Watlow SD-PID User Manual

ISO 9001

CUSTTOOMMERER

TISFAA

CTIOONN

Series SD

User’s Manual

PID Controller and

PID Profiling Controller

1241 Bundy Boulevard., Winona, Minnesota USA 55987

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

TOTAL

CUS

SSAATISF

3 Year Warranty

ISO 9001

Registered Company

Winona, Minnesota USA

CTI

0600-0041-0000 Rev. F Made in the U.S.A.

April 2006 $15.00

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CAUTION or

WARNING

Ó

Electrical

Shock Hazard

CAUTION or WARNING

Safety Information

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

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

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

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

The safety alert symbol,
CAUTION or WARNING statement.

The electrical hazard symbol,
hazard CAUTION or WARNING safety statement.

ç

(an exclamation point in a triangle) precedes a general

Ó

(a lightning bolt in a triangle) precedes an electric shock

Technical Assistance

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

• Complete model number • All configuration information

• User’s Manual • Factory Page

Warranty

The Series SD is manufactured by ISO 9001-registered processes and is backed by a three­year warranty.

Return Material Authorization (RMA)

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

• Ship to address • Bill to address

• Contact name • Phone number

• Method of return shipment • Your P.O. number

• Detailed description of the problem • Any special instructions

• Name and phone number of person returning the product.

2. Prior approval and an RMA number from the Customer Service Department is required
when returning any product for credit, repair or evaluation. Make sure the RMA number is
on the outside of the carton and on all paperwork returned. Ship on a Freight Prepaid basis.

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

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

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

6. If the unit is unrepairable, you will receive a letter of explanation. and be given the
option to have the unit returned to you at your expense or to have us scrap the unit.

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

The Series SD User’s Manual is copyrighted by Watlow Winona, Inc., © February
all rights reserved.

2006 with

TC

Table of Contents

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

Chapter 2: Install and Wire ..............................................................4

Dimensions ..................................................................................4

Installation ....................................................................................6

Wiring the Series SD .................................................................11

Chapter 3: Keys and Displays .......................................................20

Home Page Overview ................................................................21

Operations Page Overview .......................................................22

Setup Page Overview ................................................................23

Programming Page Overview ....................................................24

Factory Page Overview .............................................................24

Chapter 4: Home Page ...................................................................25

Chapter 5: Setup Page ...................................................................26

Chapter 6: Operations Parameters Table ....................................36

Chapter 7: Operations Parameters Table for TRU-TUNE+™ .....40

Chapter 8: Programming Page .....................................................43

Chapter 9: Programming Page for TRU-TUNE+™ .....................45

Chapter 10: Profiling Page ............................................................47

Chapter 11: Factory Page ..............................................................59

Chapter 12: Features ......................................................................61

Saving and Restoring User Settings ..........................................62

Saving and Restoring User Profiles ...........................................62

Operations Page ........................................................................62

Tuning the PID Parameters .......................................................63

Inputs .........................................................................................64

Control Methods .........................................................................66

Alarms ........................................................................................70

Retransmit ..................................................................................71

Communications ........................................................................71

Appendix .........................................................................................77

Specifications .............................................................................77

Ordering Information and Model Numbers ................................79

Prompt Index ..............................................................................80

Index ..........................................................................................80

Watlow Series SD • 1 • Table of Contents

1

Chapter 1: Overview

The Watlow Series SD family of PID, microproces­sor-based temperature controllers is available in 1/32,
1/16, 1/8 and 1/4 DIN panel mount sizes.* The product
family includes a static set point PID control version,
a PID profiling (ramp and soak) version and an FM
approved limit version. All models have a single, uni­versal input that accepts various thermocouples, RTDs
(resistive temperature devices) or process inputs. (See
the Specifications in the Appendix for further details).

The Series SD PID controllers offer up to two out­puts on the 1/32 DIN, and up to three outputs on all
others. Outputs can be configured as heat, cool, alarm
or off (deactivated). The control outputs can be inde­pendently configured for PID or On-Off control. PID
settings include proportional band, reset (or integral)
and rate (or derivative).

The Series SD PID profiling (ramp and soak) con­trollers are available as a factory order option for any
of the Series SD DIN sizes. The profiling feature allows
the user to program up to 4 profiles of 10 steps each.
The files can be linked to support a single file of up
to 34 unique steps. The Series SD profiling units can
also operate as a closed loop static set point controller
or manual mode (open loop, percent power) operation
capabilities. Outputs can be configured as heat, cool,
alarm, event or off (deactivated).

Standard Series SD features include an IP65/NE­MA 4X front panel rating; CE compliance, UL, CUL,
CSA and NSF agency approvals; dual, four-digit dis­plays in red or green**; autotuning for heat and cool
outputs; ramp to set point, to gradually warm up your
thermal system; and automatic/manual capability with
bumpless transfer. A low-voltage model is also avail­able.

Advanced features include Modbus, EIA-485 serial
communications to interface with PC software ap­plications; INFOSENSE™ technology that provides
low-cost, high-accuracy thermal sensing; and infrared
remote communication for easy-to-use controller setup
and monitoring.***

Other operator-friendly features include LED indi­cators to aid in monitoring and setting up the control­ler, as well as a calibration offset at the front panel.
The Watlow Series SD family automatically stores all
information in non-volatile memory and provides an
additional back-up for user-selected settings.

For more information on these and all other prod­uct features, refer to the Features chapter and the Ap­pendix.

* Also available in an FM-approved limit version.

** The 1/32 DIN controller comes only with a red

left and green right display.

*** Infrared option not available on 1/32 DIN.

Output 1

SD

SD

SD

SD

231

%

Control, Alarm, Retransmit or Event***

Output 2

Control Input

Control, Alarm, Event***

or Communications

Output 3

*

Control, Alarm, Retransmit or Event***

Infrared
Configure**

Infrared
Monitor**

*1/32 DIN cannot have an Output 3.
**Infrared option is not available on 1/32 DIN.
***Event outputs available on profiling version only.

Figure 2 — Series SD inputs and outputs.

Watlow Series SD • 2 • Chapter 1 Overview

Features and Benefits

INFOSENSE™ Technology

• Improves sensor accuracy by a minimum of 50%.

User Definable Menu System

• Simplifies operator interface

User Definable Default Settings

• Restores to user defined controller settings

WATVIEW™ Software

• Operation, configuration and data logging with a
standard Windows® PC.

Infrared Communications

• Facilitates controller setup, operation and moni­toring.

Up to three outputs (1/32 DIN two outputs only)

• Application versatility.

• Configuration flexibility.

Dual Displays on all models

• Better monitoring of process changes.

Ramp to Set Point

• Controls the rate of temperature changes.

Profiling (ramp and soak) Capability

• 4 Profiles with 10 steps each

• Profiles can be linked together

• wait-for Process

• Guaranteed Soak

• Programmable Event Outputs

• Customer/OEM Profile save/restore

Available in an FM-approved limit version.

How to use the Series SD controller

Before you use your Series SD controller, it must be

installed and configured correctly. The setup steps you

need to perform will depend on how you will use
it.

If you purchased the controller to design into
your products:

You will need to do the first three steps and maybe
some of the fourth step. Some wiring, such as the final
wiring of a communications connection or an alarm out­put for signaling an external device, might be left to the
end user. In highly specialized applications with little
variation in operation and heat load, the OEM might
configure almost all the parameters.

If you purchased the controller to design and in­stall into new equipment for your own use or to
retrofit into existing equipment:

You will need to complete all four steps.

If you purchased the controller installed in equip­ment designed around it:

You will probably only need to do the fourth step. In
some instances, you may need to wire it for serial com­munications and/or an alarm output. Some serial com­munications parameters on the Setup Page may need to
be changed.

Step 1: Mount and install the controller.

The Series SD controller is designed to be panel
mounted in a standard DIN opening. The Series SD is
available in 1/32 DIN, 1/16 DIN, 1/8 DIN-horizontal,
1/8 DIN-vertical and 1/4 DIN sizes. Cut the correct size
hole into the panel and mount the controller, using its
mounting brackets. See the Install and Wire chapter
for details on installation and mounting.

If you retrofit the Series SD controller into an exist­ing application, you may need to modify an existing
opening, either by cutting it larger for a larger control­ler or using a Watlow adapter plate to adapt it to a
smaller controller.

Step 2: Wire the controller.

The controller will need to have its power, input
and output wiring installed. The wiring depends on the
specific model number of the Series SD controller. The
dimension illustrations in the Install and Wire chapter
show the location of the model number on each DIN
size. Use the model number to determine which wiring
diagrams to follow for your controller. See the Install
and Wire chapter for wiring details.

Step 3: Configure the Setup Page.

Setup Page parameters tell the controller what in­put and output devices are wired to the controller and
how the controller should function. Without the proper
Setup Page settings, the controller will not operate or
could operate erratically. Since these settings require
detailed knowledge on the wiring and operation of the
equipment, the OEM or the designer normally pro­grams these parameters. Some settings, such as the
baud rate or controller address, are Setup Page param­eters, but would probably be set by the end user.

These settings should be recorded for future refer­ence. The settings can also be stored using the [Usr;S]
parameter, on the Factory Page. For saving and restoring
parameters, see the Features chapter. For details on con­figuring the Setup Page, see the Setup Page chapter.

Step 4: Configure the Operations Page.

The Operations Page contains the parameters that
the equipment operator may need to set or change from
time to time. This includes calibration offset, autotune,
PID parameters and alarm set points. In some cases the
OEM manufacturer may set most of these parameters
because the equipment operates with little variation. In
equipment where demands could vary significantly, the
OEM may leave parameter adjustments to the end user.

The Operations Page on the Series SD controller is
customizable so that only the parameters that the opera­tor may need to use will appear in the display. Settings
that won’t need to be adjusted can be hidden from the
operator, using the Programming Page. For more details
on the Programming Page, see the Features chapter.
For details on configuring parameters in the Opera­tions Page, see the Operations Parameters Tables. Once
you have verified the controller is operating properly, be
sure to document all of your parameter settings. Each

parameter table has a settings column for you to
write in your values.

Watlow Series SD • 3 • Chapter 1 Overview

2

Chapter 2: Install and Wire

Dimensions

1/32 DIN Series SD Controller Dimensions

Front Top

30.7 mm
(1.21 in)

53.6 mm
(2.11 in)

12.7 mm

minimum

(0.50 in)

45.0 to 45.6 mm
(1.77 to 1.79 in)

Panel Cutout

Panel Thickness

1.5 to 9.5 mm

(0.060 to 0.375 in)

12.7 mm
(0.50 in)
minimum

22.2 to 22.5 mm
(0.87 to 0.89 in)

Model Number

Ridges

Tabs with Teeth

Customer Front Panel

0.48 mm (0.019 in) maximum gap between
controller front and customer front panel

Contact your local Greenlee supplier for the appropriate punch kit
and cutout tools required for rapid mounting.

1/16 DIN Series SD Controller Dimensions

Front

Side Back

97.8 mm
(3.85 in)

8.6 mm
(0.34 in)

Back

47.2 mm
(1.86 in)

29.3 mm
(1.15 in)

52.1 mm
(2.05 in)

45.0 to 45.5 mm
(1.77 to 1.79 in)

97.8 mm
(3.85 in)

9.3 mm
(0.37 in)

50.1 mm
(1.97 in)

Panel Cutout

52.1 mm

(2.05 in)

7.9 mm
(0.31 in)
minimum

Panel Thickness

1.5 to 9.5 mm

(0.060 to 0.375 in)

13.7 mm
(0.54 in)
minimum

45.0 to 45.5 mm
(1.77 to 1.79 in)

Model Number

0.6 mm (0.025 in) maximum gap between
controller front and customer front panel

Customer Front Panel

59.2 mm

(2.33 in)

Contact your local Greenlee supplier for the appropriate punch kit
and cutout tools required for rapid mounting.

Watlow Series SD • 4 • Table of ContentsWatlow Series SD • 4 • Chapter 2 Install and Wire

RESET

1/8 DIN Series SD Controller Dimensions

Front (vertical)

Front (horizontal)

99.8 mm
(3.93 in)

52.8 mm
(2.08 in)

Back (horizontal)

97.8 mm
(3.85 in)

Model Number

7.9 mm
(0.31 in)

minimum

60.9 mm
(2.40 in)

92.0 to 93.0 mm
(3.62 to 3.65 in)

Panel Cutout

Panel Thickness

1.52 to 9.53 mm

(0.060 to 0.375 in)

31.8 mm
(1.25 in)

minimum

Back (vertical)

Model Number

45.0 to 45.6 mm
(1.77 to 1.79 in)

97.8 mm
(3.85 in)

99.8 mm
(3.93 in)

Side (horizontal)

52.8 mm
(2.08 in)

RESET

31.8 mm
(1.25 in)
minimum

Dimensions for Horizontal or Vertical versions

7.9 mm
(0.31 in)

minimum

Panel Cutout

Panel Thickness

1.52 to 9.53 mm

(0.060 to 0.375 in)

45.0 to 45.6 mm
(1.77 to 1.79 in)

97.8 mm
(3.85 in)

92.0 to 93.0 mm
(3.62 to 3.65 in)

10.3 mm
(0.40 in)

60.9 mm
(2.40 in)

Contact your local Greenlee supplier for the appropriate punch kit
and cutout tools required for rapid mounting.

1/4 DIN Series SD Controller Dimensions

Front

92.0 to 93.0 mm
(3.62 to 3.65 in)

Panel Cutout

Panel Thickness

1.52 to 9.53 mm

(0.060 to 0.375 in)

17.6 mm
(0.68 in)
minimum

16.0 mm
(0.63 in)

minimum

92.0 to 93.0 mm
(3.62 to 3.65 in)

99.8 mm
(3.93 in)

99.8 mm
(3.93 in)

Side

Back

Model
Number

Customer Front Panel

0.64 mm (0.025 in) maximum gap between
controller front and customer front panel

101.1 mm
(3.98 in)

Customer Front Panel

0.5 mm (0.020 in) maximum gap between
controller front and customer front panel

108.3 mm
(4.26 in)

9.6 mm
(0.38 in)

108.8 mm
(4.28 in)

Contact your local Greenlee supplier for the appropriate punch kit
and cutout tools required for rapid mounting.

Watlow Series SD • 5 • Table of ContentsWatlow Series SD • 5 • Chapter 2 Install and Wire

ç

Caution: Follow the instal­lation procedure exactly to
guarantee a proper IP65/
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.

Removing the Screw Clamp Connectors

To prevent component damage when
removing the screw clamp connector,
please follow these steps:

1. Insert a screwdriver in the top of
the spring clamp and lift it up as
shown.

2. Pull out the sensor connector (pins
8 to 11).

3. Lift up the screw clamp connector.

Note: These directions apply to all Series SD

Installation

Installing the 1/32 DIN Series SD Controller

1BOFM

Installing and mounting

requires access to the

back of the panel.

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1. Make the panel cutout using the mounting template dimensions in this chapter.

2. Check that the rubber gasket lies in its slot at the back of the bezel. Insert

the controller into the panel cutout.

3. While pressing the bezel firmly against the panel, slide the mounting

bracket over the back of the controller.

4. If the installation does not require an IP65/NEMA 4X seal, slide the brack-

et up to the back of the panel enough to eliminate the spacing between the
gasket and the panel.

For an IP65/NEMA 4X seal, use your thumb to lock the tabs into place

while pressing the controller from side to side. Don’t be afraid to apply
enough pressure to properly install the controller. If you can move the con­troller back and forth in the cutout, you do not have a proper seal. The tabs
on each side of the bracket have teeth that latch into the ridges.

Each tooth is staggered at a different depth (from the front) so only one of

the tabs on each side is ever locked into the ridges at any time. Either the
two middle tabs or the two tabs diagonal from each other will be engaged.

5. If the matching tabs are not engaged, you do not have an IP65/NEMA 4X

seal. The space between the bezel and panel must be 0 to 0.48 mm (0 to

0.019 in) maximum.

Tools required:

Putty knife or equivalent

Removing the 1/32 DIN Series SD Controller

1. Remove all the wiring connectors from the back of the controller.

2. Slide a thin, wide tool (putty knife) under all three mounting tabs, on the

top and then the bottom, while pushing forward on the back of the case. Be
ready to support the controller as it slides out of the panel cutout.

Watlow Series SD • 6 • Chapter 2 Install and Wire

ç

Installing the 1/16 DIN Series SD Controller

Caution: Follow the instal­lation procedure exactly to
guarantee a proper IP65/
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.

Note: Be careful not to
over-tighten the screws.
This may cause the mount­ing bracket to fail. If the
front bezel is touching the
front panel, the mounting
bracket is too tight.

Installing and mounting

requires access to the

back of the panel.

Tools required:

one #2 Phillips screwdriver.

Panel

Hook

Locating Hole

Slot

Gasket

Bezel

Arrows indicate the
direction of pull to
remove the
connectors.

Retention
Collar

Case

Mounting
Bracket

1. Make the panel cutout using the mounting template dimensions in this

chapter.

2. Check that the rubber gasket lies in its slot at the back of the bezel. Insert

the controller into the panel cutout. Slide the retention collar over the con­troller, with the locating holes on the top and bottom, facing the back of the
controller.

3. Slide the mounting bracket over the back of the controller with the screw

tips pointed toward the panel, aligning with the locating holes in the reten­tion collar. Push it gently but firmly over the controller until the hooks snap
into the slots at the front.

4. If the installation does not require an IP65/NEMA 4X seal, tighten the two

screws with the Phillips screwdriver just enough to eliminate the spacing
between the rubber gasket and the panel.

For an IP65/NEMA 4X seal, tighten the two screws until the gap between

the bezel and panel surface is 0.6 mm (0.024 in) maximum. Make sure that
you cannot move the controller back and forth in the cutout. If you can, you
do not have a proper seal. Do not over-tighten. Over-tightening could dam­age the mounting bracket.

Removing the 1/16 DIN Series SD Controller

1. Remove all the wiring connectors from the back of the controller. While

Tools required:

one #2 Phillips screwdriver.

Watlow Series SD • 7 • Chapter 2 Install and Wire

supporting the controller with one hand, use the Phillips screwdriver to
unscrew the two screws on the mounting bracket until the tips are flush or
past the end of the hooks.

2. Squeeze the two screws together on the mounting bracket to release the

hooks from the slots and slide it off the controller. Remove the retention col­lar and push the controller out of the panel cutout. Be ready to support the
controller as it comes through the front panel.

ç

Installing the 1/8 DIN Series SD Controller

Caution: Follow the instal­lation procedure exactly to
guarantee a proper IP65/
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.

Note: Be careful not to
over-tighten the screws.
This may cause the mount­ing bracket to fail. If the
front bezel is touching the
front panel, the mounting
bracket is too tight.

Installing and mounting

requires access to the

back of the panel.

Tools required:

one #2 Phillips screwdriver.

Retention
Collar

Mounting
Bracket

Arrows indicate the
direction of pull to
remove the
connectors.

Panel

Case

Gasket

Bezel

Locating Hole

Slot

Hook

Release
Tab

1. Make the panel cutout using the mounting template dimensions in this

chapter.

2. Check that the rubber gasket lies in its slot at the back of the bezel. Insert

the controller into the panel cutout. Slide the retention collar over the con­troller, with the locating holes facing the back of the controller.

3. Slide the mounting bracket over the back of the controller with the screw

tips pointed toward the panel, aligning with the locating holes in the reten­tion collar. Push it gently but firmly over the controller until the hooks snap
into the slots at the front.

4. If the installation does not require an IP65/NEMA 4X seal, tighten the four

screws with the Phillips screwdriver just enough to eliminate the spacing
between the rubber gasket and the panel.

For an IP65/NEMA 4X seal, tighten the four screws until the gap between

the bezel and panel surface is 0.5 mm (0.020 in) maximum. Make sure that
you cannot move the controller back and forth in the cutout. If you can, you
do not have a proper seal. Do not over-tighten. Over-tightening could dam­age the mounting bracket.

Tools required:

one #2 Phillips screwdriver.

Removing the 1/8 DIN Series SD Controller

1. Remove all the wiring connectors from the back of the controller. Using the

Phillips screwdriver, unscrew the four screws on the mounting bracket until
they disengage from the retention collar.

2. Squeeze the release tabs on the long sides of the mounting bracket and

slide the mounting bracket off the back of the controller. Remove the reten­tion collar and push the controller out of the panel cutout. Be ready to sup­port the controller as it comes through the front panel.

Watlow Series SD • 8 • Chapter 2 Install and Wire

ç

Installing the 1/4 DIN Series SD Controller

Caution: Follow the instal­lation procedure exactly to
guarantee a proper IP65/
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.

Note: Be careful not to
over-tighten the screws.
This may cause the mount­ing bracket to fail. If the
front bezel is touching the
front panel, the mounting
bracket is too tight.

Installing and mounting

requires access to the

back of the panel.

Tools required:

one #2 Phillips screwdriver.

Retention

Collar
Mounting
Bracket

Arrows indicate the
direction of pull to
remove the
connectors.

Panel

Hook

Slot

Locating Hole

Gasket

Bezel

Case

1. Make the panel cutout using the mounting template dimensions in this
chapter.

2. Check that the rubber gasket lies in its slot at the back of the bezel. Insert
the controller into the panel cutout. Slide the retention collar over the con­troller, with the locating holes facing the back of the controller.

3. Slide the mounting bracket over the back of the controller with the screw
tips pointed toward the panel, aligning with the locating holes in the reten­tion collar. Push it gently but firmly over the controller until the hooks snap
into the slots at the front.

4. If the installation does not require an IP65/NEMA 4X seal, tighten the four
screws with the Phillips screwdriver just enough to eliminate the spacing
between the rubber gasket and the panel.

For an IP65/NEMA 4X seal, tighten the four screws until the gap between

the bezel and panel surface is 0.5 mm (0.020 in) maximum. Make sure that
you cannot move the controller back and forth in the cutout. If you can, you
do not have a proper seal. Do not over-tighten. Over-tightening could dam­age the mounting bracket.

Tools required:

• one #2 Phillips screwdriver

• one flat-head screwdriver

Removing the 1/4 DIN Series SD Controller

1. Remove all the wiring connectors from the back of the controller. Using the
Phillips screwdriver, unscrew the four screws on the mounting bracket (two on
top, two on bottom) until they disengage from the retention collar.

2. Slide the tip of a flat screwdriver between the controller and the center top
side of the mounting bracket. Rotate the screwdriver 90 degrees, stretching
the bracket away from the controller so the hooks on the bracket disengage
from the slots. Hold the bracket and press the controller forward slightly to
prevent the disengaged hooks from snapping back into the slots.

3. Repeat this operation to disengage the hooks on the bottom side of the mount­ing bracket.

4. Press with one or two fingers on the lower half of the back of the unit so that
the controller slides forward toward the panel. Hold the bracket steady; do
not pull back. Be ready to support the controller as it comes through the front
panel.

Watlow Series SD • 9 • Chapter 2 Install and Wire

Series SD Family — Back Views in Scale

NOTE: The SD model number determines which diagram applies to your unit.

2

3

1

4

8

6

7

10

9

5

Figure 10a — 1/32 DIN with

11

a Universal Process Output in­stalled for output 1
(S D 3 _ - _ F _ _ - _ _ _ _).

234

1

56

8

9

10 11

Figure 10b — 1/32 DIN with
other than a Universal Process
Output installed for output 1

(S D 3 _ - _ (C,K or J) _ _ - _ _ _ _).

1
2
3
4

5
6
7
8
9
10
11

12
13 14

Figure 10e — 1/8 DIN Horizontal with a
Universal Process Output installed for output 1
(S D 9 _ - _ F _ _ - _ _ _ _).

8
9
10 11

1
2
3
4
56

12
13
14

Figure 10f — 1/8 DIN Horizontal with other
than a Universal Process Output installed for
output 1 (S D 9 _ - _ (C,K or J) _ _ - _ _ _ _).

1
2
3
4

5
6
7
8
9
10
11

12
13 14

Figure 10c — 1/16 DIN
with a Universal Process
Output installed for output 1
(S D 6 _ - _ F _ _ - _ _ _ _).

1
2
3
4

5
6
7
8
9
10
11

12
13 14

Figure 10g — 1/8 DIN
Vertical with a Universal
Process Output installed for
output 1
(S D 8 _ - _ F _ _ - _ _ _ _).

8
9
10 11

1
2
3
4
56

12
13
14

Figure 10d — 1/16 DIN with other
than a Universal Process Output in­stalled for output 1
(S D 6 _ - _ (C,K or J) _ _ - _ _ _ _).

8
9
10 11

1
2
3
4
56

12
13
14

Figure 10h — 1/8 DIN Vertical
with other than a Universal Process
Output installed for output 1
(S D 8 _ - _ (C,K or J) _ _ - _ _ _).

NOTE:
Terminals 12, 13 and
14 are not installed on
controllers without an
output 3 (SD _ _-_ _ _ A­_ _ _ _).

1
2
3
4

5
6
7
8
9
10
11

12
13 14

Figure 10i — 1/4 DIN with a Universal
Process Output installed for output 1
(S D 4 _ - _ F _ _ - _ _ _ _).

8
9
10 11

1
2
3
4
56

12
13
14

Figure 10j — 1/4 DIN with other than a Universal
Process Output installed for output 1
(S D 4 _ - _ (C,K or J) _ _ - _ _ _ _).

Watlow Series SD • 10 • Table of ContentsWatlow Series SD • 10 • Chapter 2 Install and Wire

Ó

Wiring the Series SD

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

Note: To prevent ground loops,
isolation needs to be main­tained from input to output
when using switched DC or
analog process outputs.

Isolation Blocks

There are no electrical connections between these blocks.

Sensor Input
Switched DC Outputs
Analog Process Outputs

Relay outputs (mechanical and solid-state) provide isolation through their
relay contacts. Each relay output is isolated from the blocks above and is
isolated from other relay outputs.

The model number for each output option appears with its wiring dia­gram. Check the label on the controller and compare your model number to
those shown here and to the model number breakdown in the Appendix of
this manual.

The connectors on the back of the Series SD are different for different
model numbers. Where two different combinations of connectors may appear,
we show both in the diagrams.

All outputs, including normally open and normally closed contacts, are ref­erenced to a de-energized state (the controller has power removed).

All wiring and fusing must conform to the National Electric Code and to
any locally applicable codes as well.

Power Supply Input EIA/TIA-485 Commu-

nications Input

Ó

WARNING: If high voltage is
applied to a low-voltage con­troller, irreversible damage
will occur.

Figure 11a — High Voltage AC Power Wiring

SD_ _ - H _ _ _ - _ _ _ _ High

• Nominal voltage: 100 to 240VÅ (ac)

L1

L2

1
2

1
2
3

Figure 11b — Low Voltage AC Power Wiring

SD_ _ - L _ _ _ - _ _ _ _ Low

• Nominal voltage: 24‡ (ac/dc)

• Class 2 power source required for agency compliance

+

1
2

-

1

2
3

Watlow Series SD • 11 • Chapter 2 Install and Wire

4

ç

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

Figure 12a — Thermocouple Input

(all model numbers)
Thermocouples are polarity sensitive. The negative lead (usually red) must be

connected to terminal 11.

• Input impedance: >20 M



4

5
6
7
8
9

10

11

+10

-11

6

8
9

10 11

10

11

Figure 12b — RTD Input (100 Ω DIN curve 0.00385 Ω/Ω/°C)

(all model numbers)

Spring clamp wiring connector
note:
To insert the wire, push the
wire into the desired connec­tion number, and it should
automatically lock into place.
To remove the wire, press and
hold the orange release tab
with a small screwdriver. Pull
the wire out of the connection.
Solid or tinned wire recom­mended.

Note: To prevent ground
loops, isolation needs to be
maintained from input to out­put when using switched DC
or analog process outputs.

ç

WARNING: Process input
may not have sensor break
protection. Outputs can
remain full on. Check your
input settings.

Terminals 8 and 11 must be shorted for a two-wire RTD. For three-wire RTDs,
the S1 lead (usually white) must be connected to terminal 10.

• Nominal excitation current: 390µA

4

5
6
7
8
9

10
11

S2 8
S1 10

11

6

8
9

10 11

2-wire RTD

8

10

11

6

S2 8
S1 10

S3 11

8
9

10 11

3-wire RTD

Figure 12c — 0 to 10VÎ (dc) Process Input

(all model numbers)

• Input impedance 20 k, dc only.

4

5
6
7
8
9

10
11

+

-

9
11

6

8
9

10 11

9

11

Figure 12d — 0 to 50mVÎ (dc) Process Input

(all model numbers)

• Input impedance >20 M, dc only.

5

6

8

+

10

-

11

9
10 11

10

11

Watlow Series SD • 12 • Chapter 2 Install and Wire

6
7
8
9

10
11

ç

WARNING: Process input
may not have sensor break
protection. Outputs can
remain full on. Check your
input settings.

ç

Figure 13a — 0 to 20 mA Process Input

(all model numbers)

• Input impedance 100 , dc only.

• Controller does not supply power for the current loop.

4

5

6

+

8

11

-

8
9

10 11

8

11

6
7
8
9

10
11

+

Power
Supply

-

Transmitter

Two Wire Transmitter Wiring

5
6
7

+

8

11

-

+

8
9

10
11

-

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

Quencharc Note:
Switching pilot duty inductive
loads (relay coils, solenoids,
etc.) with the mechanical re­lay or solid-state relay output
options requires use of 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.

Spring clamp wiring connector
note:
To insert the wire, push the
wire into the desired connec­tion number, and it should
automatically lock into place.
To remove the wire, press and
hold the orange release tab
with a small screwdriver. Pull
the wire out of the connection.
Solid or tinned wire recom­mended.

Note: To prevent ground loops,
isolation needs to be main­tained from input to output
when using switched DC or
analog process outputs.

Figure 13b — Output 1 Mechanical Relay

SD_ _ - _ J _ _ - _ _ _ _

• Form A contact

• 2 A, resistive

• 125 VA pilot duty, 120/240VÅ (ac), inductive

• See Quencharc note.

• 240VÅ (ac) maximum.

• 30VÎ (dc) maximum.

• For use with ac or dc.

• Minimum load current 10 mA

• Output does not supply power.

Mechanical Relay

5

COM.

N.O.

6

Internal Circuitry

common 5

normally open 6

4
56

Figure 13c — Output 1 Solid-state Relay

SD_ _ - _ K _ _ - _ _ _ _

• Form A contact

• 0.5 A maximum, resistive

• 20 VA pilot duty, 120/240VÅ (ac), inductive

• See Quencharc note.

• 24 to 240VÅ (ac).

• Minimum load current 10 mA

• Maximum leakage current 100 µA

• Not for use with direct current (dc).

• Output does not supply power.

Solid-state Relay

Solid-state Switch

COM.

5

N.O.

6

Internal Circuitry

common 5

normally open 6

4
56

Watlow Series SD • 13 • Chapter 2 Install and Wire

ç

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

Figure 14a — Output 1 Switched DC

SD_ _ - _ C _ _ - _ _ _ _

• Supply current 30 mAÎ (dc) maximum.

• Supply voltage 6 to 12VÎ (dc).

• Not recommended for switching mechanical relays.

• Output supplies power.

Switched DC

6 to 12VÎ (dc)

5

dc+

dc-

6

Internal Circuitry

dc+
dc-

+

4

5

56

Load

-

6

Quencharc Note:
Switching pilot duty inductive
loads (relay coils, solenoids, etc.)
with the mechanical relay or solid­state relay output options requires
use of 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.

Spring clamp wiring connector
note:
To insert the wire, push the wire
into the desired connection num­ber, and it should automatically
lock into place. To remove the
wire, press and hold the orange
release tab with a small screw­driver. Pull the wire out of the
connection. Solid or tinned wire
recommended.

Note: To prevent ground loops,
isolation needs to be maintained
from input to output when using
switched DC or analog process
outputs.

Figure 14b — Output 1 Process

SD_ _ - _ F _ _ - _ _ _ _

• Analog output is scalable between 0 to 10VÎ (dc) or 0 to 20 mAÎ (dc).

• Load capability: voltage 1 k minimum; current 800 Ω maximum.

• Output supplies power.

• Cannot use voltage and current output at the same time.

4

amps+ 5

volts+ 6

com- 7

5
6
7
8

Figure 14c — Output 2 Mechanical Relay

SD_ _ - _ _ J _ - _ _ _ _

• Form A contact

• 2 A, resistive

• 125 VA pilot duty, 120/240VÅ (ac), inductive

• See Quencharc note.

• 240VÅ (ac) maximum.

• 30VÎ (dc) maximum.

• For use with ac or dc.

• Minimum load current 10 mA

• Output does not supply power.

Mechanical Relay

3

COM.

common

normally open

3

4

2
3
4

N.O.

4

Internal Circuitry

Watlow Series SD • 14 • Chapter 2 Install and Wire

ç

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

Quencharc Note:
Switching pilot duty inductive
loads (relay coils, solenoids, etc.)
with the mechanical relay or solid­state relay output options requires
use of 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.

Note: To prevent ground loops,
isolation needs to be maintained
from input to output when using
switched DC or analog process
outputs.

Figure 15a — Output 2 Solid-state Relay

SD_ _ - _ _ K _ - _ _ _ _

• Form A contact

• 0.5 A maximum, resistive

• 20 VA pilot duty, 120/240VÅ (ac), inductive

• See Quencharc note.

• 24 to 240VÅ (ac).

• Minimum load current 10 mA

• Maximum leakage current 100 µA

• Not for use with direct current (dc).

• Output does not supply power.

Solid-state Relay

Solid-state Switch

3

COM.

4

N.O.

Internal Circuitry

common

normally open

3

4

2

3

4

Figure 15b — Output 2 Switched DC

SD_ _ - _ _ C _ - _ _ _ _

• Maximum supply current 30 mAÎ (dc).

• Supply voltage 6 to 12VÎ (dc).

• Not recommended for switching mechanical relays.

• Output supplies power.

Switched DC

6 to 12VÎ (dc)

3

dc+

dc-

4

Internal Circuitry

dc+ 3

dc- 4

2
3
4

+

Load

-

Figure 15c — Output 2 EIA/TIA-485

SD_ _ - _ _ U _ - _ _ _ _

• Isolated [50VÎ (dc)]

• Half duplex

• For more communications information, see the Features chapter.

2

T+/R+ 3

T-/R- 4

Watlow Series SD • 15 • Chapter 2 Install and Wire

3
4

ç

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

Quencharc Note:
Switching pilot duty inductive
loads (relay coils, solenoids,
etc.) with the mechanical relay
or solid-state relay output op­tions requires use of 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.

Note: To prevent ground loops,
isolation needs to be main­tained from input to output
when using switched DC or
analog process outputs.

Figure 16a — Output 3 Mechanical Relay

SD_ _ - _ _ _ E - _ _ _ _

• Form A contact

• 5 A, resistive

• 125 VA pilot duty, 120/240VÅ (ac), inductive

• See Quencharc note.

• 240VÅ (ac) maximum.

• 30VÎ (dc) maximum.

• For use with ac or dc.

• Minimum load current 10 mA

• Output does not supply power.

Mechanical Relay

12

12 common

13

13 normally open

14

14 normally closed

Internal Circuitry

Figure 16b — Output 3 Solid-state Relay

SD_ _ - _ _ _ K - _ _ _ _

• Form A contact

• 0.5 A maximum, resistive

• 20 VA pilot duty, 120/240VÅ (ac), inductive

• See Quencharc note.

• 24 to 240VÅ (ac).

• Minimum load current 10 mA

• Maximum leakage current 100 µA

• Not for use with direct current (dc).

• Output does not supply power.

Solid-state Relay

12

12 common

13

13 normally open

14

Solid-state Switch

Internal Circuitry

COM.

N.O.

N.C.

COM.

N.O.

12

13

14

12

13

Figure 16c — Output 3 Switched DC

SD_ _ - _ _ _ C - _ _ _ _

• Maximum supply current 30 mAÎ (dc).

• Supply voltage 6 to 12VÎ (dc).

• Not for switching mechanical relays.

• Output supplies power.

Switched DC

6 to 12VÎ (dc)

dc+

12

12 dc +

13

13 dc -

14

14 common

Internal Circuitry

dc-

12

13

Watlow Series SD • 16 • Chapter 2 Install and Wire

+

-

Load

ç

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

Figure 17a — Output 3 Open Collector

SD_ _ - _ _ _ C - _ _ _ _

• Maximum current sink 250 mAÎ (dc).

• Maximum supply voltage 42VÎ (dc).

• For inductive loads, see Quencharc note.

• Output does not supply power.

Open Collector

42VÎ (dc) maximum

12

12 dc+

13

13 open collector

14

14 common

Internal Circuitry

dc+

dc-

COM.

Class 2 power source
required for agency
compliance.

12

13

14

-

+

Load

Power

Supply

+

-

Quencharc Note:
Switching pilot duty inductive
loads (relay coils, solenoids,
etc.) with the mechanical re­lay or solid-state relay output
options requires use of 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.

Note: To prevent ground
loops, isolation needs to be
maintained from input to out­put when using switched DC
or analog process outputs.

Figure 17b — Output 3 Process

SD_ _ - _ _ _ F - _ _ _ _

• Analog output scalable from 0 to 10VÎ (dc) or 0 to 20 mAÎ (dc).

• Load capability: voltage, 1 k minimum; current, 800  maximum.

• Output supplies power.

• Cannot use voltage and current output at the same time.

12

12 amps +

13

13 volts +

14

14 com -

Watlow Series SD • 17 • Chapter 2 Install and Wire

9V (dc) (see note)

120V (ac)

COM.
T+/R+
T-/R-

EIA-232

ADA485L

EIA-485

A

B

A

B

G

9V

G

DI/ODI/O

3

4

7-ft. comms cable ­Watlow p/n 0219-0217-0000

Selecting an EIA/TIA-232 to EIA/TIA-485 Converter

When choosing an EIA/TIA 232 to 485 converter, look for
one with the following features:

Two-wire capability

TD (A)

GND

TD (B)

GND

EIA/TIA-485 can be implemented as a two-wire

system or a four-wire system. Most Watlow control-

485SD9TB

lers, including the Series SD, use two-wire com­munications when working with EIA/TIA-485. The

Watlow p/n 0830-0473-0001

converter selected must have a two-wire mode.
Some converters can only be used in a four-wire
mode.

Automatic Send Data control

In a two-wire system, both the transmitted signals

and the received signals travel over the same pair
of wires, so the converter must have a method of
changing from the transmit mode to the receive
mode. Some converters require the toggling of a

Figure 18a — B&B Converters
Isolated Converter - 4850I9TB
Non-Isolated Converter - 485SD9TB
B&B Electronics Manufacturing Company,
[phone], http://www.bb-elec.cm/

6 ft. comms cable ­Watlow p/n 0830-0473-0003

control line (usually the RTS line) to perform this
transition, while others use an automatic timing
circuit. The toggling method is dependent on the
PC software to toggle the control line and the PC’s
operating system to make that transition happen
in a timely manner. Because of these dependencies,
the best choice for a converter is one with automat­ic control.

Isolation

Converters are available with or without input-to-

output isolation. An isolated converter is not a re­quirement when used with the Series SD, but it is
recommended to avoid ground loops. Isolation could
be a consideration when the Series SD will be used
on a network with other devices that may require
isolation.

Power Supply

Figure 18b — CMC Non-Isolated Converter - ADA485L
CMC Connecticut Micro-Computer, Inc.,
1-800-426-2872, http://www.2cmc.com/

Many converters can be powered up either through

the signals of a serial port or through an external
power supply. Because some computers, such as
laptops, do not always provide enough power to

NOTE:
The CMC converter requires an external power supply when
used with a laptop computer.

supply the converter, we recommend using an ex­ternal power supply with specifications as recom­mended by the converter manufacturer. Isolated
converters may require two supplies.

Biasing and termination

Power Supply

DC

-VÎ

+VÎ

If the system does not work properly, it may need

termination resistors at each end of the network.
A typical installation would require a 120-ohm
resistor across the transmit/receive terminals (3
and 4) of the last controller in the network and the
converter box. Pull-up and pull-down resistors may

EIA/TIA 485

Converter

+VÎ-VÎ

GND

1KΩ

B

120Ω

A

1KΩ

be needed at the converter to maintain the correct
voltage during the idle state. The pull-up resistor
is connected between the positive of the DC supply
and the T+/R+ terminal. The pull-down resistor is
connected between the negative of the DC supply
and the T-/R- terminal.

Watlow Series SD • 18 • Table of ContentsWatlow Series SD • 18 • Chapter 2 Install and Wire

Figure 18c — Wiring bias and termination resistors.
Controllers must be wired in a daisy chain configuration.
Add a 120Ω termination resistor on the last controller.

12V (dc)

Power

–

Supply

+

Watlow p/n 0830-0473-0002

SD

3

3

44

T+/R+

T-/R-

T-/R ­T+/R+

120V (ac)

SD SD

3

4

4
3

120Ω

Ethernet Gateway

The EM00-GATE-0000 is a bridge that allows

up to 32 Watlow controllers to be directly con­nected to an Ethernet network.

The gateway provides a bridge for Modbus

messages between the Ethernet bus and EIA­485 or EIA-232 links. The Gateway supports
full product configuration monitoring and
configuration of runtime parameters via MOD­BUS TCP over TCP/IP using a software pack­age such as Watlow’s WATVIEW™.

The Series SD can be configured using WAT-

VIEW with or without the EM Gateway.

For more information, go to www.watlow.com

and search on EM Gateway.

Note: The 32 controller maximum is a functional limitation
of the Ethernet Gateway.

Note: The EM Gateway does not currently support the Se­ries SD profiling version.

3

T+/R+

4

T-/R-

Ethernet
RJ45

24Vı (ac/dc)

Figure 19a — Connecting to the Watlow EM Gateway
(Ethernet to EIA/TIA-485 Serial Modbus connection).
Controllers must be wired in a daisy chain configuration.

Note: UL Approved, Class 2, power supply required as EM
Gateway power source: 24VÎ (dc), part 0830-0474-000.

Watlow Series SD • 19 • Table of ContentsWatlow Series SD • 19 • Chapter 2 Install and Wire

3

4

1

2

3

%

4

1

2

3

%

Chapter 3: Keys and Displays

1/32 DIN

12 %

12 %

SD

SD

1/8 DIN Vertical

123 %

1/16 DIN

231

SDSDSDSD

1/8 DIN Horizontal

SD

SD

SD

SD

%

123 %

SDSDSDSD

1/4 DIN

SD

SD

SD

SD

process in the Home Page, or the value of the parameter in
the lower display in other pages.

Lower Display (Right Display on 1/32 DIN): Indicates the

set point or output power value during operation, or the pa­rameter whose value appears in the upper display.

Upper Display (Left Display on 1/32 DIN): Indicates the

‰

Advance Key

Advances the low­er or right display
through param­eter prompts.

Toggle between
File and Step in
Pre-Run menu
(profiling version
only).

Note: After 60 seconds with no key presses, the controller reverts to the Home Page.

ˆ

Infinity Key

Returns to the
Home Page.

Clears latching
alarms.

Start, hold or
resume a profile
(profiling version
only).

¿
¯

Up and Down
Keys

In the Home
Page, adjusts the
set point in the
lower or right
display. In other
pages, changes
the upper display
to a higher or
lower value.

123

Active Output
Indicator
Lights

Lit when the cor­responding con­troller output or
alarm is on.

%

Auto-Manual
Control Indi­cator Light

(static set point

version only)
On: Manual Mode

( open loop control)
Off: Auto Mode

( closed loop con­trol)

1/32 DIN

Profile Sta­tus Indicator
Light

version only)

On: Running a

profile

Off: Not running

a profile

Flashing: Pre-

Run menu

SD

SD

12 %

12 %

(profiling

Watlow Series SD • 20 • Chapter 3 Keys and Displays

Home Page Overview

The Home Page is the default display of the Series SD
controller. The process value is usually shown in the
upper display. Press Infinity Key ˆ to return to Home
Page from any page or parameter.

Note: See the Profiling chapter for more profiling information.

Automatic Mode (static set point version)

The % indicator light is off.

[``75] Actual temperature
[``75] Temperature set point (Use Up ¿ or Down ¯ keys

to raise or lower the set point.)

Manual Mode (static set point version)

The % indicator light is on.

[``75] Actual temperature
[``0;0] Output power setting (Use Up ¿ or Down ¯ keys to

raise or lower the percent power set point.)

Manual Mode (profiling version) ***

Note: A profile can be started from Manual Mode. See the Pro­filing chapter.

[``75] Actual temperature
[P``0] Output power setting (Use Up ¿ or Down ¯ keys to

raise or lower the percent power set point.)

Error condition

The % indicator light is on** or the profile indicator light is off***.
If the controller was in Auto mode it will switch to Manual mode
when it detects an input error.
If a profile is running, it switches to the Hold mode. The profile
can be resumed, once the error condition is cleared.***

%

** ***

[----] Dashed lines
[Er;In] Error message

Alarm Message

[``75] [``75] Process value
[A1;Lo] [``75]

If alarm message is enabled for an output, the alarm message
alternates with set point (auto) or power setting (manual).
The corresponding output indicator light is on.

During Ramp to Set Point**

The lower display alternates between the current set point
achieved in the ramp and the target set point.

[``75] [``75] [``75] [``75] Actual temperature
[``rP] [``75] [rP;tg] [`100]

%

**

%

**

Adjusting the temperature set point

Adjust the temperature set point in the Home Page. It
is not necessary to enter any other page. The tempera­ture set point appears in the lower display and only
appears when the controller is in the automatic mode.

To adjust the set point:

1. Ensure the controller is in the automatic mode
and that you are on the Home Page. If you are on
any other page, press the Infinity Key ˆ.

2. The temperature set point is displayed in the
lower display window. Press the Up Key ¿ to in­crease the temperature. Press the Down Key ¯
to decrease the temperature. The set point cannot
be set manually while a profile is running.

3. The controller will automatically begin using the
new set point after three seconds. Or press the
Infinity Key ˆ to immediately use the new value.

Note: The [`LOC] parameter can lock the ability to adjust
the set point. If you are unable to adjust the set point, check
[`lOC] setting on the Setup Page.

Note: While a profile is running, the set point cannot be manu­ally adjusted.

Note: To stop the Series SD PID controller or PID profiling con­troller from controlling to a set point, press the Down Key while
the set point value is equal to the SP.Lo setting.

[Off] will be

displayed in the lower display and the controller will no longer
attempt to maintain a set point.

ç

Caution:
The controller is in the manual mode when the percent
indicator is lit** or [P``~] appears in the most signifi­cant digit of the lower display***. If the controller is in the
manual mode, the number displayed in the lower display is
the manual output power level. Setting this value can force
an output to stay on, regardless of the temperature reading.
Always ensure you are in the automatic mode when adjust­ing the temperature set point.

Current
set point
prompt

Current
set point
value

Ramp
target
prompts

Ramp
target set
point value

**Static set point version only

***Profiling version only

Watlow Series SD • 21 • Chapter 3 Keys and Displays

Operations Page Overview

The Operations Page contains parameters accessed
during normal day-to-day operation. The Series SD
provides a patented user-definable menu system, al­lowing the user to customize the Operations Page con­tents. To go to the Operations Page, press the Advance
Key

‰

once from the Home Page.

• Press the Advance Key ‰ to move through the

parameter prompts. At the end of the Operations
Page parameters, press the Infinity Key ˆ to re­turn to the Home Page.

• Press the Up ¿ or Down ¯ keys to change the pa-

rameter value.

• Press the Infinity Key ˆ at any time to return to

the Home Page.

Note: The Operations Page is not accessible while a profile is
running.***

Operations Page (typical defaults)

SD_(C or R) -_ _ _ _ - _ _ _ _

Operations Page with TRU-TUNE+™

SD_E- _ _ _ _ - _ _ _ _

(typical defaults)

‰

[Po;ht] Power Heat
[A-m] Auto-Manual**
[~Aut] Autotune
[t;tun] TRU-TUNE+™ Enable
[~CAL] Calibration Offset
[ht;m] Heat Control Method
[Pb;ht] Proportional Band Heat
[h;hyS] Heat Hysteresis
[CL;M] Cool Control Method
[Pb;CL] Proportional Band Cool
[C;hyS] Cool Hysteresis
[It;hc] Integral
[dE;hc] Derivative
[A1;hi] Alarm 1 High
[A1;Lo] Alarm 1 Low
[A2;hi] Alarm 2 High
[A2;Lo] Alarm 2 Low
[A3;hi] Alarm 3 High
[A3;Lo] Alarm 3 Low
[none] None

[Po;ht] Power Heat

‰

[A-m] Auto-Manual**
[~gsd] Guaranteed Soak Deviation Value***
[~Aut] Autotune
[~CAL] Calibration Offset
[ht;m] Heat Control Method
[Pb;ht] Proportional Band Heat
[re;ht] Reset Heat OR
[It;ht] Integral Heat
[ra;ht] Rate Heat OR
[dE;ht] Derivative Heat
[h;hyS] Heat Hysteresis
[CL;M] Cool Control Method
[Pb;CL] Proportional Band Cool
[rE;CL] Reset Cool OR
[It;CL] Integral Cool
[rA;CL] Rate Cool OR
[dE;CL] Derivative Cool
[C;hyS] Cool Hysteresis
[A1;hi] Alarm 1 High
[A1;Lo] Alarm 1 Low
[A2;hi] Alarm 2 High
[A2;Lo] Alarm 2 Low
[A3;hi] Alarm 3 High
[A3;Lo] Alarm 3 Low
[Ent1] Event Output 1***
[Ent2] Event Output 2***
[Ent3] Event Output 3***

Note: Hardware configuration and programming selections
determine what parameters appear in the Operations Page. A
maximum of 20 or 23 *** parameters can be defined to appear
on the Operations Page. The Programming Page settings deter­mine what appears on the Operations Page.

ç

Caution:
The controller is in the manual mode when the percent indi­cator is lit or [P``~] appears in the most significant digit
of the lower display***. If the controller is in the manual
mode, the number displayed in the lower display is the
manual output power level. Setting this value can force an
output to stay on, regardless of the temperature reading. Al­ways ensure you are in the automatic mode when adjusting
the temperature set point.

*** Profiling version only (SD_R- _ _ _ _ - _ _ _ _)

Watlow Series SD • 22 • Chapter 3 Keys and Displays

Setup Page Overview

[`SEt]

[PAgE]

The Setup Page contains parameters that define
basic controller functions. Go to the Setup Page
for initial configuration or if your application re­quirements change. Be sure to program the Setup
Page first!

Always press the Infinity Key ˆ to return to the
Home Page.

You must start from the Home Page.
To go to the Setup Page, press both the Up ¿ and

Down ¯ keys for about three seconds.

• Press the Advance Key ‰ to move through

the parameter prompts.

• Press the Up ¿ or Down ¯ keys to change

the parameter value.

• Press the Infinity Key ˆ at any time to re-

turn to the Home Page.

Note: Hardware configuration and programming selec­tions determine what parameters appear on the Setup
Page.

Note: The Setup Page is not accessible while a profile is
running.***

Setup Page

‰

[`Sen] Sensor Type
[`Lin] Thermocouple Linearization
[`C-F] Temperature Units
[S;deC] Temperature Decimal Places
[P;dEC] Process Decimal Places
[IS;En] InfoSense
[IS;P1] InfoSense Point 1
[IS;P2] InfoSense Point 2
[IS;P3] InfoSense Point 3
[IS;P4] InfoSense Point 4
[Sc;Lo] Process Scale Low
[Sc;hi] Process Scale High
[P1;LE] Process Input Low Error
[P1;HE] Process Input High Error
[rg;Lo] Units Scale Low
[rg;hi] Units Scale High
[SP;Lo] Set Point Low Limit
[SP;hi] Set Point High Limit
[Ftr;E] Input Filter
[FLtr] Filter Value
[Ot`1] Output 1 Function
[Ctr1] Control Method 1
[Ftb1] Fixed Time Base 1
[PL`1] Power Limit 1
[PSL1] Output Power Scale Low 1
[PSh1] Output Power Scale High 1
[nLF1] Output Non-linear Function 1
[AO1;U] Analog Output 1 Units
[O1;Lo] Analog Output 1 Scale Low
[O1;hi] Analog Output 1 Scale High
[r1;So] Output 1 Retransmit Source
[r1;Lo] Output 1 Retransmit Low Scale
[r1;Hi] Output 1 Retransmit High Scale
[r1;CO] Output 1 Retransmit Offset

** Static set point version only

*** Profiling version only

**** TRU-TUNE+™ version only

Setup Page (continued)

[Ot`2] Output 2 Function

‰

[Ctr2] Control Method 2
[Ftb2] Fixed Time Base 2
[PL`2] Power Limit 2
[PSL2] Output Power Scale Low 2
[PSh2] Output Power Scale High 2
[nLF2] Output Non-linear Function 2
[[Ot`3] Output 3 Function
[Ctr3] Control Method 3
[Ftb3] Fixed Time Base 3
[PL`3] Power Limit 3
[PSL3] Output Power Scale Low 3
[PSh3] Output Power Scale High 3
[nLF3] Output Non-linear Function 3
[AO3;U] Analog Output 3 Units
[O3;Lo] Analog Output 3 Low Scale
[O3;hi] Analog Output 3 High Scale
[r3;So] Output 3 Retransmit Source
[r3;Lo] Output 3 Retransmit Low Scale
[r3;Hi] Output 3 Retransmit High Scale
[r3;CO] Output 3 Retransmit Offset
[hyS1] Alarm 1 Hysteresis
[Lgc1] Alarm 1 Logic
[LAt1] Alarm 1 Latching
[SiL1] Alarm 1 Silencing
[dSP1] Alarm 1 Message
[hyS2] Alarm 2 Hysteresis
[Lgc2] Alarm 2 Logic
[LAt2] Alarm 2 Latching
[SiL2] Alarm 2 Silencing
[dSP2] Alarm 2 Message
[hyS3] Alarm 3 Hysteresis
[Lgc3] Alarm 3 Logic
[LAt3] Alarm 3 Latching
[SiL3] Alarm 3 Silencing
[dSP3] Alarm 3 Message
[ACLF] AC Line Frequency
[Unit] Units of Measurement
[I;Err] Input Error Latching
[FAIL] Input Error Failure Mode
[MAn] Input Error Power
[`dSP] Active Displays
[``rP] Ramping Mode**
[rP;Sc] Ramp Scale**
[rP;rt] Ramp Rate**
[Ptyp] Profile Type***
[PStr} Profile Start***
[gs;dE] Guaranteed Soak Deviation Enable***
[`gsd] Guaranteed Soak Deviation Value***
[Addr] Modbus Device Address
[bAud] Baud Rate
[t;tun] TRU-TUNE+™ Enable****
[AgrS] Autotune Aggressiveness
[t;bnd] Tune Band****
[`t;gn] Tune Gain****
[`LOC] Lockout

Watlow Series SD • 23 • Chapter 3 Keys and Displays

Programming Page Overview

[Prog]
[PAgE]

The Programming Page determines what parameters
the user wants to appear on the Operations Page. Se­lect a parameter for any of the 20 (23 for the profiling
version***) Programming Page locations, P1 to P20
(P23***). These now appear on the Operations Page.
All 20 (23***) locations have parameters selected as
defaults.

To go to the Programming Page, hold down the Infinity
key ˆ, then press the Advance Key ‰, and hold both
down for about six seconds.

• Press the Advance Key ‰ to move through the

parameter prompts.

• Press the Up ¿ or Down ¯ keys to change the pa-

rameter value.

• Press the Infinity Key ˆ at any time to return to

the Home Page.

Note: The hardware configuration and programming selections
will also determine what parameters appear on the Operations
Page. A Programming Page selection will not appear on the
Operations Page if the parameter is not active.

Note: The Programming Page is not accessible while a profile
is running. ***

Programming Page

[~~P1] Parameter Location 1 (48)

‰

[~~P2] Parameter Location 2 (49)
[~~P3] Parameter Location 3 (50)
[~~P4] Parameter Location 4 (51)
[~~P5] Parameter Location 5 (52)
[~~P6 Parameter Location 6 (53)
[~~P7] Parameter Location 7 (54)
[~~P8] Parameter Location 8 (55)
[~~P9] Parameter Location 9 (56)
[~P10] Parameter Location 10 (57)
[~P11] Parameter Location 11 (58)
[~P12] Parameter Location 12 (59)
[~P13] Parameter Location 13 (60)
[~P14] Parameter Location 14 (61)
[~P15] Parameter Location 15 (62)
[~P16] Parameter Location 16 (63)
[~P17] Parameter Location 17 (64)
[~P18] Parameter Location 18 (65)
[~P19] Parameter Location 19 (66)
[~P20] Parameter Location 20 (67)
[~P21] Parameter Location 21 (68)***
[~P22] Parameter Location 22 (69) ***
[~P23] Parameter Location 23 (47)***

Factory Page Overview

[FAct]
[page]

The Factory Page contains information on diagnostics,
calibration and restore-parameter functions.

To go to the Factory Page, press both the Up ¿ and
Down ¯ keys for about six seconds from the Home
Page.

• Press the Advance Key ‰ to move through the
parameter prompts.

• Press the Up ¿ or Down ¯ keys to change the pa-
rameter value of Read/Write (R/W) parameters.

• Press the Infinity Key ˆ at any time to return to
the Home Page.

Note: Hardware configuration and programming selections de­termine what parameters appear on the Factory Page.

Note: The Factory Page is not accessible while a profile is run­ning. ***

Factory Page

[AMb] Ambient Temperature

‰

[A;mn] Minimum Recorded Ambient Temperature
[A;ma] Maximum Recorded Ambient Temperature
[DSPL] Display Intensity
[A;Ot1] Output 1 Process Value
[A;Ot3] Output 3 Process Value
[rESt] Restore Factory Calibration
[Usr;r] Restore User Settings
[USr;S] Save User Settings
[PrF;r] Restore Profile Settings***
[Prf;S] Save Profile Settings***
[dFLt] Default Parameters
[O;ty1] Output 1 Type
[O;ty2] Output 2 Type
[O;ty3] Output 3 Type
[`S;Id] Software ID
[S;UEr] Software Version
[S;bld] Software Build Number
[PWr] Power Type
[`Sn-] Serial Number 1 (first four digits)
[`Sn_] Serial Number 2 (last four digits)
[tc;50] Thermocouple, 50mV
[tc;00] Thermocouple, 0mV
[tc;32] Thermocouple, 32°F
[`r;15] RTD, 15 ohm
[r;380] RTD, 380 ohm
[``U;1] Input Calibrate, 1.0 Volt
[``U;9] Input Calibrate, 9.0 Volt
[``A;4] Input Calibrate, 4.0 mA
[`A;16] Input Calibrate, 16.0 mA
[O1;1u] Output 1 Calibrate, 1.0 Volt
[O1;9u] Output 1 Calibrate, 9.0 Volt
[O1;4A] Output 1 Calibrate, 4.0 mA
[O1;16] Output 1 Calibrate, 16.0 mA
[03;1u] Output 3 Calibrate, 1.0 Volt
[03;9u] Output 3 Calibrate, 9.0 Volt
[03;4A] Output 3 Calibrate, 4.0 mA
[03;16] Output 3 Calibrate, 16.0 mA

*** Profiling version only

Calibration information for the Series SD controllers is available
in pdf format. Go to www.watlow.com / Literature / Product User
Manuals and search on Series SD Calibration Manual.

Watlow Series SD • 24 • Chapter 3 Keys and Displays

4

Chapter 4: Home Page

Press the Infinity Key ˆ at any time to go to the Home Page.
Depending upon the controller’s status, you will see some combination of the parameters listed below. Normally,

you will see the Process Value in the upper display and the Set Point in the lower display. See Home Page Over­view in the Keys and Displays chapter.

After 60 seconds with no key presses, the controller reverts to the Home Page.

Display Parameter Name

Measured
Value

Set Value Closed Loop Set Point

Measured
Value

Set Value Open Loop Output Power

[``rP]

[rp;tg]

[Er;In]

[A1;Lo]

[A1;hi]

[A2;Lo]

[A2;hi]

[A3;Lo]

[A3;hi]

Process Value

Displays the current process value in the
upper (left in 1/32 DIN) display.

Show the current closed loop control set
point in the lower (right in 1/32 DIN)
display.

Filtered Process Value

Displays the current filtered process value
in the upper (left in 1/32 DIN) display.

Show the current open loop (manual) con­trol set point in the lower (right in 1/32
DIN) display.
The % indicator light is on when the con­troller is in open loop (manual control).

Current Ramp Set Point**

The current working control set point for
the ramp that is in process appears in the
lower (right in 1/32 DIN) display after
this prompt appears.

Ramp Target Set Point

The target set point for the ramp that is
in process appears in the lower (right in
1/32 DIN) display abter this prompt ap­pears.

Input Error

Indicate an input error state.

Alarm Low 1 Status

Indicate a low alarm at output 1.

Alarm High 1 Status

Indicate a high alarm at output 1.

Alarm Low 2 Status

Indicate a low alarm at output 2.

Alarm High 2 Status

Indicate a high alarm at output 2.

Alarm Low 3 Status

Indicate a low alarm at output 3.

Alarm High 3 Status

Indicate a high alarm at output 3.

Description

Settings Range

(Integer values for Mod-

bus in parenthesis.)

-1999 to 9999 degrees
or units (-1999000 to

9999000)

Set Point Low Limit

[SP;Lo] to Set Point
High Limit [SP;hi]

[`OFF] Stop controlling

to SP (-200000001)

-1999 to 9999 degrees
or units (-1999000 to

9999000)

-100.0 to 0.0% if any out­put is set to cool;

0.0 to 100.0% if any
output is set to heat
(-10000 to 0000, 0000
to 10000. Two decimal
places implied for Mod­bus.)

-1999 to 9999
(-1999000 to 9999000)

Set Point Low Limit

[SP;Lo] to Set Point
High Limit [SP;hi]

None (0)
[----] Error (1)

None (0)
Alarm (1)

None (0)
Alarm (1)

None (0)
Alarm (1)

None (0)
Alarm (1)

None (0)
Alarm (1)
None (0)

Alarm (1)

Default Modbus*

NA *20, 21 R There is no input er-

75 *27, 28

NA *22, 23 R There is no input er-

0.0% 26 R/W Control mode is

NA *254, 255 RStatic set point ver-

NA Same as

NA 24 R There is an analog in-

NA 29 R There is an Alarm 1

NA 30 R There is an Alarm 1

NA 31 R There is an Alarm 2

NA 32 R There is an Alarm 2

NA 33 R There is an Alarm 3

NA 34 R There is an Alarm 3

(less 40,001

offset)

Read/Write

R/W

closed loop
set point.

Appears if:

ror and [Ftr;E] is set
to [`Off] or [CntL].

Control mode is
[auto] and there is
no input error.

ror and [Ftr;E] is set
to [Disp] or [both].

[Man]. If there is
no input error and

[Ftr;e] is set to
[`Off] or [Cont].

sion only and ramp to
set point active.
(SD _C - _ _ _ _ - _ _ _ _ )

Static set point ver­sion only and ramp to
set point active.
(SD _C - _ _ _ _ - _ _ _ _ )

put error

low side alarm.

high side alarm

low side alarm.

high side alarm

low side alarm

high side alarm.

Note: Some values will be rounded off to fit in the four-character display. Full values can be read with Modbus. All temperature
parameters are in °F through Modbus.

* Low register numbers contain the two higher bytes; high register numbers contain the two lower bytes of the four-byte integer.
Decimal precision is implied at three decimal places unless otherwise noted.

** Static set point version only (SD_C-_ _ _ _- _ _ _ _ ).

Watlow Series SD • 25 • Chapter 4 Home