrow key < selects another menu. Press the Mode key µ to display the first prompt in the lower display and its value in the upper display. Use the Up-arrow > and Down-arrow < keys to change the value in the upper display. The new value will not take effect until after a five-second delay or until you press the Mode key µ.

Output 1

Set the way that output 1 will respond to a difference between the set point and an input variable.

• [``Ht] select reverse action, so that output 1 responds when the input signal is less than the setpoint.

• [``CL] select direct action, so that output 1 responds when the input signal is more than the setpoint.

[`Ot1] This prompt always appears.

Default

↓

[``Ht] [``CL]

[`Ot1] [`Ot1]

NOTE: Decimal points may not always be in the position specified below depending on the the settings in the Decimal 1 [deC1] and Decimal 2 [deC2] parame- ters in the Input Menu.

[`Ot1]

4.20 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Output

Process 1

Select the process range for output 1.

[Prc1] This prompt appears only on controllers equipped with output 1 process hardware (98_ _-_ _F_-_ _ _ _).

Default

↓

4-20mA 0-20mA 0-5VÎ 1-5VÎ 0-10VÎ (dc)

[4-20] [0-20] [`0-5] [`1-5] [0-10]

[Prc1] [Prc1] [Prc1] [Prc1] [Prc1]

Hysteresis 1

Select the switching hysteresis for output 1. This determines the change in temperature or process units needed to turn the output from full on to full off.

[HYS1] This prompt does not appear on controllers equipped with output 1 process hardware (98_ _-_ _F_-_ _ _ _). This prompt only appears with the controller set up as an on/off controller ( [PBIA] = [```0] ).

If Default

↓ ↓

[``°F] [```1] … [```3] … [`999]

[`C_F] [HYS1 ][HYS1] [HYS1]

(Global Menu)

[``°F]

[`r†d] [``)1] … [``#0] … [`9(9]

[`C_F] [`In1] [HYS1] [HYS1] [HYS1]

(Global Menu) (Input Menu)

[``°C] [```1] … [```2] … [`555]

[`C_F] [HYS1] [HYS1] [HYS1]

(Global Menu)

[``°C]

[`r†d] [``)1] … [``@0] … [`5%5]

[`C_F] [`In1] [HYS1] [HYS1] [HYS1]

(Global Menu) (Input Menu)

[```1] … [```3] … [`999]

units

process input

[HYS1] [HYS1] [HYS1]

is selected

[HYS1]

[Prc1]

WATLOW Series 988 User’s Manual 4.21

Setup Menus, Chapter 4

Setup-Output

Output 2

Set the way that output 2 will respond to a difference between the set point and an input variable.

• [`AL2] de-energizes output 2 in an alarm condition.

• [AL2n] energizes output 2 in an alarm condition.

• [``Ht] select reverse action, so that output 2 responds when the input signal is less than the set point.

• [``CL] select direct action, so that output 2 responds when the input signal is more than the set point.

[`Ot2] This prompt appears only on controllers equipped with output 2 hardware (not 98_ _-_ _ _A-_ _ _ _). [`AL2] and [AL2n] do not appear if output 2 is a process output (98_ _-_ _ _F-_ _ _ _). [``Ht] and [``CL] do not appear if [AL90] (in the Global Menu) is set to [dUPL].

Default

↓

[``no] [`AL2] [Al2n] [``Ht] [``CL]

[`Ot2] [`Ot2] [`Ot2] [`Ot2] [`Ot2]

Process 2

Select the process range for output 2.

[Prc2] This prompt appears only on controllers equipped with output 2 process hardware (98_ _-_ _ _F-_ _ _ _) and with [`Ot2] not set to [``no].

Default

↓

4-20mA 0-20mA 0-5VÎ 1-5VÎ 0-10VÎ (dc)

[4-20] [0-20] [`0-5] [`1-5] [0-10]

[Prc2] [Prc2] [Prc2] [Prc2] [Prc2]

[`Ot2]

[Prc2]

4.22 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Output

Hysteresis 2

Select the switching hysteresis for output 2. This determines the change in temperature or process units needed to turn the output from off to on.

• If [`AL2] is set to [rAtE] settings for [HYS2] will be in degrees per minute or units per minute.

• If the input referenced by [`AL2] is set to [`r†d] the range is affected as listed below.

[HYS2] This prompt appears only on controllers equipped with output 2 hardware and with the controller set up as an on/off controller ([Pb2A} = [```0]), and with [`Ot2] not set to [``no]. This prompt does not appear on controllers equipped with output 2 process hardware, ([`In2} = [sLid], or if [ALg0} in the Global menu = [dUPL]).

If Default

↓ ↓

[``°F] [```1] … [```3] … [`999]

[`C_F] [HYS2] [HYS2] [HYS2]

(Global Menu)

[``°F]

[`r†d] [``)1] … [``#0] … [`9(9]

[`C_F]

Input 1 or 2

[HYS2] [HYS2] [HYS2]

(Global Menu) (see note above)

[``°C] [```1] … [```2] … [`555]

[`C_F] [HYS2][ HYS2] [HYS2]

(Global Menu)

[``°C]

[`r†d] [``)1] … [``@0] … [`5%5]

[`C_F]

Input 1 or 2

[HYS2] [HYS2] [HYS2]

(Global Menu) (see note above)

[```1] … [```3] … [`999]

units

a process input

[HYS2] [HYS2] [HYS2]

is selected

Set Point 2 Control

Select a second set point.

• [``Pr] enables a set point independent from the Set Point 1 [`SP1] value.

• [``dE] enables a set point at a deviation from the Set Point 1 [`SP1] value.

[Prc1] This prompt appears only if output 2 hardware is present and is equal to the output 1 setting.

Default

↓

[``Pr] [``dE]

[SPc2] [SPc2]

[HYS2]

[SP2c]

WATLOW Series 988 User’s Manual 4.23

Setup Menus, Chapter 4

Setup-Output

Alarm 2

Select the alarm type for alarm 2. Select the trigger points for the alarm with the [A2LO] and [A2HI] settings in the System Menu [`SYS].

• [`Pr1] uses the process signal from input 1. Changing the set point does not change the alarm response.

• [`dE1] uses a deviation from the input 1 signal. Changing the set point changes the alarm response.

• [`Pr2] uses the process signal from input 2. This choice does not appear if the controller is not equipped with input 2 hardware or if [`In2] is set to [``no] or [`Ei2].

• [`dE2] uses a deviation from the input 2 signal. This prompt does not appear if the controller is not equipped with input 2 hardware or if [`In2] is set to [``no] or [`Ei2].

• [rAtE] uses the rate of change at input 1 in degrees per minute.

[`AL2] This prompt appears only on controllers equipped with output 2 hardware and with [`Ot2] set to [`AL2] or [AL2n].

Default

↓

[`Pr1] [`de1] [`Pr2] [`de2] [rAtE] [``no]

[`AL2] [`AL2] [`AL2] [`AL2] [`AL2] [`AL2]

Alarm 2 Side

Select what triggers alarm 2.

• [both] triggers an alarm when the signal ≤ [A2LO] or ≥ [A2HI].

• [HigH] triggers an alarm when the signal ≥ [A2HI].

• [LoW] triggers an alarm when the signal ≤ [A2LO].

[A2Sd] This prompt appears only on controllers equipped with output 2 hardware and with [`Ot2] set to [`AL2] or [AL2n].

Default

↓

[both] [HigH] [Low]

[A2Sd] [A2Sd] [A2Sd]

NOTE: See Chapter 7 for more information on alarms.

[`AL2]

[A2Sd]

4.24 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Output

Latching 2

Select whether alarm 2 will be latching or non-latching. A latching alarm [`LAt] must be turned off manually. A non-latching alarm [`nLA] turns off when an alarm condition no longer exists.

[LAt2] This prompt appears only on controllers equipped with output 2 hardware and with [`Ot2] set to [`AL2] or [AL2n].

Default

↓

[`nLA] [`LAt]

[LAt2] [LAt2]

Silencing 2

Select silencing to inhibit alarm 2 on startup and to allow the operator to reset the alarm output, not the visual display.

• Silencing disables the alarm until the signal is between [A2LO] and [A2HI].

[`AL2] This prompt appears only on controllers equipped with output 2 hardware and with [`Ot2] set to [`AL2] or [AL2n].

Default

↓

[`OFF] [``On]

[SIL2] [SIL2]

NOTE: See Chapter 7 for more information on alarms.

[LAt2]

[SIL2]

WATLOW Series 988 User’s Manual 4.25

Setup Menus, Chapter 4

Setup-Output

Output 3

Select the alarm condition for output 3.

• [`AL3] de-energizes output 3 in an alarm condition.

• [AL3n] energizes output 3 in an alarm condition.

[`Ot3] This prompt appears only on controllers equipped with output 3 hardware for a relay (98_ _-_ _ _ _-B_ _ _, 98_ _-_ _ _ _-J_ _ _ or 98_ _-_ _ _ _-K_ _ _) or switched dc (98_ _-_ _ _ _-C_ _ _).

Default

↓

[`AL3] [AL3n] [``no]

[`Ot3] [`Ot3] [`Ot3]

Alarm 3

Select the alarm type for alarm 3.

• [`Pr1] uses the process signal from input 1.

• [`dE1] uses a deviation from the input 1 signal.

• [`Pr2] uses the process signal from input 2. This prompt does not appear if the controller is not equipped with input 2 hardware or if [`In2] is set to [``no] or [`Ei2].

• [`dE2] uses a deviation from the input 2 signal. This prompt does not appear if the controller is not equipped with input 2 hardware or if [`In2] is set to [``no] or [`Ei2].

• [rAtE] uses the rate of change at input 1 in degrees per minute.

[`AL3] This prompt appears only on controllers equipped with output 3 hardware for a relay (98_ _-_ _ _ _-B_ _ _, 98_ _-_ _ _ _-J_ _ _ or 98_ _-_ _ _ _-K_ _ _) or switched dc (98_ _-_ _ _ _-C_ _ _), and with [`Ot3] set to [`AL3] or [AL3n].

Default

↓

[`Pr1] [`de1] [`Pr2] [`de2] [rAtE] [``no]

[`AL3] [`AL3] [`AL3] [`AL3] [`AL3] [`AL3]

NOTE: See Chapter 7 for more information on alarms.

[`Ot3]

[`AL3]

4.26 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Output

Alarm 3 Side

Select what triggers alarm 3.

• [both] triggers an alarm when the signal ≤ [A3LO] or ≥ [A3HI].

• [HiGH] triggers an alarm when the signal ≥ [A3HI].

• [LOW] triggers an alarm when the signal ≤ [A3LO].

[A3Sd] This prompt appears only on controllers equipped with output 3 hardware for a relay (98_ _-_ _ _ _-B_ _ _, 98_ _-_ _ _ _-J_ _ _ or 98_ _-_ _ _ _-K_ _ _) or switched dc (98_ _-_ _ _ _-C_ _ _) and with [`Ot3] set to [`AL3] or [AL3n].

Default

↓

[both] [HiGH] [LOW]

[A3Sd] [A3Sd] [A3Sd]

Hysteresis 3

Select the switching hysteresis for alarm 3. This determines the change in temperature or process units needed to turn the output from off to on.

• If [`AL3] is set to [rAtE] settings for [HYS3] will be in degrees per minute or units per minute.

• If the input referenced by [`AL3] is set to [`r†d] the range is affected as listed below.

[HYS3] This prompt appears only on controllers equipped with output 3 hardware for a relay (98_ _-_ _ _ _-B_ _ _, 98_ _-_ _ _ _-J_ _ _ or

98_ _-_ _ _ _-K_ _ _) or switched dc (98_ _-_ _ _ _-C_ _ _).

If Default

↓ ↓

[``°F] [```1] … [```3] …[`999]

[`C_F] [HYS3] [HYS3] [HYS3]

(Global Menu)

[``°F]

[`r†d] [``)1] … [``#0] …[`9(9]

[`C_F]

Input 1 or 2

[HYS3] [HYS3] [HYS3]

(Global Menu) (see note above)

[``°C] [```1] … [```2] …[`555]

[`C_F] [HYS3] [HYS3] [HYS3]

(Global Menu)

[``°C]

[`r†d] [``)1] … [``@0] …[`5%5]

[`C_F]

Input 1 or 2

[HYS3] [HYS3] [HYS3]

(Global Menu) (see note above)

[```1] … [```3] …[`999]

units

a process input

[HYS3] [HYS3] [HYS3]

is selected

NOTE: See Chapter 7 for more information on alarms.

[A3Sd]

[HYS3]

WATLOW Series 988 User’s Manual 4.27

Setup Menus, Chapter 4

Setup-Output

Latching 3

Select whether alarm 3 will be latching or non-latching. A latching alarm [`LAt] must be turned off manually. A non-latching alarm [`nLA] turns off when an alarm condition no longer exists.

[LAt3] This prompt appears only on controllers equipped with output 3 hardware for a relay (98_ _-_ _ _ _-B_ _ _, 98_ _-_ _ _ _-J_ _ _ or 98_ _-_ _ _ _-K_ _ _) or switched dc (98_ _-_ _ _ _-C_ _ _) and with [`Ot3] set to [`AL3] or [AL3n].

Default

↓

[`nLA] [`LAt]

[LAt3] [LAt3]

Silencing 3

Select silencing to inhibit alarm 3 on startup and to allow the operator to reset the alarm output, not the visual display.

• Silencing disables the alarm until the signal is between [A3LO] and [A3HI].

[SIL3] This prompt appears only on controllers equipped with output 3

hardware for a relay (98_ _-_ _ _ _-B_ _ _, 98_ _-_ _ _ _-J_ _ _ or 98_ _-_ _ _ _-K_ _ _) or switched dc (98_ _-_ _ _ _-C_ _ _) and with [`Ot3] set to [`AL3] or [AL3n].

Default

↓

[`OFF] [``On]

[SIL3] [SIL3]

NOTE: See Chapter 7 for more information on alarms.

[LAt3]

NOTE: See Chapter 7 for more information on alarms.

[SIL3]

4.28 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Output

Output 4

Select the alarm condition for output 4.

• [`AL4] de-energizes output 4 in an alarm condition.

• [AL4n] energizes output 4 in an alarm condition.

[`Ot4] This prompt appears only on controllers equipped with output 4 hardware for a relay (98_ _-_ _ _ _-_B_ _, 98_ _-_ _ _ _-_D_ _ , 98_ _-_ _ _ _-_E_ _ or 98_ _-_ _ _ _-_K_ _) or switched dc (98_ _-_ _ _ _-_C_ _).

Default

↓

[`AL4] [AL4n]

[`Ot4] [`Ot4]

Alarm 4

Select the alarm type for alarm 4.

• [`Pr1] uses a process signal from input 1.

• [`dE1] uses a deviation from the input 1 signal.

• [`Pr2] uses the process signal from input 2. This prompt does not appear if the controller is not equipped with input 2 hardware or if [`In2] is set to [``no] or [`Ei2].

• [`dE2] uses a deviation from the input 2 signal. This prompt does not appear if the controller is not equipped with input 2 hardware or if [`In2] is set to [``no] or [`Ei2].

• [rAtE] uses the rate of change at input 1 in degrees per minute.

[`AL4] This prompt appears only on controllers equipped with output 4 hardware for a relay (98_ _-_ _ _ _-_B_ _, 98_ _-_ _ _ _-_D_ _ , 98_ _-_ _ _ _-_E_ _ or 98_ _-_ _ _ _-_K_ _) or switched dc (98_ _-_ _ _ _-_C_ _).

Default

↓

[`Pr1] [`dE1] [`Pr2] [`dE2] [rAtE] [``no]

[`AL4] [`AL4] [`AL4] [`AL4] [`AL4] [`AL4]

NOTE: See Chapter 7 for more information on alarms.

[`Ot4]

[`AL4]

WATLOW Series 988 User’s Manual 4.29

Setup Menus, Chapter 4

Setup-Output

Alarm 4 Side

Select what triggers alarm 4.

• [both] triggers an alarm when the signal ≤ [A4LO] or ≥ [A4HI].

• [HiGH] triggers an alarm when the signal ≥ [A4HI].

• [LOW] triggers an alarm when the signal ≤ [A4LO].

[A4Sd] This prompt appears only on controllers equipped with output 4 hardware for a relay (98_ _-_ _ _ _-_B_ _, 98_ _-_ _ _ _-_D_ _ , 98_ _-_ _ _ _-_E_ _ or 98_ _-_ _ _ _-_K_ _) or switched dc (98_ _-_ _ _ _-_C_ _) and with [`Ot4] set to [`AL4] or [AL4n].

Default

↓

[BOTH] [HIGH] [LOW]

[A4SD] [A4SD] [A4SD]

NOTE: See Chapter 7 for more information on alarms.

[A4Sd]

4.30 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Output

Hysteresis 4

Select the switching hysteresis for alarm 4. This determines the change in temperature or process units needed to turn the output from off to on.

• If [`AL4] is set to [rAtE] settings for [HYS4] will be in degrees per

minute or units per minute.

• If the input referenced by [`AL4] is set to [`r†d] the range is affected as

listed below.

[HYS4] This prompt appears only on controllers equipped with output 4 hardware for a relay (98_ _-_ _ _ _-_B_ _, 98_ _-_ _ _ _-_D_ _ , 98_ _-_ _ _ _-_E_ _ or 98_ _-_ _ _ _-_K_ _) or switched dc (98_ _-_ _ _ _-_C_ _).

If Default

↓↓

[``°F] [```1] … [```3] … [`999]

[`C_F] [HYS4] [HYS4] [HYS4]

(Global Menu)

[``°F]

[`r†d] [``)1] … [``#0] … [`9(9]

[`C_F]

Input 1 or 2

[HYS4] [HYS4] [HYS4]

(Global Menu) (see note above)

[``°C] [```1] … [```2] … [`555]

[`C_F] [HYS4] [HYS4] [HYS4]

(Global Menu)

[``°C]

[`r†d] [``)1] … [``@0] … [`5%5]

[`C_F]

Input 1 or 2

[HYS4] [HYS4] [HYS4]

(Global Menu) (see note above)

[```1] … [```3] … [`999]

units

a process input

[HYS4] [HYS4] [HYS4]

is selected

Latching 4

Select whether alarm 4 will be latching or non-latching. A latching alarm [`LAT] must be turned off manually. A non-latching alarm [`nLA] turns off when an alarm condition no longer exists.

[LAt4] This prompt appears only on controllers equipped with output 4 hardware for a relay (98_ _-_ _ _ _-_B_ _, 98_ _-_ _ _ _-_J_ _ or 98_ _-_ _ _ _-_K_ _) or switched dc (98_ _-_ _ _ _-_C_ _). and with [`Ot4] set to [`AL4] or [AL4n].

Default

↓

[`nLA] [`LAt]

[LAt4] [LAt4]

NOTE: See Chapter 7 for more information on alarms.

[LAt4]

[HYS4]

WATLOW Series 988 User’s Manual 4.31

Setup Menus, Chapter 4

Setup-Output

Silencing 4

Select silencing to inhibit alarm 4 on startup and to allow the operator to reset the alarm output, not the visual display.

• Silencing disables the alarm until the signal is between [A4LO] and [A4HI].

[SIL4] This prompt appears only on controllers equipped with output 4

hardware for a relay (98_ _-_ _ _ _-_B_ _, 98_ _-_ _ _ _-_D_ _ , 98_ _-_ _ _ _-_E_ _ or 98_ _-_ _ _ _-_K_ _) or switched dc (98_ _-_ _ _ _-_C_ _) and with [`Ot4] set to [`AL4] or [AL4n].

Default

↓

[`OFF] [``On]

[SIL4] [SIL4]

Analog Output

Select which value to retransmit as the output 3 signal.

• [Prc1] retransmits the process 1 value.

• [StPt] retransmits the set point.

• [Prc2] retransmits the process 2 value. This prompt appears only if the controller is equipped with input 2 hardware and if [`In2] is not set to [``no] or [`Ei2].

• [``no] turns off retransmit function.

[Aout] This prompt appears only on controllers equipped with retransmit hardware (98_ _-_ _ _ _-M_ _ _ or 98_ _-_ _ _ _-N_ _ _).

Default

↓

[Prc1] [StPt] [Prc2] [``no]

[Aout] [Aout] [Aout] [Aout]

NOTE: See Chapter 7 for more information on alarms.

[SIL4]

NOTE: See Chapter 8 for more information on retransmit.

[Aout]

4.32 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Output

Process 3

Select the range for the retransmit signal at output 3.

[Prc3] This prompt appears only on controllers equipped with retransmit hardware (98_ _-_ _ _ _-M_ _ _ or 98_ _-_ _ _ _-N_ _ _) and with [Aout] not set to [``no].

Default

↓

4-20mA 0-20mA 0-5VÎ 1-5VÎ 0-10VÎ (dc)

[4-20] [0-20] [`0-5] [`1-5] [0-10]

[Prc3] [Prc3] [Prc3] [Prc3] [Prc3]

Retransmit Low Limit

Select the low limit for the retransmit signal at output 3.

• The default value is equal to [`rL1] or [`rL2] (in the Input Menu)

depending on whether [Aout] is set to [Prc1] or [Prc2].

• The decimal precision of [A`rL] is determined by [dEC1] (Input Menu) if [Aout] is set to [Prc1] or [StPt]; it is determined by [dEC2] if [Aout] is set to [Prc2].

[A`rL] This prompt appears only on controllers equipped with retransmit hardware (98_ _-_ _ _ _-M_ _ _ or 98_ _-_ _ _ _-N_ _ _) and with [Aout] not set to [``no].

[-999] … [A`rH]

[A`rL] [A`rL]

NOTE: See Chapter 8 for more information on retransmit.

[A`rL]

[Prc3]

WATLOW Series 988 User’s Manual 4.33

Setup Menus, Chapter 4

Setup-Output

Retransmit High Limit

Select the high limit for the retransmit signal at output 3.

• The default value is equal to [`rH1] or [`rH2] (in the Input Menu) depending on whether [Aout] is set to [Prc1] or [Prc2].

• The decimal precision of [ACAL] is determined by [dEC1] (Input Menu) if

[Aout] is set to [Prc1] or [StPt]; it is determined by [dEC2] if [Aout] is set to [Prc2].

[A`rH] This prompt appears only on controllers equipped with retransmit hardware (98_ _-_ _ _ _-M_ _ _ or 98_ _-_ _ _ _-N_ _ _) and with [Aout] not set to [``no].

[A`rL] … [9999]

[A`rH] [A`rH]

Retransmit Calibration Offset

Select an offset value for the retransmit signal at output 3.

• The decimal precision of [ACAL] is determined by [dEC1] (Input Menu) if

[Aout] is set to [Prc1] or [StPt]; it is determined by [dEC2] if [Aout] is set to [Prc2].

[ACAL] This prompt appears only on controllers equipped with retransmit

hardware (98_ _-_ _ _ _-M_ _ _ or 98_ _-_ _ _ _-N_ _ _) and with [Aout] not set to [``no].

If Default

↓ ↓

[``°F] [-999] … [```0] … [`999]

[`C_F] [ACAL] [ACAL] [ACAL]

(Global Menu)

[``°C] [-555] … [```0] … [`555]

[`C_F] [ACAL] [ACAL] [ACAL]

(Global Menu)

[-999] … [```0] … [`999]

units

a process input [ACAL] [ACAL] [ACAL]

is selected

[A`rH]

NOTE: See Chapter 8 for more information on retransmit.

[ACAL]

MODE

*Ramp Rate

*Ramping Function

Auto-tune Set Point

High Power Limit

Low Power Limit

Annunciator

*Event Input 2

Event Input 1

*Crossover Process Value

*PID 2 Crossover Selection

*Algorithm

*Control Type

*Cascade Action

Setup prompt

*Celsius-Fahrenheit

Failure Mode

Error Latching

Enter your settings, from the controller's upper display.

MODE

Event Input (p. 4.40)

PID (p. 4.38)

Ramping (p. 4.43)

*Crossover Set Point Value

[GlbL]

[`Set]

[FaIL]

[`C_F]

[`Err]

[CntL]

[CSAC]

[ALGO]

[Pid2]



[Proc]

[StPt]

[`EiI]

[`Ei2]

[Anun]

[`LoP]

[`HiP]

[AtSp]

[``rP]

[Rate]

4.34 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Global

❸ Press the Mode key µ to step through the prompts.

❹ Press the Up-arrow key > or the Down-arrow key < to select one of

the prompt values.

❶ Begin in the Display Loop, and press the Up-arrow > and Down-

arrow < keys simultaneously for three seconds to reach the Setup Menus.

❷ Press the Up-arrow key > to select one of the Setup Menus.

Reaching the Global Menu

Figure 4.34 Navigating the Global Menu.

*Prompts may not appear, depending on controller configuration.

p. 4.2 p. 4.18 p. 4.34 p. 4.44

(p.

4.38

)

(p. 4.40

)

(

4.43

)

[Inpt]

[`Set]

Input

p. 4.2

[OtPt] [gLbL] [COm]

[`Set] [`Set]

Output

p. 4.18

Global

p. 4.34

[`Set]

Communications Menu p. 4.44

[``°F]

[`C_F]

[```0]

[rate]

[``°C]

[`C_F]

…

[```1] [```2] [9999]

[rate]

…

[rate]

…

[rate]

WATLOW Series 988 User’s Manual 4.35

Setup Menus, Chapter 4

Setup-Global

Global Prompts

When you are in the Setup menus, the Series 988 displays the menu selection ([InPt], [OtPt], [GLbL] or [COM]) in the upper display, and [`SEt] in the lower display.

Celsius-Fahrenheit

Select which temperature scale the controller will use.

[`C_F] This prompt appears only on controllers with either Input 1 or Input 2 set to something other than a process input.

Default

↓

[``°F] [``°C]

[`C_F] [`C_F]

Failure Mode

Select the output level that the controller will maintain if an input fails.

• Bumpless transfer [bPLS] maintains the same output settings after an

input failure.

[FAIL] This prompt always appears.

If Default

↓ ↓

[bPLS] [-100] … [`100]

a heat/cool

[FAIL] [FAIL] [FAIL]

application

[bPLS] [```0] … [`100]

a heat-only

[FAIL] [FAIL] [FAIL]

application

[bPLS] [-100] … [```0]

a cool-only

[FAIL] [FAIL] [FAIL]

application

NOTE: Decimal points may not always be in the position specified below depending on the the settings in the Decimal 1 [dEC1] and Decimal 2 [dEC2] parame- ters in the Input Menu.

[`C_F]

[FAIL]

4.36 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Global

Error Latching

Select whether errors will be latching or non-latching.

• Non-latching alarms [`nLA] turn off when there is no alarm condition.

• Latching alarms [`LAt] must be turned off manually.

[`Err] This prompt always appears.

Default

↓

[`nLA] [`LAt]

[`Err] [`Err]

Control Type

Select a control method: normal [`nor]; cascade [CSCd]; ratio [rAti]; or differential [diFF].

[CntL] This prompt appears only on controllers equipped with enhanced software (98_B-_ _ _ _-_ _ _ _) and input 2 hardware for a basic thermocouple signal conditioner (98_ _-_1_ _-_ _ _ _) or a universal signal conditioner (98_ _-_2_ _-_ _ _ _) and with [`rSP] set to [`OFF].

Default

↓

[`nor] [CSCd] [rAti] [diFF]

[CntL] [CntL] [CntL] [CntL]

[`Err]

[CntL]

WATLOW Series 988 User’s Manual 4.37

Setup Menus, Chapter 4

Setup-Global

Cascade Action

Select the control action between the inner and outer loop of a cascade system.

• Direct action [`dir] makes the percent output from the outer loop directly proportional to the set point of the inner loop (input 2). A 100% signal in the outer loop will set the inner loop to range high 2 [`rH2] (Input Menu). A 0% signal in the outer loop will set the inner loop to range low 2 [`rL2] (Input Menu).

• Reverse action [`rEU] makes the percent output from the outer loop inversely proportional to the set point of the inner loop (input 2). A 100% signal in the outer loop will set the inner loop to range low 2 [`rL2] (Input Menu). A 0% signal in the outer loop will set the inner loop to range high 2 [`rH2] (Input Menu).

[CSAC] This prompt appears only on controllers equipped with enhanced software (98_B-_ _ _ _-_ _ _ _) and with [CntL] set to [CSCd].

Default

↓

[`dir] [`rEU]

[CASC] [CASC]

[CSAC]

4.38 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Global

Algorithm

Select the control algorithm.

• [`Pid] selects one set of PID prompts.

• [`Pdr] selects proportional/derivative control with manual reset in percent power.

• [Pid2] selects two complete sets of PID prompts. This selection does not appear if [CntL] is set to [CSCd].

• [dUPL] selects duplex (heating and cooling) control. This prompt does not appear unless output 1 is a process output.

[ALGO] This prompt appears only on controllers equipped with enhanced software (98_B-_ _ _ _-_ _ _ _).

Default

↓

[`Pid] [`Pdr] [Pid2] [dUPL]

[ALGO] [ALGO] [ALGO] [ALGO]

PID 2 Crossover Selection

Select which parameter determines the crossover from PID A to PID B: process [Proc]; set point [StPt]; or none [``no].

[Pid2] This prompt appears only on controllers with [ALGO] set to [Pid2].

Default

↓

[Proc] [StPt] [``no]

[Pid2] [Pid2] [Pid2]

[ALGO]

[Pid2]

WATLOW Series 988 User’s Manual 4.39

Setup Menus, Chapter 4

Setup-Global

Crossover Process Value

Select the process value at which the control algorithm will crossover between PID A and PID B. PID A is active below this value and PID B is

active above this value.

• This value cannot be set lower than range low 1 [`rL1] or higher than range high 1 [`rH1].

[Proc] This prompt appears only on controllers with [Pid2] set to [Proc].

Default

↓

[`rL1] [`rH1]

[Proc] [Proc]

Crossover Set Point Value

Select the set point value at which the control algorithm will crossover between PID A and PID B. PID A is active below this value and

PID B is active above this value.

• This value cannot be set lower than range low 1 [`rL1] or higher than range high 1 [`rH1].

[StPt] This prompt appears only on controllers with [Pid2] set to [StPt].

Default

↓

[`rL1] [`rH1]

[StPt] [StPt]

[Proc]

[StPt]

4.40 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Global

Event Input 1

Select the effect of closing the event input 1 switch.

• [``no] disables event input 1.

• [`LOC] locks out the front panel keys.

• [`ALr] resets an alarm.

• [A-M] switches the controller to manual mode at the power level set at [FAIL] (Global Menu) and disables the Auto/Man  key.

• [`OFF] turns all control outputs off (de-energize relays).

• [`Pid] switches from PID A to PID B.

• [Actn] selects the opposite control action for output 1 and 2.

• [`rSP] switches to a remote set point.

• [IdSP] switches to an idle or second set point.

[`Ei1] This prompt always appears.

Default

↓

[``no] [`LOC] [`ALr] [A-M] [`OFF] [`Pid] [Actn] [`rsp] [IdSP]

[`Ei1] [`Ei1] [`Ei1] [`Ei1] [`Ei1] [`Ei1] [`Ei1] [`Ei1] [`Ei1]

Event Input 2

Select the effect of closing the event input 2 switch. The selections are the same as for event input 1.

[`Ei2] This prompt appears only on controllers equipped with hardware for a second event input (98_ _-_5_ _-_ _ _ _) and with [`In2] set to [`Ei2].

Default

↓

[``no] [`LOC] [`ALr] [A-M] [`OFF] [`Pid] [Actn] [IdSP]

[`Ei2] [`Ei2] [`Ei2] [`Ei2] [`Ei2] [`Ei2] [`Ei2] [`Ei2]

[`Ei1]

[`Ei2]

WATLOW Series 988 User’s Manual 4.41

Setup Menus, Chapter 4

Setup-Global

Annunciator

Select whether alarm messages will flash in the lower display.

[Anun] This prompt always appears.

Default

↓

[``on] [`OFF]

[Anun] [Anun]

Low Power Limit

Select the low limit for the percent output. For cooling (direct acting) enter a negative number.

[`LoP] This prompt always appears.

If Default

↓ ↓

[-100]%… [`Hip]

a heat/cool

[`LoP] [`LoP]

application

[```0]%… [`Hip]

a heat only

[`LoP] [`LoP]

application

[-100]%… [`Hip]

a cool only

[`LoP] [`LoP]

application

[Anun]

[`LoP]

4.42 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Global

High Power Limit

Select the high limit for the percent output. For cooling (direct acting) enter a negative number.

[`HiP] This prompt always appears.

If Default

↓ ↓

[`LoP] … [`100]

a heat/cool

[`HiP] [`HiP]

application

[`LoP] … [`100]

a heat only

[`HiP] [`HiP]

application

[`LoP] … [```0]

a cool only

[`HiP] [`HiP]

application

Auto-tune Set Point

Select the percentage at which the controller will auto tune the current control set point.

[AtSP] This prompt always appears.

Default

↓

[``50] … [``90] … [`150] %

[AtSP] [AtSP] [AtSP]

[`HiP]

[AtSP]

WATLOW Series 988 User’s Manual 4.43

Setup Menus, Chapter 4

Setup-Global

Ramping Function

Select when the controller will ramp. Ramping limits the speed at which an element can heat up. Ramping is often used to protect parts that would crack or warp if they heat up too quickly.

• [`OFF] sets the system to heat as quickly as possible.

• [Strt] sets the system to ramp only at startup.

• [StPt] sets the system to ramp at startup and whenever the set point changes.

[``rP] This prompt appears only on controllers with [`rSP] (Input Menu) set to [`OFF] and with [`Ei1] not set to [`rSP] and with [CntL] (Global Menu) not set to [diff] or [rati].

Default

↓

[`OFF] [Strt] [StPt]

[``rP] [``rP] [``rP]

Ramp Rate

Select the ramping rate in degrees per minute.

[rAtE] This prompt appears only on controllers with [``rP] set to [Strt] or [StPt].

Default

↓

[``90] … [`100] … [9999] °/min.

[rAtE] ][rAtE] [rAtE]

[``rP]

[rAtE]

4.44 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Comm

NOTE: The Communications Menu appears only on controllers equipped with communications hardware (98_ _-_ _ _ _-_R_ _, 98 _ _-_ _ _ _-_U_ _ or 98_ _-_ _ _ _-_S_ _).

See

Data Communications with the Series 988 Family of Controllers

for detailed informa-

tion on communications.

❸ Press the Mode key µ to step through the prompts.

❹ Press the Up-arrow key > or the Down-arrow key < to select one of

the prompt values.

❶ Begin in the Display Loop, and press the Up-arrow > and Down-

arrow < keys simultaneously for three seconds to reach the Setup Menus.

❷ Press the Up-arrow key > to select one of the Setup Menus.

Reaching the Communications Menu

Figure 4.44 Navigating the Communications Menu.

*Prompts may not appear, depending on controller configuration.

p. 4.2 p. 4.18 p. 4.34 p. 4.44

[Inpt]

[`Set]

Input

p. 4.2

[OtPt] [gLbL] [COm]

[`Set] [`Set]

Output

p. 4.18

Global

p. 4.34

[`Set]

Communications Menu p. 4.44

MODE

[COm]

[`Set]

Setup Prompt

[BaUd]

Baud Rate

[Data]

Data Bits and Parity

[Prot]

Protocol Type

[addr]

*Address

[IntF]

*Interface Type



Enter your settings, from the controller's upper display.



… …

[9600]

[baUD]

[`300]

[baUD] [baUD]

[1200] [4800]

[`485][`422]

[Intf] [Intf]

…

[baUD]

WATLOW Series 988 User’s Manual 4.45

Setup Menus, Chapter 4

Setup-Comm

Communications Prompts

When you are in the Setup menus, the Series 988 displays the menu selection ( [InPt], [OtPt], [GLbL] or [COM] ) in the upper display, and [`SEt] in the lower display.

Baud Rate

Select the communications speed.

[bAUd] This prompt appears only on controllers equipped with communications hardware (98_ _-_ _ _ _-_R_ _, 98_ _-_ _ _ _-_U_ _ or 98_ _-_ _ _ __S_ _).

Default

↓

[9600] [`300] [`600] [1200] [2400] [4800]

[bAUd] [bAUd] [bAUd] [bAUd] [bAUd] [bAUd]

Data Bits and Parity

Select the communications format (start bit = 1, stop bit = 1).

• Setting [Prot] to [Mod] automatically sets [dAtA] to [``8n].

[dAtA] This prompt appears only on controllers equipped with communi-

cations hardware (98_ _-_ _ _ _-_R_ _, 98_ _-_ _ _ _-_U_ _ or 98_ _-_ _ _ __S_ _).

Default

↓

[``7o] [``7E] [``8n]

[dAtA] [dAtA] [dAtA]

[bAUd]

[dAtA]

4.46 WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Comm

Protocol Type

Select the communications protocol.

• [FULL] selects ANSI X3.28 2.2 - A.3.

• [``on] selects Xon/Xoff.

• [Mod] selects Modbus

[Prot] This prompt appears only on controllers equipped with communi-

cations hardware (98_ _-_ _ _ _-_R_ _, 98_ _-_ _ _ _-_U_ _ or 98_ _-_ _ _ __S_ _).

Default

↓

[FULL] [``On] [mod]

[Prot] [Prot] [Prot]

Address

Select an address for the controller. The computer will use this address when communicating with this controller.

[Addr] This prompt appears only on controllers equipped with communications hardware for EIA/TIA-485 and EIA/TIA-422.

If Default

↓ ↓

[`485] [```0]…[``31]

[IntF] [Addr] [Addr]

[`422] [```0]…[```9]

[Intf] [Addr] [Addr]

[Mod] [```0] …[```1]… [`247]

[Intf] [Addr] [Addr] [Addr]

[Prot]

[Addr]

WATLOW Series 988 User’s Manual 4.47

Setup Menus, Chapter 4

Setup-Comm

Interface Type

Select the interface type for Output 4, Option S.

• [`485] selects EIA/TIA-485.

• [`422] selects EIA/TIA-422.

[IntF] This prompt appears only on controllers equipped with communications hardware for EIA/TIA-485 and EIA/TIA-422 (98_ _-_ _ _ _-_S_ _).

Default

↓

[`485] [`422]

[IntF] [IntF]

Interface Type

Select the interface type for Output 4, Option U.

• [`485] selects EIA/TIA-485.

• [`232] selects EIA/TIA-232.

[IntF] This prompt appears only on controllers equipped with communications hardware for EIA/TIA-485 and EIA/TIA-232 (98_ _-_ _ _ _-_U_ _).

Default

↓

[`232] [`485]

[IntF] [IntF]

[IntF]

PROCESS

L1 L2 L3 L4

DEV

% OUT

DISPLAY

SERIES 988

MODE

AUTO

MAN

WATLOW Series 988 User’s Manual 5.1

Operation Menus, Chapter 5

Navigating the Operation Menus

To reach the Operation Menus, begin in the Display Loop and press the Mode key µ. Depending on the controller configuration, either the Set Point 2 prompt [`SP2], the Idle Set Point prompt [IdSP] or the Operation Menu prompt [OPEr] will appear in the lower display. The three Operation Menus are: System [`SYS]; PID A [PidA]; and PID B [Pidb]. Use the Mode key µ to step past the Set Point 2 prompt [`SP2] or the Idle Set Point prompt [IdSP], if they appear (see prompt information). Upon reaching the Operation Menu prompt [OPEr] use the Up-arrow > or Downarrow < key to select a menu and the Mode key µ to step through a menu.

You will not see every prompt in any of these menus. The unit’s configuration and model number determine which prompts appear. After stepping through each menu, the Series 988 returns to the Operation Menu prompt [OPEr]. Use the Up-arrow > and Down-arrow < keys to select the next menu, or use the Mode key µ to advance through the same menu again. To move backwards through the menu hold the Mode key µ down and press the Up-arrow key >. Use the Up-arrow > or Down-arrow < key to change the prompt setting.

Chapter 5 The Operation Menus

Figure 5.1 Navigating the Operation Menus.

System

p. 5.2

PID A

p. 5.9

PID B Menu

p. 5.9

Set Point 2

MODE

Idle Set Point

[`988]

[`SP2]

[`988]

[IdSP]

[`SyS]

[PIdb]

[PIDA]

[OPEr]

❶ Begin in the Display Loop, and press the Mode key

µ to reach the Set Point 2 prompt [`SP2], the Idle Set Point prompt [IdSP] or the Operation Menu [OPEr].

❷ Use the Mode key µ to step past the Set Point 2 prompt [`SP2] or the Idle Set Point prompt [IdSP], if

they appear (see prompt information). Upon reaching the Operation Menu prompt [OPEr] use the Up-arrow > key to select a menu.

PROCESS

L1 L2 L3 L4

DEV

% OUT

DISPLAY

SERIES 988

MODE

AUTO

MAN

NOTE: Press the Display key ∂ to return to the Display Loop from any point in any menu.

p. 5.2 p. 5.9 p. 5.9

5.2 WATLOW Series 988 User’s Manual

Operation Menus, Chapter 5

Figure 5.2 The System Menu.

Operation-System

❸ Select the System Menu, then press the Mode key µ to step

through the prompts.

❹ Press the Up-arrow key > to step through the prompt values. The

Down-arrow key < backs through the values.

…

[-999]

[A2LO]

[-998]

[A2LO]

[-997]

[A2LO]

[```0]

[A2LO]

*Prompts may not appear, depending on controller configuration.

TLTL

PROCESS

L1 L2 L3 L4

DEV

% OUT

DISPLAY

SERIES 988

MODE

AUTO

MAN

Reaching the System Menu

(p. 5.3

)

(p. 5.4

)

(p. 5.4

)

MODE

[`SP2]

[IdSP]

[`SyS]

[`SP2]

[Ei1S]

[Ei2S]

[A2LO]

[A2HI]

[A3LO]

[A3HI]

[A4LO]

[A4HI]

[`AUT]

[`L-r]

*Set Point 2

*Idle Set Point

Operation Prompt

*Event Input 1 Status

*Event Input 2 Status

*Alarm 2 Low

*Alarm 2 High

*Alarm 3 Low

*Alarm 3 High

*Alarm 4 Low

*Alarm 4 High

*Auto-tune

*Local-remote

Enter your settings, from the controller's upper display.

Set Points (p. 5.3)

Event Input (p. 5.4)

Alarms (p. 5.4)

Operation-System

WATLOW Series 988 User’s Manual 5.3

Operation Menus, Chapter 5

System Prompts

After you step past the Set Point 2 prompt [`SP2] and the Idle Set Point prompt [IdSP] to the Operation menus, the Series 988 displays the menu selection ( [`SYS], [PidA] or [PidB] ) in the upper display and [OPEr] in the lower display.

Set Point 2

Select a second set point that will activate output 2. This allows you to boost the heating or cooling action of the output 1 device.

• The range and default settings depend on the [`In1], [`rL1] and

[`rH1] settings (Input Menu).

[`SP2] This prompt appears only if [`Ot1] and [`Ot2] (Output Menu) are both set to [``Ht] or [``CL].

[`rL1] … [`rH1]

[`SP2] [`SP2]

Idle Set Point

Select the set point to be activated by an event input. This allows you to select a temperature that will be maintained when the application is idle.

• The range and default settings depend on the [`In1], [`rL1] and

[`rHI] settings (Input Menu).

[IdSP] This prompt appears only if [`Ei1] or [`Ei2] (Global Menu) is set to [IdSP].

[`rL1] … [`rH1]

[IdSP] [IdSP]

NOTE: Decimal points may not always be in the position specified below depending on the the settings in the Decimal 1 [dEC1] and Decimal 2 [dEC2] parame- ters in the Input Menu.

[`SP2]

[IdSP]

5.4 WATLOW Series 988 User’s Manual

Operation Menus, Chapter 5

Operation-System

Event Input 1 Status

Indicates whether the event input 1 circuit is open or closed (read only).

[Ei1S] This prompt appears only if [`Ei1] (Global Menu) is set to something other than [``no].

Default

↓

[OpEn] [CLOS]

[Ei1S] [Ei1S]

Event Input 2 Status

Indicates whether the event input 2 circuit is open or closed (read only).

[Ei2S] This prompt appears only on controllers equipped with a second digital event input (98_ _-_5_ _-_ _ _ _) and with [`Ei2] (Global Menu) set to something other than [``no].

Default

↓

[OpEn] [CLOS]

[Ei2S] [Ei2S]

Alarm 2 Low

Select the low trigger value for the output 2 alarm.

[A2LO] This prompt appears only if [`AL2] (Output Menu) is set to something other than [``no].

If Default

↓ ↓

lowest

[`Pr1] or [`pr2] value of … value of … [A2HI]

[`AL2] [`AL2] sensor [`rL1] (or [`rL2] ) [A2LO]

(Output Menu) range (Input Menu)

[`dE1] or [`dE2] or [rAtE] [-999] … [```0]

[`AL2] [`AL2] [`AL2] [A2LO] [A2LO]

(Output Menu)

[Ei1S]

[Ei2S]

[A2LO]

WATLOW Series 988 User’s Manual 5.5

Operation Menus, Chapter 5

Operation-System

Alarm 2 High

Select the high trigger value for the output 2 alarm.

[A2HI] This prompt appears only if [`AL2] (Output Menu) is set to something other than [``no].

If Default

↓ ↓

highest

[`Pr1] or [`pr2] [A2LO] … value of … value of

[`AL2] [`AL2] [A2HI] [`rH1] (or [`rH2] ) sensor

(Output Menu) (Input Menu) range

[`dE1] or [`dE2] or [rAtE] [```0] … [`999] … [9999]

[`AL2] [`AL2] [`AL2] [A2HI] [A2HI] [A2HI]

(Output Menu)

Alarm 3 Low

Select the low trigger value for the output 3 alarm.

[A3LO] This prompt appears only if [`AL3] (Output Menu) is set to something other than [``no].

If Default

↓ ↓

lowest

[`Pr1] or [`pr2] value of … value of … [A3HI]

[`AL3] [`AL3] sensor [`rL1] (or [`rL2] ) [A3LO]

(Output Menu) range (Input Menu)

[`dE1] or [`dE2] or [rAtE] [-999] … [```0]

[`AL3] [`AL3] [`AL3] [A3LO] [A3LO]

(Output Menu)

[A3LO]

[A2HI]

5.6 WATLOW Series 988 User’s Manual

Operation Menus, Chapter 5

Operation-System

Alarm 3 High

Select the high trigger value for the output 3 alarm.

[A3HI] This prompt appears only if [`AL3] (Output Menu) is set to something other than [``no].

If Default

↓ ↓

highest

[`Pr1] or [`pr2] [A3LO] … value of … value of

[`AL3] [`AL3] [A3HI] [`rH1] (or [`rH2] ) sensor

(Output Menu) (Input Menu) range

[`dE1] or [`dE2] or [rAtE] [```0] … [`999] … [9999]

[`AL3] [`AL3] [`AL3] [A3HI] [A3HI] [A3HI]

(Output Menu)

Alarm 4 Low

Select the low trigger value for the output 4 alarm.

[A4LO] This prompt appears only if [`AL4] (Output Menu) is set to something other than [``no].

If Default

↓ ↓

lowest

[`Pr1] or [`pr2] value of … value of … [A4HI]

[`AL4 [`AL4] sensor [`rL1] (or [`rL2] ) [A4LO]

(Output Menu) range (Input Menu)

[`dE1] or [`dE2] or [rAtE] [-999] … [```0]

[`AL4] [`AL4] [`AL4] [A4LO] [A4LO]

(Output Menu)

[A3HI]

[A4LO]

WATLOW Series 988 User’s Manual 5.7

Operation Menus, Chapter 5

Operation-System

Alarm 4 High

Select the high trigger value for the output 4 alarm.

[A4HI] This prompt appears only if [`AL4] (Output Menu) is set to something other than [``no].

If Default

↓ ↓

highest

[`Pr1] or [`pr2] [A4LO] … value of … value of

[`AL4] [`AL4] [A4HI] [`rH1] (or [`rH2]) sensor

(Output Menu) (Input Menu) range

[`dE1] or [`dE2] or [rAtE] [```0] … [`999] … [9999]

[`AL4] [`AL4] [`AL4] [A4HI] [A4HI] [A4HI]

(Output Menu)

Auto-tune

Initiate an auto-tune.

[Pidb] appears only on controllers with enhanced software (98_B-_ _ _ _-_

_ _) and with [ALgO] (Global Menu) set to [Pid2] or [cscd].

[`AUt] This prompt always appears.

Default

↓

[`OFF] [PidA] [Pidb]

[`AUt] [`AUt] [`AUt]

[A4HI]

[`AUt]

NOTE: For more information on auto-tune see Chapter 7.

5.8 WATLOW Series 988 User’s Manual

Operation Menus, Chapter 5

Local-remote

Select a local or remote set point. With [```r] selected the controller displays the remote set point rather than the internal (local) set point, and the set point cannot be changed with the Up-arrow or Down-arrow key.

[`L-r] This prompt appears only if [`rSP] (Input Menu) is set to [``On].

Default

↓

[```L] [```r]

[`L-r] [`L-r]

Operation-System

[`L-r]

MODE

*Cycle Time,

Output 1B

*Rate,

Output 1B

*Derivative,

Output 1B

*Operation Prompt

*Proportional Band, Output 1B

*Reset,

Output 1B

*Integral,

Output 1B

Enter your settings, from the controller's upper display.

MODE

Output 2 (p. 5.13)

Output 1 (p. 5.10)

*Cycle Time,

Output 2B

*Rate,

Output 2B

*Derivative,

Output 2B

*Proportional Band, Output 2B

*Reset,

Output 2B

*Integral,

Output 2B

*Dead Band B

MODE

[PIdb]

[OPer]   {Pb1b]   [RE1b]   [It1b]   [rA1b]   [de1b]   {CT1b}   [Pb2b]   [re2b]   [It2b}    [rA2b]   [dE2b]   [Ct2b]   [db`b]

WATLOW Series 988 User’s Manual 5.9

Operation Menus, Chapter 5

MODE

*Cycle Time,

Output 1

*Rate,

Output 1

*Derivative,

Output 1

Operation Prompt

Proportional Band, Output 1A

*Reset,

Output 1A

*Integral,

Output 1

Enter your settings, from the controller's upper display.

MODE

Output 2 (p. 5.13)

Output 1 (p. 5.10)

*Cycle Time,

Output 2

*Rate,

Output 2

*Derivative,

Output 2

*Proportional Band, Output 2A

*Reset,

Output 2

*Integral,

Output 2

*Dead Band A

MODE

[PIDA]

[Oper]

[````]

[Pb1A]

[````]

[RE1A]

[````]

[It1A]

[````]

[rA1A]

[````]

[dE1A]

[````]

[Ct1A]

[````]

[Pb2A]

[````]

[Re2A]

[````]

[It2A]

[````]

[rA2A]

[````]

[dE2A]

[````]

[Ct2A]

[````]

[db`A]



System

p. 5.2

PID A

p. 5.9

PID B Menu

p. 5.9

Set Point 2

MODE

Idle Set Point

[`988]

[`SP2]

[`988]

[IdSP]

[`SyS]

[PIdb]

[PIDA]

[OPEr]

❶ Begin in the Display Loop, and press the Mode key µ to reach the

Set Point 2 prompt [`SP2], the Idle Set Point prompt [IdSP] or the System Menu [`SYS].

❷ Use Mode key µ to step past the Set Point 2 prompt [`SP2] and

the Idle Set Point prompt [IdSP], if they appear (see prompt information). Upon reaching the Operation Menu prompt [OPEr] use the Uparrow > key to select a menu.

Figure 5.9 The PID Menus.

❸ Press the Mode key µ to step through the prompts.

❹ Press the Up-arrow key > to step through the prompt values.

The Down-arrow key < backs through the values.

…

[`)00]

[dE1A]

[`)01]

[dE1A]

[`)02]

[dE1A]

[`(99]

[dE1A]

*Prompts may not appear, depending on controller configuration.

Reaching the PID Menus

Operation-PID A or B

(p. 5.10

)

(p. 5.13

)

(p. 5.10

)

(p. 5.13

)

p. 5.2 p. 5.9 p. 5.9

5.10 WATLOW Series 988 User’s Manual

Operation Menus, Chapter 5

Operation-PID A or B

PID A or PID B Prompts

After you step past the Set Point 2 prompt [`SP2] and the Idle Set Point prompt [IdSP] to the Operation menus, the Series 988 displays the menu selection ( [`SYS], [PidA] or [Pidb] ) in the upper display and [OPEr] in the lower display.

Proportional Band, Output 1A or 1B

Select the proportional band for PID output 1. If set to [```0] it func- tions as an on/off control, and the switching differential is determined by the [HYS1] value (Output Menu). The decimal precision is determined by

[dEC1] (Input Menu).

[Pb1A] This prompt always appears.

If Default

↓ ↓

[``US]

[``°F] [```0]…[``25]…[9999]

[`dFL] [`C_F] [Pb1A] [Pb1A] [Pb1A]

(Calibration Menu)(Global Menu)

[`r†d] [``)0]…[``25]…[99(9]

Input 1 or 2

[Pb1A] [Pb1A] [Pb1A]

(Input Menu)

[``US]

[``°C] [```0]…[``14]…[9999]

[`dFL] [`C_F] [Pb1A] [Pb1A] [Pb1A]

(Calibration Menu)(Global Menu)

[`r†d] [``)0]…[``14]…[99(9]

Input 1 or 2

[Pb1A] [Pb1A] [Pb1A]

(Input Menu)

[``SI]

[Pid2] [``)0]…[``#0]…[99(9]

% of span

[`dFL] [ALgO] [Pb1A] [Pb1A] [Pb1A]

(Calibration Menu) (Global Menu)

NOTE: Decimal points may not always be in the position specified below depending on the the settings in the Decimal 1 [dEC1] and Decimal 2 [dEC2] parame- ters in the Input Menu.

[Pb1A] [Pb1b]

NOTE: The PID B Menu appears only on controllers with enhanced software (98_B-_ _ _ _-_ _ _ _) and with [AhgO] set to [Pid2].

WATLOW Series 988 User’s Manual 5.11

Operation Menus, Chapter 5

Operation-PID A or B

Reset, Output 1A or 1B

Tune reset to eliminate the offset or droop between the set point and the actual process temperature for PID output 1. When set to [```0]

reset is disabled.

[rE1A] This prompt appears only if [`dFL] (Calibration Menu) is set to [``US] and [Pb1A] is not set to [```0].

If Default

↓ ↓

[00)0] … [99(9] repeats/min.

[rE1A] [rE1A]

[`Pdr] [=0)0]% … [``)0] % … [10)0] %

[ALG0] [rE1A] [rE1A] [rE1A]

(Global Menu)

Integral, Output 1A or 1B

Tune integral to eliminate the offset or droop between the set point and the actual process temperature for PID output 1. When set to

[```0] integral is disabled.

[It1A] This prompt appears only if [`dFL] (Calibration Menu) is set to [``S1] and [Pb1A] is not set to [```0].

Default

↓

[`)00] … [9(99] min. / repeat

[It1A] [It1A]

[rE1A] [rE1b]

[It1A] [It1b]

NOTE: The PID B Menu appears only on controllers with enhanced software (98_B-_ _ _ _-_ _ _ _).

5.12 WATLOW Series 988 User’s Manual

Operation Menus, Chapter 5

Operation-PID A or B

Rate, Output 1A or 1B

Adjust the rate to eliminate overshoot on startup or after the set point changes. The rate setting will not influence the percent power if the

process temperature is more than twice the proportional band from the set point. When set to [```0] rate is disabled.

[rA1A] This prompt appears only if [`dfL] (Calibration Menu) is set to [``US] and [Pb1A] is set higher than [```0].

Default

↓

[`)00] … [`(99] min.

[rA1A] [rA1A]

Derivative, Output 1A or 1B

Adjust the derivative to eliminate overshoot on startup or after the set point changes. The derivative setting will not influence the percent

power if the process temperature is more than twice the proportional band from the set point. When set to [```0] derivative is disabled.

[dE1A] This prompt appears only if [`dFL] (Calibration Menu) is set to [``SI] and [Pb1A] is set higher than [```0].

Default

↓

[`)00] … [`(99] min.

[dE1A] [dE1A]

[rA1A] [rA1b]

[dE1A] [dE1b]

NOTE: The PID B Menu appears only on controllers with enhanced software (98_B-_ _ _ _-_ _ _ _).

WATLOW Series 988 User’s Manual 5.13

Operation Menus, Chapter 5

Operation-PID A or B

Cycle Time, Output 1A or 1B

Select the time, in seconds, of a complete on/off cycle.

[Ct1A] This prompt appears only if [`In1] (Input Menu) is not set to a process, [CntL] (Global Menu) is not set to [CSCd] and [Pb1A] is set higher than [```0].

If Default

↓ ↓

mechanical [``%0] … [`1)0] … [99(9] min.

relay [Ct1A] [Ct1A] [Ct1A]

outputs

open collector [brSt] [``)1] … [``!0] … [99(9] min.

or solid-state [Ct1A] [Ct1A] [Ct1A] [Ct1A] relay outputs

Proportional Band, Output 2A or 2B

Select the proportional band for PID output 2. If set to [```0] it func- tions as an on/off control, and the switching differential is determined by the [HYS2] value (Output Menu). Decimal precision is determined by the

[`dEC1] or [`dEC2] setting (Input Menu).

[Pb2A] This prompt appears only if [CntL] (Global Menu) is not set to [CSCd] and if [`Ot2] (Output Menu) is set to [``Ht] or [``CL] or if [ALg0] (Global Menu) is set to [dUPL].

If Default

↓ ↓

[``US]

[``°F] [```0]…[``25]…[9999]

[`dFL] [`C_F] [Pb2A] [Pb2A] [Pb2A]

(Calibration Menu) (Global Menu)

[`r†d] [``)0]…[``25]…[99(9]

Input 1 or 2

[Pb2A] [Pb2A] [Pb2A]

(Input Menu)

[``US]

[``°C] [```0] [``14]…[9999]

[`dFL] [`C_F] [Pb2A] [Pb2A] [Pb2A]

(Calibration Menu) (Global Menu)

[`r†d] [``)0]…[``14]…[99(9]

Input 1 or 2

[Pb2A] [Pb2A] [Pb2A]

(Input Menu)

[``SI] [``)0]…[``#0]…[99(9]

% of span

[`dFL] [Pb2A] [Pb2A] [Pb2A]

(Calibration Menu)

[Ct1A] [Ct1b]

[Pb2A] [Pb2B]

NOTE: The PID B Menu appears only on controllers with enhanced software (98_B-_ _ _ _-_ _ _ _).

5.14 WATLOW Series 988 User’s Manual

Operation Menus, Chapter 5

Operation-PID A or B

Reset, Output 2A or 2B

Tune reset to eliminate the offset or droop between the set point and the actual process temperature for PID A output 2. When set to [```0]

reset is disabled.

[rE2A] This prompt appears only if [`dFL] (Calibration Menu) is set to [``US] and [Pb2A] is set higher than [```0].

If Default

↓ ↓

[00)0] … [99(9] repeats/min.

[rE2A] [rE2A]

[`Pdr] [=0)0] %… [``)0] %… [10)0] %

[ALG0] [rE2A] [rE2A] [rE2A]

(Global Menu)

Integral, Output 2A or 2B

Tune integral to eliminate the offset or droop between the set point and the actual process temperature for PID output 2. When set to

[```0] integral is disabled.

[It2A] This prompt appears only if [`dFL] (Calibration Menu) is set to [``SI] and [Pb2A] is set higher than [```0].

Default

↓

[`)00] … [9(99] repeats / min.

[It2A] [It2A]

[rE2A] [rE2b]

[It2A] [It2b]

NOTE: The PID B Menu appears only on controllers with enhanced software (98_B-_ _ _ _-_ _ _ _).

WATLOW Series 988 User’s Manual 5.15

Operation Menus, Chapter 5

Operation-PID A or B

Rate, Output 2

Adjust the rate to eliminate overshoot on startup or after the set point changes. The rate setting will not influence the percent power if the

process temperature is more than twice the proportional band from the set point. When set to [```0] rate is disabled.

[rA2A] This prompt appears only if [`dFL] (Calibration Menu) is set to [``US] and [Pb2A] is set higher than [```0].

Default

↓

[`)00] … [`(99] min.

[rA2A] [rA2A]

Derivative, Output 2A or 2B

Adjust the derivative to eliminate overshoot on startup or after the set point changes. The derivative setting will not influence the percent

power if the process temperature is more than twice the proportional band from the set point. When set to [```0] derivative is disabled.

[dE2A] This prompt appears only if [`dFL] (Calibration Menu) is set to [``SI] and [Pb2A] is set higher than [```0].

Default

↓

[`)00] … [`(99] min.

[dE2A] [dE2A]

[rA2A] [rA2b]

[dE2A] [dE2b]

NOTE: The PID B Menu appears only on controllers with enhanced software (98_B-_ _ _ _-_ _ _ _).

5.16 WATLOW Series 988 User’s Manual

Operation Menus, Chapter 5

Operation-PID A or B

Cycle Time, Output 2A or 2B

Select the time, in seconds, of a complete on/off cycle.

[Ct2A] This prompt appears only if [CntL] (Global Menu) is not set to [CSCd] and [Pb2A] is set higher than [```0].

If Default

↓ ↓

mechanical [``%0] … [`1)0] … [99(9]

relay [Ct2A] [Ct2A] [Ct2A]

outputs

open collector [brSt] [``)1] … [``!0] … [99(9]

or solid-state [Ct2A] [Ct2A] [Ct2A] [Ct2A] relay outputs

Dead Band A or B

Select the width of the zone between the action of the heating output and the cooling output. If you select a positive value the heat and cool

outputs cannot be energized at the same time. If you select a negative value, both outputs can be energized at the same time.

• If a process input is selected the decimal precision will be determined by the [`dEC1] setting (Input Menu).

[db`A] This prompt appears only if [Pb2A] is set higher than [```0] and one output performs heating action and the other performs cooling action.

If Default

↓ ↓

[``°F] [-999] … [```0] … [`999]

[`C_F] [db`A] [db`A] [db`A]

(Global Menu)

[``°C] [-555] … [```0] … [`555]

[`C_F] [db`A] [db`A] [db`A]

(Global Menu)

a process [-999] … [```0] … [`999] units

input is selected [db`A] [db`A] [db`A]

[Ct2A] [Ct2b]

[db`A] [db`b]

NOTE: The PID B Menu appears only on controllers with enhanced software (98_B-_ _ _ _-_ _ _ _).

WATLOW Series 988 User’s Manual 6.1

Factory Menus, Chapter 6

Navigating the Factory Menus

To reach the Factory Menus, begin in the Display Loop and press the Uparrow > and Down-arrow < keys together and hold for three seconds. The [`SEt] prompt will appear in the lower display. Press and hold the Up-arrow > and Down-arrow < keys together again for three seconds until the [Fcty] prompt appears in the lower display. The Factory Menus will not appear if the hardware lockout DIP is set to on. (See Chapter 1 for more information on DIP switch settings.) The three Factory Menus are: Panel Lockout [PLOC]; Diagnostics [diAg]; and Calibration [`CAL]. Upon reaching the Factory Menu prompt [Fcty] use the Up-arrow > or Downarrow < key to select a menu and the Mode key µ to step through a menu.

You will not see every prompt in any of these menus. The unit’s configuration and model number determine which prompts appear. After stepping through each menu, the Series 988 returns to the Factory Menu prompt [Fcty]. Use the Up-arrow > and Down-arrow < keys to select the next menu, or use the Mode key µ to advance through the same menu again. To move backwards through the menu hold down the Mode key µ and press the Up-arrow key >. Use the Up-arrow > or Down-arrow < key to change the prompt setting.

Chapter 6 The Factory Menus

Figure 6.1 Navigating the Factory Menus.

❶ Press the Up-arrow > and Down-arrow < keys together and hold until the [`SEt] prompt appears in

the lower display. Press and hold again until the [Fcty] prompt appears in the lower display.

❷ Use the Up-arrow key > to select one of the Factory Menus.

NOTE: Press the Display key ∂ to return to the Display Loop from any point in any menu.

NOTE: The Factory Menus can only be entered when the setup prompt [`SEt] is displayed.

Panel Diagnostics Calibration

Lockout Menu Menu

Menu p 6.7

p 6.13

p 6.2

NOTE: The Factory Menus will not appear if the hardware lockout DIP is set to on. See Chapter 1 for more information.

PROCESS

L1 L2 L3 L4

DEV

% OUT

SERIES 988

DISPLAY

AUTO

MAN

MODE

PROCESS

L1 L2 L3 L4

DEV

% OUT

SERIES 988

DISPLAY

AUTO

MAN

MODE

[PLOC] [diAg] [`CAL]

[Fcty] [Fcty] [Fcty]

6.2 WATLOW Series 988 User’s Manual

Factory Menus, Chapter 6

Figure 6.2 The Panel Lockout Menu.

Factory-Panel Lockout

❸ Select the Panel Lockout Menu, then press the Mode key µ to step

through the prompts.

❹ Press the Up-arrow key > or the Down-arrow key < to select one of

the prompt values.

*Prompts may not appear, depending on controller configuration.

Reaching the Panel Lockout Menu

TLTL

PROCESS

L1 L2 L3 L4

DEV

DISPLAY

% OUT

AUTO

MAN

MODE

SERIES 988

[FULL] [rEAd] [nonE]

[InPt] [Inpt] [Inpt]

[PLOC]



Factory Prompt

?



Front Panel Lockout

?



System Menu

?



PID A Menu

?



*PID B Menu

?



Input Menu

?



Output Menu

?



Global Menu

?



*Communications Menu

?



Diagnostics Menu

?



Calibration Menu

MODE

[Fcty]

[````]

[`LOC]

[````]

[`SYS]

[````]

[PidA]

[````]

[PidB]

[````]

[Inpt]

[````]

[Otpt]

[````]

[GlbL]

[````]

[COM]

[````]

[Diag]

[````]

[`CAL]



Enter your settings, from the controller’s upper display.

[```0]

[`LOC]

[```1]

[`LOC]

[```2]

[`LOC]

[```3]

[`LOC]



Factory-Panel Lockout

WATLOW Series 988 User’s Manual 6.3

Factory Menus, Chapter 6

Panel Lockout Prompts

When you are in the Factory menus, the Series 988 displays the menu selection ( [PLOC], [diAg] or [`CAL] ) in the upper display and [FctY] in the lower display.

Front Panel Lockout

Sets the Lockout level for the Front Panel. This allows you to disable keys on the front of the controller.

• [```0] enables all keys.

• [```1] disables the Mode key µ.

• [```2] disables the Mode key µ and the Auto/Man key å.

• [```3] disables the Mode key µ and the Auto/Man key å and locks the set point value.

[`LOC] This prompt always appears.

Default

↓

[```0] [```1] [```2] [```3]

[`LOC] [`LOC] [`LOC] [`LOC]

CAUTION: Setting [`LOC] to [```2] or [```3] disables the Auto/Man key

and will force the controller into manual mode if an open sensor occurs. Verify that the controller is operating in the desired mode (auto or manual) before setting the lockout level. Failure to do so could result in damage to equipment and or property.

[`LOC]

6.4 WATLOW Series 988 User’s Manual

Factory Menus, Chapter 6

Factory-Panel Lockout

System Menu

Select the lockout level for the System Menu. Set the System Menu lockout to no lockout [none], read only [read] or full lockout [FULL].

[`LOC] This prompt always appears.

Default

↓

[none] [read] [FULL]

[`SYS] [`SYS] [`SYS]

PID A Menu

Select the lockout level for the PID A Menu. Set the PID A Menu lockout to no lockout [none], read only [read] or full lockout [FULL].

[PidA] This prompt always appears.

Default

↓

[none] [read] [FULL]

[PiDA] [pida] [pida]

PID B Menu

Select the lockout level for the PID B Menu. Set the PID B Menu lockout to no lockout [none], read only [read] or full lockout [FULL].

[PidB] This prompt appears only on controllers with enhanced software

(98_B-_ _ _ _-_ _ _ _) and with [ALgO] (Global Menu) set to [Pid2] or [CntL] (Global Menu) set to [CSCd].

Default

↓

[none] [read] [FULL]

[PiDb] [pidb] [pidb]

[PidA]

[PidB]

[`SYS]

The prompts within the Panel Lockout Menu allow you to lockout an entire menu. You can set the level of lockout to none [nonE], read only [rEAd], or lockout read and write [FULL].

WATLOW Series 988 User’s Manual 6.5

Factory Menus, Chapter 6

Factory-Panel Lockout

Input Menu

Select the lockout level for the Input Menu. Set the Input Menu lockout to no lockout [none], read only [read] or full lockout [FULL].

[InPt] This prompt always appears.

Default

↓

[none] [read] [FULL]

[Inpt] [InPt] [Inpt]

Output Menu

Select the lockout level for the Output Menu. Set the Output Menu lockout to no lockout [none], read only [read] or full lockout [FULL].

[OtPt] This prompt always appears.

Default

↓

[none] [read] [FULL]

[Otpt] [Otpt] [Otpt]

Global Menu

Select the lockout level for the Global Menu. Set the Global Menu lockout to no lockout [none], read only [read] or full lockout [FULL].

[gLbL] This prompt always appears.

Default

↓

[none] [read] [FULL]

[GLBL] [GLBL] [GLBL]

[Inpt]

[GLBL]

[Otpt]

6.6 WATLOW Series 988 User’s Manual

Factory Menus, Chapter 6

Factory-Panel Lockout

Communications Menu

Select the lockout level for the Communications Menu. Set the Communications Menu lockout to no lockout [none], read only [read] or full lockout [FULL].

[COM] This prompt appears only on controllers equipped with

Communications hardware (98_ _ -_ _ _ _-_R_ _ or 98_ _ -_ _ _ _-_S_ _ ).

Default

↓

[none] [read] [FULL]

[COM] [COM] [COM]

Diagnostics Menu

Select the lockout level for the Diagnostics Menu. Set the Diagnostics Menu lockout to no lockout [none], read only [read] or full lockout

[FULL].

[diAg] This prompt always appears.

Default

↓

[none] [read] [FULL]

[Diag] [diag] [diag]

Calibration Menu

Select the lockout level for the Calibration Menu. Set the Calibration Menu lockout to no lockout [none], read only [read] or full lockout

[FULL].

[`CAL] This prompt always appears.

Default

↓

[none] [read] [FULL]

[`CAL] [`CAL] [`CAL]

[diag]

[`CAL]

[COM]

WATLOW Series 988 User’s Manual 6.7

Factory Menus, Chapter 6

Factory-Diagnostics

Reaching the Diagnostics Menu

❷ Use the Up-arrow > key to step from the Panel Lockout Menu [PLOC] to the

Diagnostics Menu [diag].

❶ Press the Up-arrow > and Down-arrow < keys together and hold until the

[`SEt] prompt appears in the lower display. Press and hold again until the [Fcty] prompt appears in the lower display.

❸ Press the Mode key µ to step through the prompts.

❹ Press the Up-arrow key > or the Down- arrow key < to select one of the prompt

values.

In the Diagnostics Menu only the values of [dISP], [tout] and [OPLP] can be

changed.

Panel Diagnostics Calibration

Lockout Menu Menu

Menu p 6.7

p 6.13

p 6.2

Figure 6.7 The Diagnostics Menu.

 [PLOC] [diAg] [`CAL]

 [Fcty] [Fcty] [Fcty]

[``no][`YES]

[dISP] [dISP]

[`OFF][out1] … [out4]

[tout] [tout] [tout]

MODE

[Diag]

[Fcty]

?

[date]

?

[SOft]

?

[Sn--]

?

[AMB]

?

[Acnt]

?

[`gnd]

?

[cnt1]

?

[cnt2]

?

[ity1]

?

[ity2]

?

[Oty1]

?

[Oty2]

?

[Oty3]

?

[Oty4]

?

[dISP]

?

[tout]

[OPLP]

Factory Prompt

Factory Ship Date

Software Revision

Serial Number

Ambient Temperature

Ambient A/D count

Ground A/D count

Input 1 A/D count

Input 2 A/D count

Input 1 Module Type

Input 2 Module Type

Output 1 Module Type

Output 2 Module Type

Output 3 Module Type

Output 4 Module Type

Test Display

Test Outputs

Open Loop

Enter your settings, from the controller's upper display.

6.8 WATLOW Series 988 User’s Manual

Factory Menus, Chapter 6

Factory Ship Date

Shows the date that the final factory control test was performed. The first two digits represent the week as numbered from [01--] to [52--]. The second two digits represent the year [--94], [--95], etc…

[dAtE] This prompt always appears.

Software Revision

Shows the controller’s software revision code when set to

[[``yyeess]]

. This

letter should match the software revision code on the cover of the manual that came with your controller; [```n] and W988-XUMN Rev N00.

[SOFt] This prompt always appears.

Serial Number

Shows the controller’s serial number. The first two letters in the upper display are to indicate that the controller is in serial number mode. The right half of the upper display shows the first two digits of the serial number. The lower display shows the last four digits of the serial number.

[Sn34]

[5678]

This is what the controller with the serial number 0988345678 would display.

[Sn--] This prompt always appears.

Ambient Temperature

Shows the ambient temperature at the Input 1 terminals. The temperature is shown in °F in the form [00)0] regardless of the settings of

[deC1], [deC2], [`dfL] or [`C_F].

[AMb] This prompt always appears.

Factory-Diagnostics

[DAte]

[sOft]

[Sn--]

[AMB]

WATLOW Series 988 User’s Manual 6.9

Factory Menus, Chapter 6

Factory-Diagnostics

[acnt] [`gnd] [cnt1] [cnt2]

Factory Use Only

These prompts are used only at the factory.

[Acnt] [`gnd] [cnt1] [cnt2] These prompts always appear.

Inputs 1 and 2 Module Types

Displays which input module is installed in the controller. Please document this value before contacting the factory for technical assistance.

Input Types

• [none] No input module

• [``tc] Thermocouple only module

• [Curr] Current detect

• [SLid] Slidewire module

• [UOFF] Universal off

• [Urtd] Universal rtd

• [Utch] Universal high-gain thermocouple

• [UtcL] Universal low-gain thermocouple

• [UMu] Universal millivolts

• [UPrc] Universal process

• [`Ei2] Event input 2

[ity1] [ity2] These prompts always appear.

[ity1] [ity2]

6.10 WATLOW Series 988 User’s Manual

Factory Menus, Chapter 6

Factory-Diagnostics

Outputs 1, 2, 3 and 4 Module Types

Display the controller’s output module. Please document this value before contacting the factory for technical assistance.

Output Types

• [none] no output module (A)

• [SSr1] 0.5A solid-state relay (K)

• [SS1S] 0.5A solid-state relay with suppression (B)

• [``dc] switched dc open collector (C)

• [rLyc] form C relay (E)

• [rLcS] form C relay with suppression (D)

• [rLAb] relay A/B (J)

• [Proc] process output (F)

• [Uret] voltage/retransmit (N)

• [Iret] current/retransmit (M)

• [SpLy] power supply (T)

• [`232] EIA/TIA-232 communications (R)

• [`485] EIA/TIA-485 or EIA/TIA-422 communications (S)

• [`232] EIA/TIA-232 or EIA/TIA-485 communications (U)

[Oty1] [Oty2] [Oty3] [Oty4] These prompts always appear.

[Oty1] [Oty2] [Oty3] [Oty4]

Watlow Electric 988, 989, 986m, 987 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Using this Manual

Document Every Step

Notes, Cautions and Warnings

Technical Assistance

We Value Your Feedback

Chapter 1 Hardware Setup

DIP Switch Locations and Functions

Chapter 2 Installation and Wiring

Installing the Series 988

Wiring the Series 988

Input-to-output Isolation

Power Wiring

Sensor Installation Guidelines

Wiring Example

Input 1 Wiring

Input 2 Wiring

Event Input 1 Wiring

Output 1 Wiring

Output 2 Wiring

Output 3 Wiring

Output 4 Wiring

Chapter 3 Front Panel and Display Loop

Keys and Displays

Display Loop

Navigating the Setup Menus

Chapter 4 The Setup Menus

Communications Menu p. 4.44

Navigating the Operation Menus

Chapter 5 The Operation Menus

Navigating the Factory Menus

Chapter 6 The Factory Menus

Diagnostics Menu [diag].