Dwyer 8600 User Manual

INSTRUCTIONS FOR THE 8600 SERIES

MICROPROCESSOR BASED

TEMPERATURE / PROCESS CONTROL

LOVE CONTROLS DIVISION

Dwyer Instruments, Incorporated

®

December, 1998 Page 1 949-1277-3

PO Box 338 Michigan City, IN 46361-0338

[phone] [phone] FAX [phone]

m

m

www.love-controls.com

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CONTENTS

Installation ...............................................................................................4

Wiring ...................................................................................................... 5

Wiring for Transmitter inputs.............................................................6

Wiring for 15 VDC Outputs ............................................................... 6

Wiring for Optional Inputs and Outputs.............................................7

Front Panel Key Functions ...................................................................... 8

Notation Conventions for the Menus ..................................................... 10

The Home Display.................................................................................11

Programming and Operation for Ramp / Soak feature .......................... 11

Theory of Operation .............................................................................. 11

Program Setup ...................................................................................... 12

Ramp / Soak Operation.........................................................................13

Auto / Manual Operation ....................................................................... 14

Operation of Self Tune® Function.........................................................15

Theory of Operation .............................................................................. 15

Program Setup and Operation .............................................................. 15

Operation and Programming of Options................................................16

Menu Selections...................................................................................18

Primary Menu ........................................................................................ 18

Secondary Menu ................................................................................... 19

Secure Menu ......................................................................................... 26

Alarm Type and Action .......................................................................... 30

Diagnostic Error Messages ................................................................... 35

Specifications ........................................................................................ 37

Dimensions............................................................................................ 40

© 1995, Love Controls Division, Dwyer Instruments, Incorporated. All rights reserved. No
portion may be copied without the express written consent of Love Controls.

949-1277-3 Page 2 December, 1998

GETTING STARTED

1. Install the control as described on page 3.

2. Wire your control following the instructions on page 5. If you are using

a two-wire transmitter as an input, see the drawing and instructions on

page 6. Option wiring instructions are on Page 7. Option descriptions

and specific instructions start on page 16.

3. Most controls do not need many (if any) program changes to work on

your process. For best results when programming changes are

necessary, make all the necessary changes in the Secure Menu (page

26) before making changes to the Secondary Menu (page 19). If error

messages occur, check the Diagnostic Error Messages on page 35 for

help.
Take the example of a Model 86010 that comes from the factory pro-

grammed for type J thermocouples. Suppose for this example you wish to
change the input to type K and limit the set point range between 0° and
1000° C.

First, enter the Secure menu as instructed on page 5. Press the INDEX key
until the display shows Inp and press the DOWN ARROW until the display
shows CA. Don't forget to press the ENTER key to retain your setting.

Next, press the INDEX key to display Unit. Press the DOWN ARROW until
the display shows C. Press ENTER.

Next, press the INDEX key until SPL is displayed (pass the dPt and InPt
selections). Press the UP ARROW until the display shows 0. Press
ENTER.

Finally, press INDEX key to display SPH. Press the DOWN ARROW until
the display shows 1000. Press ENTER.

The necessary program changes are now complete. After 30 seconds the
display will switch back to the temperature reading. If you want to return
faster, press the UP ARROW and ENTER keys (at the same time) and then
press the DOWN ARROW and INDEX keys ( again at the same time). This
will 'back out' of the menu and immediately display the temperature reading.

If you want to use Self Tune®, Auto/Manual, or the Ramp/Soak Program­mer features, see the special sections on these items. Page numbers for
these are in the Contents section on the previous page.

December, 1998 Page 3 949-1277-3

MODEL IDENTIFICATION

Model 8 6 — — —

Alarm

0 = No
1 = Yes

Output 1

1 = SSR
2 = 15 VDC

3 = Relay
5 = Current

Output 2

0 = None
1 = SSR

3 = Relay
5 = Current

2 = 15 VDC

INSTALLATION

Mount the instrument in a location that will not be subject to excessive
temperature, shock, or vibration. All models are designed for mounting in an
enclosed panel.

Select the position desired for the instrument on the panel.
Prepare the panel by cutting and deburring the required opening.

From the front of the panel, slide the instrument through the cut out. The
housing gasket should be against the housing flange before installing.

From the rear of the panel slide the mounting collar over the housing. Hold
the housing with one hand and using the other hand, push the collar evenly
against the panel until the springs are compressed. The ratchets will hold the
mounting collar and housing in place.

OPTIONS

Orientation

0 = Vertical
1 = Horizontal

PANEL CUTOUTS

Vertical

Horizontal

949-1277-3 Page 4 December, 1998

It is not necessary to remove the control chassis from the
housing for installation. If the control chassis is removed
from the housing, you must follow industry standard prac­tice for control and protection against Electro-Static Dis­charge (ESD). Failure to exercise good ESD practices may
cause damage to the control.

WIRING

Do not run thermocouple or other class 2 wiring in the same conduit as power
leads. Use only the type of thermocouple or RTD probe for which the control
has been programmed. Maintain separation between wiring of sensor,
auxiliary in or out, and other wiring. See the "Secure Menu" for input selection.

For thermocouple input always use extension leads of the same type desig­nated for your thermocouple.

For supply connections use No. 16 AWG or larger wires rated for at least 75°C.
Use copper conductors only. All line voltage output circuits must have a
common disconnect and be connected to the same pole of the disconnect.

Input wiring for thermocouple, current, and RTD; and output wiring for 15 VDC
is rated CLASS 2.

Wiring to housing terminals while chassis is removed
may cause distortion of the internal connector and pos­sible damage to the connector when the chasis is re­installed. It is strongly recomended that the control
housing be wired with the chassis installed.

Control wiring is as shown.

+

1

21

T/C

2

V

RTD

6

NO

ALARM 1

7

8

9

OUTPUT*

C

NO

ALARM 2

OUTPUT*

C

-

3

4

+

5

6

7

8

9

10

22

23

24

+

-

24 VDC
@ 50 mA
ISOLATED

SET POINT
1 OUTPUT*

SET POINT
2 OUTPUT*

F1

15VDC
pulsed

RELAY

NC

C

+

NO

-

NC

C

+

NO

-

CURRENT

SSR

+

-

+

-

* IF SWITCHING INDUCTIVE LOADS
(RELAYS, MOTORS, SOLENOIDS,
ETC.) USE AN R/C SNUBBER
ACROSS COIL.

11

12

13

14

15

16

17

18

19

20

F1 = 3/8A 250VAC MEDIUM LAG

LINE INPUT

UNUSED TERMINALS CAN NOT BE USED
AS TIE POINTS FOR OTHER CIRCUITS.

SEE RATING LABEL

FOR DETAILS

December, 1998 Page 5 949-1277-3

13

14

15

16

17

18

Wiring for Transmitter inputs

Wire power and outputs as shown on previous page. Two-wire transmitters
wire as shown below.

For three or four wire transmitters follow the wiring instructions provided
with your transmitter.

DO NOT WIRE THE 24 VOLT POWER SUPPLY ACROSS
THE INPUT OF THE CONTROL. DAMAGE TO THE CON-

TROL INPUT CIRCUITRY WILL RESULT.

Wiring for Optional Inputs and Outputs

Wire power and outputs as shown on page 5. Wiring for options is shown
opposite. All wiring shown below is Class 2. Shielded twisted pair is
recommended for Option 992.

DO NOT RUN SIGNAL WIRING IN THE SAME CONDUIT
OR CHASE AS THE POWER WIRING. ERRATIC OPERA-

TION OR DAMAGE TO THE CONTROL CIRCUITRY WILL
RESULT.

949-1277-3 Page 6 December, 1998

OPTION 10 21 22

948 & 949 Truth Table

948 Sig. Ground B A
936 Not Used + ­ 924 Not Used + ­ 926 Not Used + ­ 928 Not Used CCW Wiper

10

1

2

3

4

5

6

7

8

9

21

23

24

22

11

12

13

14

15

16

17

18

19

20

A to Gnd. B to Gnd. SP
OPEN OPEN 1SP1
CLOSED OPEN 2SP1
OPEN CLOSED 3SP1
CLOSED CLOSED 4SP1

SWITCH CONTACTS FOR
OPTIONS 948 AND 949 MUST
BE ISOLATED AND CAN NOT
SHARE WIRING WITH OTHER
CONTROLS.

RS-232 DB-25 WIRING

(VIEWED FROM WIRE SIDE)

DATA IN 23
DATA OUT 24
DATA GROUND 10

1 2 3 4 5 6 7 8 9 10 11 12 13

14 15 16 17 18 19 20 21 22 23 24 25

PIN DESCRIPTION
1 SHIELD
2 TRANSMIT
3 RECEIVE
4 RTS
5 CTS

RS-232 DB-9 WIRING

(VIEWED FROM WIRE SIDE)

1 2 3 4 5

6 7 8 9

PIN DESCRIPTION
6 DSR
7 GROUND
8 DCD
20 DTR

DATA OUT 24
DATA IN 23
DATA GROUND 10

PIN DESCRIPTION
1 DCD
2 RECEIVE
3 TRANSMIT
4 DTR
5 GROUND
6 DSR
7 RTS
8 CTS

OPTION 10 23 24
992 Not Used B A

993 Signal Ground Data In Data Out
949 Signal Ground A B

December, 1998 Page 7 949-1277-3

FRONT PANEL KEY FUNCTIONS

Set Point 1 Lamp Alarm Lamps
Set Point 2 Lamp °F Indicator
Process Display °C Indicator
Set Point Display Remote Set Lamp
Manual Indicator Per Cent Lamp
Heater Break Indicator Hold Lamp

The decimal point flashes when Self-Tune is operating.

Key functions are as follows:

INDEX: Pressing the INDEX key advances the display to the next
menu item. May also be used in conjunction with other keys as noted
below.

UP ARROW: Increments a value, changes a menu item, or
selects the item to ON. The maximum value obtainable is 9999
regardless of decimal point placement.

DOWN ARROW: Decrements a value, changes a menu item, or
selects the item to OFF. The minimum value obtainable is -1999
regardless of decimal point placement.

ENTER: Pressing ENTER stores the value or the item changed. If
not pressed, the previously stored value or item will be retained. The
display will flash once when ENTER is pressed.

AUTO/MANUAL: This key toggles the control output between
Automatic mode and Manual mode. Press and hold key for three
seconds to activate. See section on AUTO/MANUAL operation on
Page 13.

RUN/HOLD: This key toggles the Ramp/Soak programmer functions
between Run mode (program runs as set up), and Hold mode (program
functions are suspended). Press and hold key for three seconds to
activ ate. See section on Programmer Functions (Page 10) for further
details.

949-1277-3 Page 8 December, 1998

UP ARROW & ENTER: Pressing these keys simultaneously brings up
the secondary menu starting at the alarm, tune, or cycle item (depending
on programming). Pressing these keys for 5 seconds will bring up the

secure menu.
INDEX & DOWN ARROW: Pressing these keys simultaneously will allow

backing up one menu item, or if at the first menu item they will cause the
display to return to the primary menu. If an alarm condition has occurred,
these keys may be used to reset the alarm.

INDEX & ENTER: Pressing these keys simultaneously and holding them
for 5 seconds allows recovery from the various error messages. The
following menu items will be reset:

ALiH: Alarm inhibit OPEn InP: Input error message

bAd InP: Input error message CHEC CAL: Check calibration error
Correct the problems associated with the above conditions before

using these reset keys. More than one error could be present. Caution is

advised since several items are reset at one time.

While in the Primary or Secondary Menu, if no key is pressed for a period
of 30 seconds, the display will return to the HOME position displaying the
temperature value. While in the Secure Menu, if no key is pressed for a
period of 60 seconds, the display will return to the HOME position displaying
the temperature value. Outputs are disabled (turned off) when the Secure

Menu is active.
NOTE: To move to the Primary Menu quickly from any other menu, press

the UP ARROW & ENTER keys followed by pressing the INDEX & DOWN
ARROW keys.

SECURITY LEVEL SELECTION

Four levels of security are provided. The display shows the current security
level. To change security levels change the password value using the UP &
DOWN ARROW keys and pressing the ENTER key. Refer to the password
table (following) for the correct value to enter for the security level desired.
The SECr menu item security level may be viewed or changed at any time
regardless of the present security level.

To set the access level to, for example, 2, at the SECr menu item press the
UP ARROW key until the upper display show the password, 1101. Press
the ENTER key. The display will blink, and return with the level value, 2, in
the upper display.

December, 1998 Page 9 949-1277-3

The password values shown in the table cannot be altered, so retain a copy
of these pages for future reference. This is the only reference made to
password values in this instruction book.

PASSWORD TABLE

Security Level

Menu Status
Primary Locked

Secondary Locked
Secure Locked

Primary Unlocked
Secondary Locked
Secure Locked

Primary Unlocked
Secondary Unlocked
Secure Locked

Primary Unlocked
Secondary Unlocked
Secure Unlocked

Displayed Value

When Viewed

1

2

3

4

Password Value

To Enter

1110

1101

1011

111

NOTATION CONVENTIONS FOR THE MENUS

Because of the number of features available in this control, information is
included that may not apply to your specific control. All usable features are
included in this book, but may not be used in your process. To increase
clarity the following conventions are used:

1. Certain features or functions shown in this book are contextual. This
means that Menu Items may or may not appear, depending on other Menu
Item selections. Whenever this occurs, a notation is made in the Menu Item
that "controls" or "directs" other menu items. If you are looking for a
particular menu item and can't find it, check the menu item that is its
"control" for proper setting.

2. The "#" symbol is used in two ways. It is used inside a group of
characters to indicate which set point function (SP1 or SP2) is being
affected. It is also used before a group of characters of a menu item to
indicate that there may be more than one selection or value for that menu
item. This is used for certain repeated items such as in the Ramp/Soak
Program section.

949-1277-3 Page 10 December, 1998

THE HOME DISPLAY

The home display is the normal display while the control is operating. If no
errors or functions are active, the HOME display will indicate the Process
Variable (the temperature, pressure, flow, RH, etc., that is being measured)
on the top display and the Set Variable (Set Point 1) on the bottom.

Items that can change the HOME display are the Auto/Manual function, the
Run/Hold function, the Prog function, the PCtO function, and any error
message. Description of these special displays follow.

If the Auto/Manual key is pressed, the Manual indicator lights, and the home
display is changed. The upper display continues to show the Process
Variable (PV), but the lower display changes to show the percentage of
output in tenths of a percent to 99.9% (0.0 to 99.9), or 100 if 100%. The
display digit to the right of the number shows a flashing letter o to indicate
that the value displayed is no longer the SV, but percent output. The SP2
output is indicated by the use of an overline on the letter õ. Access to the
SP2 value is done by the INDEX key. See Auto/Manual Operation on Page
13 for further information.

If Prog is turned On, the HOME display changes the SV display from SP1
to the Present Set Variable as calculated by the Ramp/Soak Programmer
function. See Programming and Operation for Ramp/Soak Feature below
for more information.

If PCtO (Secondary Menu) is turned On, the lower display changes to show
the active percentage of output as required to maintain SP1. The display
is similar to the Auto/Manual display above, except that the letter indicators
do not flash, and the output is displayed in whole percentages of output, not
in tenths of a percent. If the control has both SP1 and SP2, the lower display
will alternate between the SP1 percent output and the SP2 percent output.

Error messages are listed on Page 35.

PROGRAMMING AND OPERATION FOR RAMP / SOAK

FEATURE

The ramp / soak feature offers a great deal of flexibility by allowing changes
in the set point to be made over a predetermined period of time. Dwell times
can be programmed, and the alarm output relays can be programmed to
open or close during any of the segments.

Theory of Operation

The 8600 Series controls offer a very simple approach to programming a
ramp. Rather than requiring the operator to calculate an approach rate
(usually in degrees per minute), the 8600 does the calculation internally.

December, 1998 Page 11 949-1277-3

Thus, the operator only needs to program the target set point and the time
desired to reach that point. When the ramp segment is executed by the
control, it calculates the ramp required to move the process from the
starting value (current PV) to the desired value (programmed SP) in the
time allowed.

Soaks (or dwells) are ramp segments where the target set point is the same
as the beginning process value. This allows for multistage ramps without
wasting intermediate soak steps. Care must be taken, however, that the
process does actually reach the soak value before the soak time starts. If
not, the next segment will calculate a slope from the starting PV to the target
SP. Depending on your process requirements, this difference may be
important. Make sure to test any program for desired results before running
production material.

Do not operate Self Tune while a ramp function is operating. The
ramp function will prevent the Self Tune from operating properly.
Make sure that all tuning is set up before operating Ramp / Soak.

Program Setup

All of the programming for the Ramp / Soak function is done in the
Secondary Menu. You may wish to work out your program on paper before
going into the programmer menu sequence.

In the Secondary Menu INDEX to Prog and make sure that Prog is set to
OFF.

INDEX to PSEt and turn On.
Skip the StAt setting (this is discussed later) and press INDEX to 1ti.
The following items repeat in the following order: 1ti, 1SP, 1A1 (if alarm 1

is programmed as an event), 1A2 (if alarm 2 is programmed as an event),
2ti, 2SP, 2A1, 2A2, . . . , 16ti, 16SP, 16A1, 16A2. To avoid repetition each
item will only be described once.

Set 1ti to the amount of time you want for the first ramp. This value is in
time units (determined by the tbAS menu item) from 0 to 9999. Press
INDEX

Set 1SP to the target value desired for the first ramp. This value is in actual
units just like SP1. If the control is programmed for temperature, then the
SP displays are in temperature. If the control is programmed for some other
engineering unit, the SP is set in that unit.

949-1277-3 Page 12 December, 1998

Press INDEX to continue. If Alarm 1 is programmed as an event, then 1A1
will appear. If you wish the Alarm 1 contact to function for this segment, set
1A1 for On. If not, set for OFF. Press INDEX. If Alarm 1 is not programmed
as an event, then 1A1 will not appear. If 1A1 is set to On, the Alarm 1
function will be active for the entire period as set in 1ti above.

If Alarm 2 is programmed as an event, then 1A2 will appear. If you wish the
Alarm 2 contact to function for this segment, set 1A2 for On. If not, set for
OFF. Press INDEX. If Alarm 2 is not programmed as an event, then 1A2
will not appear. If Alarm 2 is not programmed as an event, then 1A2 will
not appear. If 1A2 is set to On, the Alarm 2 function will be active for the
entire period as set in 1ti above.

Complete setting the segment times (2ti ... 16ti), segment set points (2SP
... 16SP), and event alarms (2A1 ... 16A1 and / or 2A2 ... 16A2) if they exist.

For Unneeded or unused segments set the segment times (2ti ... 16ti) to
0, and set the segment set points (2SP ... 16SP) to the same value as the
last active set point. Event alarms may be set to indicate "end of run" as
you feel necessary.

The last menu item for the ramp / soak function is PEnd. PEnd determines
what the control does when the program has ended. You may choose to
have the program repeat (LooP), Hold the last set point (16SP), revert to
the local SP1, or turn the outputs off (OoFF).

It is important to remember that if you want the program to repeat, you must
allow the process to return to the same condition that existed when the
program first started. Remember that the ramp function calculates the
slope by drawing a line from the beginning PV to the ramp target set point.
If the PV at the end of the program is different than the PV at the initial start,
the ramp will calculate differently.

Ramp / Soak Operation

When you wish to start the program, enter the Secondary Menu and set the
Prog menu item to On. Return to the HOME position by waiting for the
display to time out or by pressing the UP ARROW / ENTER keys and then
the DOWN ARROW / INDEX keys.

The home display will read as it normally does. The HOLD indicator over
the RUN / HOLD key will be lit. To start the program press the RUN / HOLD
key. The HOLD indicator will go out, and the program will start.

December, 1998 Page 13 949-1277-3

To suspend the program at any time, press the RUN / HOLD key. Press
the key again to resume.

Pressing the AUTO / MANUAL key will also suspend the program opera­tion. The difference is that AUTO / MANUAL also puts the control into
manual mode. See Auto / Manual Operation on page 13.

The function of the Primary Menu will change depending on the setting of the
StAt menu item in the Secondary Menu. If StAt is OFF then the Primary Menu
is not changed.

If the StAt menu item is set to On, then the Primary Menu has three
additional information items added before SP1 appears. The first INDEX
item, ####/ ti, displays the time remaining in the current segment. The next
INDEX item, ####/##ti, displays the total time for the active segment
(1ti...16ti). The third INDEX item, ####/##SP, displays the segment set
value (1SP...16SP). The next INDEX press resumes the normal Primary
Menu

AUTO / MANUAL OPERATION

The AUTO / MANUAL function allows you to manually adjust the output of
the control. This is normally used during process setup or start up. It can
also be used for troubleshooting. To switch from AUTO to MANUAL press
the AUTO / MANUAL key. The MANual indicator will light and the lower
display will change from normal to showing the actual output in percent. The
value will be the actual percentage of output that was active when the key
was pressed. This is usually known as "bumpless transfer".

If you wish to change the output while in manual, press the UP ARROW or
DOWN ARROW keys to change the value, and press ENTER to retain it. It
is important to remember that the value of the display is read as 0 to 100%
of the full control output, NOT the range between S1OL and S1OH or S2OL
and S2OH. For example, if the set point one output is programmed for 4 to
20 mA (S1OL=20, S1OH=100), a reading of 50% in MANUAL represents
10 mA, not 12mA. This allows the operator to go above and below the output
range to allow for improperly function equipment that may be connected to
the control output.

To return to AUTOmatic control, press the AUTO / MANUAL key again. The
MANual indicator will go out, and the set point will take over. If you want
bumpless transfer back to AUTO, slowly change the percentage of output
until the process variable matches (or at least is close) to the set point. The
further away the PV is from the set point, the greater the "bump" or upset
there will be in the output.

949-1277-3 Page 14 December, 1998

OPERATION OF SELF TUNE® FUNCTION

Self Tune® allows automatic selection of the necessary parameters to
achieve best control operation from your 8600 Series control. If you are
using the control output as a simple on-off function (Out1 set for OnOF),
none of the following will apply.

Theory of Operation

The Self Tune function calculates the Pb1, rES, and rtE parameters under
the PID tunE selection, and the Fbnd and FrtE parameters, as shown in the
Secondary Menu . These values are determined by measuring the response
of the process connected to the control. When Self Tune is started, the
control temporarily acts as an on-off control. While in this mode the control
measures the overshoot and undershoot of the process, and the period of
the process (the time from peak value to the next peak value). These
measurements are collected over a period that lasts three periods of
overshoot and undershoot. The data collected over this time is then
compared and calculated into final PID and Fuzzy Logic values. The effect
of Fuzzy Logic on the process is still controlled by the Fint (fuzzy intensity)
setting. If Fint is 0, the Fbnd and FrtE will be calculated, but will have no
effect. The calculations for the PID values are the same as used in the
standard Ziegler - Nichols equations that have been recognized as standard
for decades.

The only modification to the application of the Ziegler - Nichols equations is
controlled by the dFAC menu item. This menu item controls the amount of
rate (derivative) that is applied. A dFAC setting of 3 (factory default) or less
allows for less damping. A dFAC setting of 4 allows for critical damping as
set forth in Ziegler - Nichols. A dFAC setting of 5 or more allows over
damping of the process.

Program Setup and Operation

In the secondary menu set tunE to SELF. Skip LErn and check to make
sure that dFAC is set to the desired value. Back up to LErn and set to YES.
The control will begin the Self Tune function. While the Self Tune function
is active, the right hand decimal point on the lower display will blink. When
Self Tune is complete, the blinking will stop.

After Self Tune is complete, the tunE setting automatically switches to PID.
This allows examination and / or modification of the values calculated. We
recommend that you do not change the calculated values unless you have
a firm understanding of the parameters involved and their function. For more
information on PID tuning, please contact your supplier.

December, 1998 Page 15 949-1277-3

OPERATION AND PROGRAMMING OF OPTIONS

Options 924, 926, 928, Analog Remote Set Point

The analog remote set point allows the control set point to be determined by
an outside analog signal. The signal may be 0 to 10 VDC (Option 924), 0
(or 4) to 20 mADC (Option 926), or 0 to 10,000 Ohms (Option 928).

Wire the input as shown on page 7.
To set up the analog remote set point, first determine the scale range that

the analog signal will represent. The maximum span is 11,998 degrees or
counts. In the Secure Menu set rSCL for the scale value that will be
represented by the low end of the analog signal (0 Volts, 0 mA, 0 Ohms). Set
rSCH for the scale value that will be represented by the high end of the
analog signal (10 Volts, 20 mA, 10,000 Ohms).

If you require a suppressed scale or input, you may use the following
equations to determine the proper settings for rSCL and rSCH.

K = (Highest desired scale reading - Lowest desired scale reading) /
(Maximum desired analog signal - Minimum desired analog signal).
rSCH = ((Maximum possible analog signal- Maximum desired analog signal)
* K) + Highest desired analog reading.
rSCL = Lowest desired scale reading - ((Minimum desired analog signal) * K).

Operation is simple. Make sure that a valid analog signal is available to the
control. In the Secondary Menu set the rSPt to On. The REM indicator on the
front of the control will turn on. When the control returns to the HOME position,
the displayed SV will be the value supplied from the analog remote signal. If
the analog remote signal fails or goes out of range of the SPL or SPH settings,
the control will revert to the internal SP1 (or #SP1), and flash the error message
CHEC rSPt. If SPL or SPH are set outside of rSCL or rSCH then the error will
be suppressed, and the control will attempt to work with the remote value.

To clear the error message, change rSPt to OFF.

Option 934, 936, Analog Retransmission.

The analog retransmission option allows the Process Variable or the Set
Variable to be sent as an analog signal to an external device. The signal may
be either 0 to 10 VDC (Option 936) or 0 (or 4) to 20 mADC (Option 934). The
output may be changed in the field from one to the other by the toggle switch
located on the top printed circuit board.

Wire the output as shown on page 7.
949-1277-3 Page 16 December, 1998

To set up the analog retransmission, first determine the scale range that the
analog signal will represent. The maximum scale is 9999°F, 5530°C, or
9999 counts. In the Secondary Menu set POL for the scale value that will
be represented by the low end of the analog signal (0 Volts or 0 mA). Set
POH for the scale value that will be represented by the high end of the analog
signal (10 Volts or 20 mA).

If you require a suppressed scale or output, you may use the following
equations to determine the proper settings for POL and POH.

K = (Highest desired scale reading - Lowest desired scale reading) /
(Maximum desired analog signal - Minimum desired analog signal).
POH = ((Maximum possible analog output - Maximum desired analog signal)
* K) + Highest desired analog reading.
POL = Lowest desired scale reading - ((Minimum desired analog output) * K).

Next select whether you want the retransmission signal to follow the Process
Variable or the Set Variable. Usually the Process Variable is sent to recorders
or other data acquisition devices. Usually the Set Variable is sent to other
controls to be used as an analog remote set point. If you want the analog
retransmission signal to follow the PV, in the Secondary Menu set POSr to InP.
If you want the analog retransmission signal to follow the SV, set POSr to SPt.

Operation is automatic. There are no further programming steps required.

Option 948, 4-Stage Set Point.

The 4-stage set point option allows four different values to be used for SP1 and
all of the values associated with the tunE menu items. The control will switch
to a given stage when an external contact or contacts are made or opened
across the appropriate terminals at the rear of the control (when SPSA, Set
Point Switch Action, is set for remote, rE), or when the stage is selected from
the Secondary Menu, SP (when SPSA is set for Int). When the state of a
contact changes (or the stage number is changed in the Secondary Menu), the
values in use are stored and the previously stored values for the new stage are
used.

Wire the input as shown on page 7.
Usually the control is configured for external switching of the stages. In this

case, the operation is usually automatic, selected by the external switches
driven by the machine logic. If it is necessary to program the stages in advance,
you may select the stage to modify with the SP menu item. When SP is
changed while the SPSA is set for rE, the selected stage is displayed for

modification, but only used when the appropriate contact is made.
December, 1998 Page 17 949-1277-3

Option 992, 993, Serial Communication.

The serial communications options allow the control to be written to and read
from a remote computer or other similay digital device. Communication is
allowed either through a RS-485 (Option 992) port, or a RS-232 (Option 993)
port.

Wire the communication lines as shown on Page 7. Wiring for the RS-485 is
run from control to control in a daisy chain fashion with a termination resistor
(120 ohms) across the transmit and receive terminals of the last control in the
chain.

Select the control address and communication baud rate with the Addr and
bAUd menu items in the Secure Menu. THE BAUD RATE AND ADDRESS
MENU ITEMS WILL TAKE EFFECT ON THE NEXT POWER UP OF THE
CONTROL. BE SURE TO POWER CYCLE THE CONTROL BEFORE
USING THE NEW BAUD RATE AND ADDRESS.

In operation, you have the option of preventing a write command from the host
computer. To prevent the host from writing to the control change the LOrE
menu item in the Secondary Menu to LOC. To allow the host to write
commands to the control set LOrE to rE. (The host does have the ability to
change the LOrE state, but it is not automatic.)

If your system depends on constant reading or writing to and from the host, you
may wish to set the No Activity Timer (nAt) to monitor the addressing of the
control. When the LOrE is set to rE and the nAt is set to any value other than
Off, the control will expect to be addressed on a regular basis. If the control
is not addressed in the time set by the value of nAt, then the control will display
the error message CHEC LOrE. To clear the message set LOrE to LOC.

MENU SELECTIONS

PRIMARY MENU
Press INDEX to advance to the next menu item. Press UP ARROW or
DOWN ARROW to change the value in the display. Press ENTER to retain

the value. If StAt (Secondary Menu) is On, the three program status menu
items will precede the following.

#SP1 (Option 948, 4-Stage Set Point) or

SP1 Set Point 1 Adjust, Control Point 1.
SP2 Set Point 2 Adjust (if equipped), Control Point 2.

949-1277-3 Page 18 December, 1998

SECONDARY MENU

Hold UP ARROW & ENTER. Press INDEX to advance to the next menu
item. Press UP ARROW or DOWN ARROW to change the value in the
display. Press ENTER to retain the value.

A1Lo Alarm 1 Low: The Low Alarm point is usually set below the Set

Point. May not appear depending on AL1 setting in Secure Menu.

A1Hi Alarm High: The High Alarm Point is usually set above the Set

Point. May not appear depending on AL1 setting in Secure Menu.

A2Lo Alarm 2 Low: The Low Alarm point is usually set below the Set

Point. May not appear depending on AL2 setting in Secure Menu.

A2Hi Alarm 2 High: The High Alarm Point is usually set above the Set

Point. May not appear depending on AL2 setting in Secure Menu.

Out1 Output selection: Select OnOf, 1tP, 1PuL, or ProP.

ONOF A setting of ONOF allows the control to operate as a

simple on/off mode. This setting forces the control to
turn off at set point, and on at the set point plus the
differential (SP_d). When selected, the Out1/OnOF
menu item is followed by ####/SP1d, and the tunE, Pb,
rES, OFS, rtE, and ArUP selections in the Secondary
menu and the S1OL and S1OH selections in the Secure
menu are suppressed.

SP_d Set Point On-Off Differential (hysteresis). Se-

lect 1 to 9999 (direct acting), or -1 to -9999
(reverse acting). This value will be negative for
reverse acting set points, and positive for direct
acting outputs. Set the value for the amount of
difference between the turn off point (set point)
and the turn on point. The following drawing
shows output behavior for reverse and direct
action.

##tP Time Proportioning Cycle Time. Select 1tP to 80tP.

1tP A setting of 1tP is recommended for solid state

outputs (SSR or 15VDC).

2tP to 80tP Time Proportioning Control is adjustable in

1 second steps. Recommended for mechanical
outputs (relays, solenoids, etc.). For best con­tact life, a time should be selected as long as
possible without causing the process to wan­der.

#PuL Pulsed Time Proportioning Output: Select 1PuL

December, 1998 Page 19 949-1277-3

to 7PuL. 1PuL = Linear and 7PuL = most
nonlinear. Changes output linearity for use in
cooling applications or for an extremely fast
response processes. At the center of the propor­tional band, a pulse value of 1 provides an output
of one second on and one second off (50%
output). A pulse value of 2 provides an output of
one second on and two seconds off (33% output).
Output at center of band equals one second on,

(pulse value-1)

2

seconds off.

ProP For Current (Code 5) outputs only.

The following menu items apply only if your control is equipped with
a second set point (last digit of model number is not zero). If your
control does not have a second set point, jump to the "tunE" menu on
the next page.

Out2 Output selection: Select OnOf, 2tP, 2PuL, or ProP.

ONOF A setting of ONOF allows the control to operate as a

simple on/off mode. This setting forces the control to
turn off at set point, and on at the set point plus the
differential (SP2d). When selected, the Out2/OnOF
menu item is followed by ####/SP2d, and the Pb2
selection in the Secondary menu and the S2OL and

S2OH selections in the Secure menu are suppressed.

SP2d Set Point On-Off Differential (hysteresis). Se-

lect 1 to 9999 (direct acting), or -1 to -9999
(reverse acting). This value will be negative for
reverse acting set points, and positive for direct
acting outputs. Set the value for the amount of
difference between the turn off point (set point)
and the turn on point. The drawing opposite
shows output behavior for reverse and direct
action.

##tP Time Proportioning Cycle Time. Select 1tP to 80tP.

1tP A setting of 1tP is recommended for solid state

outputs (SSR or 15VDC).

949-1277-3 Page 20 December, 1998

2tP to 80tP Time Proportioning Control is adjustable in

1 second steps. Recommended for mechanical
outputs (relays, solenoids, etc.). For best con­tact life, a time should be selected as long as
possible without causing the process to wan­der.

#PuL Pulsed Time Proportioning Output: Select 1PuL

to 7PuL. 1PuL = Linear and 7PuL = most
nonlinear. Changes output linearity for use in
cooling applications or for an extremely fast
response processes. At the center of the propor­tional band, a pulse value of 1 provides an output
of one second on and one second off (50%
output). A pulse value of 2 provides an output of
one second on and two seconds off (33% output).
Output at center of band equals one second on,

(pulse value-1)

2

seconds off.

ProP For Current (Code 5) outputs only.

SP (Option 948, 4-Stage Set Point) Active Set Point Stage. Select

1SP1, 2SP1, 3SP1, 4SP1 .
1SP1 Set Menu Items to display Stage 1 for view and change

access. If SPSA is set for Int, 1SP1 is made active.

2SP1 Set Menu Items to display Stage 2 for view and change

access. If SPSA is set for Int, 2SP1 is made active.

3SP1 Set Menu Items to display Stage 3 for view and change

access. If SPSA is set for Int, 3SP1 is made active.

4SP1 Set Menu Items to display Stage 4 for view and change

access. If SPSA is set for Int, 4SP1 is made active.

#SP1 (Option 948, 4-Stage Set Point) Adjust Control Point 1 for Stage

selected above.

Note: The menu items for tunE (below) are modified when Option 948 is in
use. When Option 948 is active the menu items are preceeded with the stage
number selected in SP above. The stage number is noted here with the # sign.
When the 4 Stage Set Point option (948) is active, each stage has its own set
of tunE parameters.

#tun (Option 948, 4-Stage Set Point) or

tunE Tuning Choice: Select SELF, Pid, SLO, nor, or FASt.

SELF The Controller will evaluate the Process and select the PID

values to maintain good control. Active for SP1 only.

LErn Select YES or no

December, 1998 Page 21 949-1277-3

YES Start Learning the Process. After the

process has been learned the menu
item will revert to no.

no Learning will stay in present mode.

dFAC Damping factor, Select OFF, 1 to 7. Sets the ratio

of Rate to Reset for the SELF tunE mode. 7 =
most Rate. Factory set to 3. For a fast response
process the value should be lowered (less Rate).
For a slower process the value should be in­creased (more Rate).

Pid Manually adjust the PID values. PID control consists of

three basic parameters, Proportional Band (Gain), Reset
Time (Integral), and Rate Time (Derivative).

#Pb1 (Option 948, 4-Stage Set Point) or

Pb1 Proportional Band (Bandwidth). Select 1 to 9999

°F, °C, or counts.

Pb2 Proportional Band (Bandwidth). Select 1 to 9999

°F, °C, or counts. Appears only if control is
equipped with second set point and Out2 is NOT
selected as ONOF.

#rES (Option 948, 4-Stage Set Point) or

rES Automatic Reset Time. Select OFF, 0.1 to 99.9

minutes. Select OFF to switch to OFS.

#OFS (Option 948, 4-Stage Set Point) or

OFS Manual Offset Correction Select OFF, 0.1 to 99.9%.

Select OFF to switch to rES.

#rtE (Option 948, 4-Stage Set Point) or

rtE Rate Time. Select OFF, 0.01 to 99.99 minutes,

Derivative.

SLO PID values are preset for a slow response process.
nor PID values are preset for a normal response process.
FASt PID values are preset for a fast response process.

Pid2 Linkage of PID parameters between SP1 and SP2: Select On or

OFF.
On Applies SP1 rEs, rtE, Fbnd, and FrtE terms to SP2 for

heat/cool applications.

OFF SP2 functions without rEs, rtE, Fbnd and FrtE.

ArUP Anti- Reset Windup Feature: Select On or OFF.

On When ArUP is On the accumulated Reset Offset value

will be cleared to 0% when the process input is not within
the Proportional Band.

OFF When ArUP is OFF, the accumulated Reset Offset

Value is retained in memory when the process input is

949-1277-3 Page 22 December, 1998

not within the Proportional Band.

ArtE Approach Rate Time: Select OFF, 0.01 to 99.99 minutes. The

function defines the amount of Rate applied when the input is
outside of the Proportional Band. The ArtE time and the rtE time
are independent and have no effect on each other. To increase
damping effect and reduce overshoot set the approach rate time
for a value greater than the natural rise time of the process (natural
rise time = process value time to set point).

Fint Fuzzy Logic Intensity: Select 0 to 100%. 0% is OFF (disables Fuzzy

Logic). The function defines the amount of impact Fuzzy Logic will
have on the output.

Fbnd Fuzzy Logic Error Band: Select 0 to 4000 °F, °C, or counts. Sets the

bandwidth of the Fuzzy Logic. Set Fbnd equal to PID proportional
band (Pb1) for best results.

FrtE Fuzzy Logic Rate of Change: Select 0.00 to 99.99 counts/second.

For best initial setting, find the count/second change of process value
near set point 1 with output ON 100%. Multiply this value by 3. Set

FrtE to this calculated value.

PEA The Peak feature stores the highest input the control has measured

since the last reset or Power On. At Power On PEA is reset to the
present input. To manually reset the value PEA must be in the lower
display. Press the ENTER key to reset. PEA will be reset and display
the present input value.

UAL The Valley feature stores the lowest input the Instrument has

measured since the last reset or Power On. At Power On UAL is reset
to the present input. To manually reset the value UAL must be in the
lower display. Press the ENTER key. UAL will be reset and display
the present input value.

PctO Percent Output Feature: Select On or OFF.

On When selected On, the HOME lower display will indicate

the output of the controller in percent. An “o” will appear
in the right hand side of the lower display to indicate percent
output for SP1. An "õ" will appear on the right hand corner
of the lower display to represent percent output for SP2, if
the control is so equipped. The display will alternate
between these values.

OFF Percent Output display is disabled.

December, 1998 Page 23 949-1277-3

Prog Ramp/Soak Feature: Select On or OFF

On Allows Programmed Ramp/Soak function to be started

by the Run/Hold key on the control front panel.

OFF Turns Ramp/Soak function OFF and resets program to

beginning.

PSEt Programmer function set. Select On or OFF.

Off Skip Ramp/Soak Programming. Go to next Secondary

Menu Item, InPC on the next page.

On Enable Ramp/Soak Programming.

StAt Programmer Status Display in the Primary Menu when Prog (above)

is On: Select On or OFF.
OFF The Primary Menu operates as normal.
On The Primary Menu is altered to have the following items

inserted before the SP1 menu item: ####/ti (time
remaining in segment), ####/##ti (total time in active

segment), and ####/##SP (segment target set point).

tbAS Ramp/Soak Time Base. Select 1_S or 60_S.

1_S Ramp/Soak time base is in 1 second increments. Pro-

gram time 1ti...16ti is measured in seconds.

60_S Ramp/Soak time base is in 60 second increments (min-

utes). Program time 1ti...16ti is measured in minutes.

The following items repeat in the following order: 1ti, 1SP, 1A1 (if
alarm 1 is programmed as an event), 1A2 (if alarm 2 is programmed as
an event), 2ti, 2SP, 2A1, 2A2, . . . , 16ti, 16SP, 16A1, 16A2. To avoid

repetition each item will only be described once.

1ti Segment Time: Select 0 to 9999 units (minutes if tbaS is set to

60_S, seconds if tbaS is set to 1_S.

1SP Segment Set Point: Select value as desired.

1A1 Segment Alarm 1 Event: Select On or OFF .

On Alarm 1 is active during segment 1 time (1ti).
OFF Alarm 1 is inactive during segment 1 time (1ti).

1A2 Segment Alarm 2 Event: Select On or OFF.

On Alarm 2 is active during segment 1 time (1ti).
OFF Alarm 2 is inactive during segment time (1ti).

949-1277-3 Page 24 December, 1998

PEnd Program End action: Select Hold or OoFF.

Hold Stay at the Present Set Point (16SP).
OoFF Turn Off SP1 and SP2 Outputs at the end of the program.
LooP Repeat program starting at 1ti.
SP1 Revert to SP1 value.

InPC Input Correction: Select ±500 °F, °C, or counts. This feature allows

the input value to be changed to agree with an external reference
or to compensate for sensor error. Note: InPC is reset to zero
when the input type is changed, or when decimal position is
changed.

FiLt Digital Filter: Select OFF, 1 to 99. In some cases the time constant

of the sensor, or noise could cause the display to jump enough to
be unreadable. A setting of 2 is usually sufficient to provide enough
filtering for most cases, (2 represents approximately a 1 second
time constant). When the 0.1 degree resolution is selected this
should be increased to 4. If this value is set too high, controllability
will suffer.

LPbr Loop Break Protection: Select OFF, 1 to 9999 seconds. If, during

operation, the output is minimum (0%) or maximum (100%), and the
input moves less than 5°F (3°C) or 5 counts over the time set for LPbr,
the LOOP bAd message will appear. This condition can also be
routed to an Alarm Condition if alarms are present and turned On (see
ALbr in the secure menu). The loop break error can be reset by
pressing the ENTER key when at the LPbr menu item. The INDEX
& ENTER keys may also be used.

POL (Option 934, 936, Analog Retransmission Output) Process Output

Low: Select -450°F, -260°C, or -1999 counts to any value less than

POH.

POH (Option 934, 936, Analog Retransmission Output) Process Output

High: Select from any value greater than POL to +9999°F, +5530°C,
or 9999 counts.

POSr (Option 934, 936, Analog Retransmission Output) Process Output

Source: Select InP or SPt.

InP Process output follows the Process Variable (input).
SPt Process Output follows the Set Variable (SP1).

December, 1998 Page 25 949-1277-3

rSPt (Option 924, 926, 928, Analog Remote Set Point) Remote Set Point:

Select On or OFF.

OFF The control uses the value set for SP1.
On The control uses the value set by the analog remote set

point signal as established by the Secure Menu items
rSCL and rSCH. If the analog signal fails, the control will
display the error message CHEC/ LorE and revert to the

SP1 local value.

LOrE (Option 992, 993, Serial Communications) Local / Remote Status:

Select LOC or rE.
LOC The host computer is advised not to send remote

commands. Any write commands sent to the controls
will be rejected.

rE The host computer is allowed to send write commands.If

the control is not addressed within the time set in the nAt
(No Activity Timer, see Secure Menu) the CHEC LorE
error message will be displayed.

Addr (Option 992, Serial Communications) Control Address: Set from 1

to 3FF. This number (hexadecimal, base 16) must match the
address number used by the host computer. Viewed only in this
menu. To change this parameter, see Addr in the Secure Menu.

SECURE MENU

Hold UP ARROW & ENTER for 5 Seconds. Press INDEX to advance to the
next menu item. Press UP ARROW or DOWN ARROW to change the value
in the display. Press ENTER to retain the value.

OUTPUTS ARE DISABLED (TURNED OFF) WHILE CONTROL IS IN
SECURE MENU.

SECr Security Code: See the Security Level Selection and the Password

Table in this manual, in order to enter the correct password.

InP Input Type: Select one of the following. Refer to the Input wiring

section for the proper wiring.

J-IC Type “J” Thermocouple
CA Type “K” Thermocouple
E- Type “E” Thermocouple
t- Type “T” Thermocouple
L- Type “L” Thermocouple
n- Type “N” Thermocouple
r-13 Type “R” Thermocouple
S-10 Type “S” Thermocouple
b- Type “B” Thermocouple

949-1277-3 Page 26 December, 1998

C- Type “C” Thermocouple
P392 100 ohm Platinum (NIST 0.00392 Ω/Ω/°C)
n120 120 ohm Nickel
P385 100 ohm Platinum (DIN 0.00385 Ω/Ω/°C)
1P38 1000 ohm Platinum (DIN 0.00385 Ω/Ω/°C)
Curr DC Current Input 0.0 to 20.0 or 4.0 to 20.0 mA.
VoLt DC Voltage Input 0.0 to 10.0 or 2.0 to 10.0 volts.
diFF DC Voltage Input -10 to +10 mV.

---- Reserved

OSUP Zero Suppression: Select On or OFF. Only with Current and Voltage

input types.

OFF The input range will start at 0 (zero) Input.
On The input range will start at 4.00 mA or 2.00 V.

Unit F, C or None.

F °F descriptor is On and temperature inputs will be dis-

played in actual degrees Fahrenheit.

C °C descriptor is On and temperature inputs will be dis-

played in actual degrees Celsius.

nonE °F and °C descriptors will be Off. This is only available with

Current and Voltage Inputs.

dPt Decimal Point Positioning: Select 0, 0.0, 0.00, or 0.000. On tempera-

ture type inputs this will only effect the Process Value, SP1, SP2,
ALLo, ALHi, and InPC. For Current and Voltage Inputs all Menu
Items related to the Input will be affected.
0 No decimal Point is selected. This is available for all Input

Types.

0.0 One decimal place is available for Type J, K, E, T, L,
RTD’s, Current and Voltage Inputs.

0.00 Two decimal places is only available for Current and
Voltage Inputs.

0.000 Three decimal places is only available for Current and
Voltage inputs.

InPt Input Fault Timer: Select OFF, 0.1 to 540.0 minutes. Whenever an

Input is out of range (UFL or OFL displayed), shorted, or open the
timer will start. When the time has elapsed, the controller will revert
to a safe condition (Output Off, Flashing Display). If OFF is
selected, the Input Fault Timer will not be recognized (time =
infinite).

SEnC Sensor Rate of Change: Select OFF, 1 to 4000 °F, °C, or counts

per 1 second period. This value is usually set to be slightly greater

December, 1998 Page 27 949-1277-3

than the fastest process response expected during a 1 second
period, but measured for at least 2 seconds. If the process is faster
than this setting, the SEnC bAd error message will appear. The
outputs will then be turned off. This function can be used to detect
a runaway condition, or speed up detection of an open thermo­couple. Use the INDEX & ENTER keys to reset.

SCAL Scale Low: Select 100 to 9999 counts below SCAH. The total span

between SCAL and SCAH must be within 11998 counts. Maximum
setting range is -1999 to +9999 counts. For Current and Voltage
inputs, this will set the low range end. Viewable only for Thermo­couple and RTD ranges.

SCAH Scale High: Select 100 to 9999 counts above SCAL. The total span

between SCAL and SCAH must be within 11998 counts. Maximum
setting range is -1999 to +9999 counts. For Current and Voltage
inputs, this will set the high range end. Viewable only for Thermo­couple and RTD ranges.

SPL Set Point Low: Select from the lowest input range value to SPH

value. This will set the minimum SP1 or SP2 value that can be
entered. The value for SP1 or SP2 will not stop moving when this
value is reached.

SPH Set Point High: Select from the highest input range value to SPL

value. This will set the maximum SP1 or SP2 value that can be
entered. The value for SP1 or SP2 will not stop moving when this
value is reached.

S1St Set Point 1 State: Select dir or rE.

dir Direct Action. As the input increases the output will

increase. Most commonly used in cooling processes.

rE Reverse Action. As the input increases the output will

decrease. Most commonly used in heating processes.

If Out1 is set for ##tP, #PUL, or ProP,then S1OL and S1OH (following)
appear. If Out1 is set for ONOF, then skip to S1rE.

S1OL Set Point Output Low Limit: Select 0 to 100% but not greater than

S1OH. This item limits the lowest output value. This is useful for

adding a bias to the process when needed. Factory set to 0 for
output codes 1,2, and 3. Factory set to 20 for output code 5 (20%
output equals 4 mA output).

949-1277-3 Page 28 December, 1998

S1OH Set Point 1 Output High Limit: Select 0 to 100% but not less than

S1OL for output codes 1, 2, or 3. Select 0 to 102% but not less than
S1OL for output code 5. This item allows setting the maximum

output limit. This is useful with processes that are over powered.
Adjustment to 102% allows setting current output to force a full on
condition for output devices which do not have bias adjustments.
Factory set to 100 for all output codes.

If Out1 is set for ##tP, #PUL, or ProP,then skip to S1LP below.

S1rE Set Point 1 Reset. Select OnOF or Hold.

OnOF Control will automatically reset when process passes

back through SP1d.

HoLd Manual Reset. Reset (acknowledge) by simultaneously

pressing the INDEX & DOWN ARROW keys for 5
seconds.

S1Pi Set Point 1 Power Interrupt. Select On or OFF.

On Alarm Power Interrupt is On. Control will automatically

reset on power-up if no alarm condition exists.

OFF Alarm Power Interrupt is OFF. Control will power-up in

alarm condition regardless of condition of process.

S1iH Set Point 1 Inhibit: Select On or OFF.

On Alarm Inhibit is On. Alarm action is suspended until the

process value first enters a non-alarm condition.

OFF Alarm Inhibit is OFF.

S1LP Set Point Lamp: Select O on or OoFF.

O on Lamp ON when Output is ON.
OoFF Lamp OFF when Output is ON.

If your control is not equipped with Set Point 2, then proceed to the
alarm section (next page).

S2t Set Point 2 type: Select Abs or dE.

AbS Absolute SP2 . SP2 is independent of SP1, and may be set

anywhere between the limits of SPL and SPH.

dE Deviation SP2. SP2 is set as a deviation from SP1, and

allows SP2 to retain its relationship with SP1 when SP1 is
changed (tracking SP2).

S2St Set Point 2 State: Select dir or rE.

dir Direct Action. As the input increases the output will

December, 1998 Page 29 949-1277-3

increase. Most commonly used in cooling processes.

rE Reverse Action. As the input increases the output will

decrease. Most commonly used in heating processes.

If Out2 is set for ##tP, #PUL, or ProP,then S2OL and S2OH (following)
appear. If Out2 is set for ONOF, then skip to S2rE.

S2OL Set Point Output Low Limit: Select 0 to 100% but not greater than

S2OH. This item limits the lowest output value. This is useful for

adding a bias to the process when needed. Factory set to 0 for
output codes 1,2, and 3. Factory set to 20 for output code 5 (20%
output equals 4 mA output).

S2OH Set Point 1 Output High Limit: Select 0 to 100% but not less than

S2OL for output codes 1, 2, or 3. Select 0 to 102% but not less than
S2OL for output code 5. This item allows setting the maximum

output limit. This is useful with processes that are over powered.
Adjustment to 102% allows setting current output to force a full on
condition for output devices which do not have bias adjustments.
Factory set to 100 for all output codes.

S2rE Set Point 2 Reset. Select OnOF or Hold.

OnOF Control will automatically reset when process passes

back through SP2d.

HoLd Manual Reset. Reset (acknowledge) by simultaneously

pressing the INDEX & DOWN ARROW keys for 5
seconds.

S2Pi Set Point 2 Power Interrupt. Select On or OFF.

On Alarm Power Interrupt is On. Control will automatically

reset on power-up if no alarm condition exists.

OFF Alarm Power Interrupt is OFF. Control will power-up in

alarm condition regardless of condition of process.

S2iH Set Point 2 Inhibit: Select On or OFF.

On Alarm Inhibit is On. Alarm action is suspended until the

process value first enters a non-alarm condition.

OFF Alarm Inhibit is OFF.

S2LP Set Point 2 Lamp: Select O on or OoFF.

O on Lamp ON when Output is ON.
OoFF Lamp OFF when Output is ON.

949-1277-3 Page 30 December, 1998

ALARM TYPE AND ACTION (if present)

Caution: In any critical application where failure could
cause expensive product loss or endanger personal
safety, a redundant limit controller is required.

When setting an alarm value for an absolute alarm (A#t = AbS), simply set
the value at which the alarm is to occur.

When setting the alarm value for a deviation alarm (A#t = dE), set the
difference in value from the Set Point (SP) desired. For example if a low
alarm is required to be 5 degrees below the SP, then set A#Lo to -5. If a high
alarm is required 20 degrees above the SP, then set A#Hi to +20. If SP is
changed, the alarm will continue to hold the same relationship as originally
set.

The following diagram (below) shows the action and reset functions for both
absolute and deviation alarms.

When Alarm Power Interrupt, A#Pi, is programmed ON and Alarm Reset,
A#rE, is programmed for Hold, the alarm will automatically reset upon a
power failure and subsequent restoration if no alarm condition is present.

If Alarm Inhibit, A#iH, is selected ON, an alarm condition is suspended upon
power up until the process value passes through the alarm set point once.
Alarm inhibit can be restored as if a power up took place by pressing both
the INDEX and ENTER keys for 5 seconds.

December, 1998 Page 31 949-1277-3

Warning: If inhibit is on and a power failure occurs
during a high alarm, restoration of power will not cause
the alarm to occur if the process value does not first
drop below the high alarm setting. Do not use the Alarm
Inhibit feature if a hazard is created by this action. Be
sure to test all combinations of high and low alarm
inhibit actions before placing control into operation.

The following menu items apply only to the alarm.

AL1 Alarm 1 function: Select OFF, Lo, Hi, HiLo, or Evnt.

OFF Alarm 1 is disabled. No Alarm 1 menu items appear in

the Secondary or Secure menus.

Lo Low Alarm Only. A1Lo appears in the Secondary Menu.
Hi High Alarm Only. A1Hi appears in the Secondary Menu.
HiLo High and Low Alarms. Both A1Lo and A1Hi appear in

the Secondary Menu, and share the same Alarm 1 Relay
output.

Evnt Alarm 1 is controlled by the Ramp/Soak program func-

tion. See pages 10-13, and 20 (#A1) for further informa­tion.

If AL1 is set to OFF, go to AL2 below. If AL1 is set to Evnt, go to A1St below.

A1t Alarm 1 Type: Select AbS or dE

AbS Absolute Alarm that may be set anywhere within the

values of SCAL and SCAH and is independent of SP1.

dE Deviation Alarm that may be set as an offset from SP1.

As SP1 is changed the Alarm Point will track with SP1.
A deviation alarm will also track any active ramp or soak
set point.

A1rE Alarm 1 Reset: Select OnOF or Hold.

OnOF Automatic Reset.
Hold Manual Reset. Reset (acknowledge) by simultaneously

pressing the INDEX & DOWN ARROW keys for 5
seconds.

A1Pi Alarm 1 Power Interrupt: Select On or OFF.

On Alarm Power Interrupt is On.
OFF Alarm Power Interrupt is OFF.

A1iH Alarm 1 Inhibit: Select On or OFF.

On Alarm Inhibit is On. Alarm action is suspended until the

process value first enters a non-alarm condition.

OFF Alarm Inhibit is OFF.

949-1277-3 Page 32 December, 1998

A1St Alarm 1 Output State: Select CLOS or OPEn.

CLOS Closes Contacts at Alarm Set Point.
OPEn Opens Contacts at Alarm Set Point.

A1LP Alarm 1 Lamp: Select O on or OoFF.

O on Alarm Lamp is ON when alarm contact is closed.
OoFF Alarm Lamp is OFF when alarm contact is closed.

A1Lb Alarm 1 Loop Break. Select On or OFF.

On Loop Break Condition will cause an Alarm Condition.
OFF Loop Break will not affect the Alarm Condition.

AL2 Alarm 2 function: Select OFF, Lo, Hi, HiLo, or Evnt.

OFF Alarm 2 is disabled. No Alarm 2 menu items appear in

the Secondary or Secure menus.

Lo Low Alarm Only. A2Lo appears in the Secondary Menu.
Hi High Alarm Only. A2Hi appears in the Secondary Menu.
HiLo High and Low Alarms. Both A2Lo and A2Hi appear in

the Secondary Menu, and share the same Alarm 2 Relay
output.

Evnt Alarm 2 is controlled by the Ramp/Soak program func-

tion. See pages 10-13, and 20 (#A2) for further informa­tion.

If AL2 is set to OFF, the Secure Menu ends. If AL2 is set to Evnt, go to A2St
below.

A2t Alarm 2 Type: Select AbS or dE

AbS Absolute Alarm that may be set anywhere within the

values of SCAL and SCAH and is independent of SP1.

dE Deviation Alarm that may be set as an offset from SP1.

As SP1 is changed the Alarm Point will track with SP1.
A deviation alarm will also track any active ramp or soak
set point.

A2rE Alarm 2 Reset: Select OnOF or Hold.

OnOF Automatic Reset.
Hold Manual Reset. Reset (acknowledge) by simultaneously

pressing the INDEX & DOWN ARROW keys for 5
seconds.

A2Pi Alarm 2 Power Interrupt: Select On or OFF.

On Alarm Power Interrupt is On.
OFF Alarm Power Interrupt is OFF.

December, 1998 Page 33 949-1277-3

A2iH Alarm 2 Inhibit: Select On or OFF.

On Alarm Inhibit is On. Alarm action is suspended until the

process value first enters a non-alarm condition.

OFF Alarm Inhibit is OFF.

A2St Alarm 2 Output State: Select CLOS or OPEn.

CLOS Closes Contacts at Alarm Set Point.
OPEn Opens Contacts at Alarm Set Point.

A2LP Alarm 2 Lamp: Select O on or OoFF.

O on Alarm Lamp is ON when alarm contact is closed.
OoFF Alarm Lamp is OFF when alarm contact is closed.

A2Lb Alarm 2 Loop Break. Select On or OFF.

On Loop Break Condition will cause an Alarm Condition.
OFF Loop Break will not affect the Alarm Condition.

SPSA (Option 948, 4-Stage Set Point) Switch Action: Select rE or Int.

rE Set Point Stage selected by external contact closures.
Int Set Point Stage selected by internal menu selection. See

SP menu item in Secondary Menu.

Addr (Option 992, 993, Serial Communications) Control Address: Set

from 1 to 3FF. This number (hexadecimal, base 16) must match the
address number used by the host computer.

bAUd (Option 992, 993, Serial Communications) Communication Baud

Rate: Select 300, 1200, 2400, 4800, 9600, or 19200. This number
must match the baud rate used by the host computer.

nAt (Option 992, 993, Serial Communications) No Activity Timer: Set

from OFF or 1 to 99 minutes.
1 - 99 Maximum time between host computer accesses. If timer

counts to 0, CHEC/LorE will be displayed.

OFF No Activity Timer function is disabled.

rSCL (Option 924, 926, 928, Analog Remote Set Point) Remote Scale

Low: Select 100 to 9999 counts below rSCH. The total span between
rSCL and rSCH must be within 11998 counts. Maximum setting

range is -1999 to +9999 counts.

rSCH (Option 924, 926, 928, Analog Remote Set Point) Remote Scale

High: Select 100 to 9999 counts above rSCL. The total span between
rSCL and rSCH must be within 11998 counts. Maximum setting

range is -1999 to +9999 counts.

949-1277-3 Page 34 December, 1998

DISPLAY

DIAGNOSTIC ERROR MESSAGES

MEANING

SP OUTPUTS

ACTION REQUIRED

UFL

or

OFL

bAd

InP

OPEn

InP

LOOP

bAd

SEnC

bAd

Underflow or Over­flow: Process value
has exceeded input
range ends.

UFL or OFL will se­quence to display
one of these mes­sages if the InPt is
set for a time value.

For RTD inputs RTD
is open or shorted.

For THERMOCOU­PLE inputs thermo­couple is open.

The sensor may be
defective, heater
fuse open, heater
open, or the final
power output device
is bad.

Sensor Rate of
Change exceeded
the programmed lim­its set for SEnC.

Set point

outputs active

Alarms active

Set point

outputs
inactive

Alarms active

Set point

outputs

inactive.

Alarms active.

Set point

outputs

inactive.

Alarms Active

Input signals may normally go
above or below range ends. If
not, check input and correct.

To reset use the INDEX &
ENTER keys. When InPt (in-
put fault timer) has been set
for a time, the outputs will be
turned off after the set time.
Setting the time to OFF caus­es the outputs to remain ac­tive, however UFL or OFL will
still be displayed.
Correct or replace sensor. To
reset use the INDEX & EN-
TER keys.

Correct or replace sensor, or
any element in the control loop
that may have failed. Correct
the problem, and reset the
control by pressing the INDEX
and ENTER keys, or index to
LPbr and press ENTER.

Check for the cause of the
error. The value setting may
be too slow for the process, or
the sensor is intermittent.
Correct the problem and press
INDEX and ENTER to reset.

CHEC

CAL

Check calibration ap­pears as an alternat­ing message if the
instrument calibra­tion nears tolerance
edges.

Check calibration ap­pears as a flashing
message if the instru­ment calibration ex­ceeds specification.

Set point

outputs active

Alarms active

Set point

outputs
inactive

Alarms active

Remove the instrument for
service and / or recalibration.
To reset use the INDEX &
ENTER keys.

Remove the instrument for
service and / or recalibration.
To reset use the INDEX &
ENTER keys.

December, 1998 Page 35 949-1277-3

DISPLAY

DIAGNOSTIC ERROR MESSAGES

MEANING

SP OUTPUTS

ACTION REQUIRED

No
display
lighted

FAIL

tESt

CHEC

SP1,

CHEC

SP2,

CHEC

1SP, ...,

CHEC
16SP,

Display is blank. In­strument is not get­ting power, or the
supply voltage is too
low.

Fail test appears
upon power up if the
internal diagnostics
detect a failure. This
message may oc­cur during operation
if a failure is detect­ed. Displays flash.

This message will
appear upon power
up if SP1, SP2,
#SP1, or ##SP is
set outside of the
SPL or SPH values.

Set point

outputs inactive

Alarms inactive

Set point

outputs inactive

Alarms inactive

Set point

outputs inactive

Alarms active

Check that the power supply is
on, or that the external fuses
are good.

The display alternate between
FAIL tESt and one of the fol­lowing messages: FACt dFLt:
Memory may be corrupted.
Press the ENTER key and the
DOWN ARROW key to start
the factory default procedure.
Recheck controller program­ming. rEt FACt: Unrecover­able error, return to factory for
service.

Correct the SP1, etc. or adjust
the SPL or SPH values by
programming new values.

CHEC

SPL

or

CHEC

SPH

CHEC

rSpt

CHEC

LorE

This message ap­pears at power up if
SPL or SPH values
are programmed
outside the input
range ends.

This message ap­pears if the analog
remote set point sig­nal is out of range.

This message ap­pears if the Serial
Communications
has timed out.

Set point

outputs inactive

Alarms inactive

Set point

outputs active

Alarms inactive

Set point

outputs active

Alarms inactive

Correct the SPL or SPH val­ues by programming new val­ues.

The control will revert to SP1.
Correction of the analog sig­nal allows the control to return
to the remote

Restore the communications
line and switch the LorE to
LOC.

949-1277-3 Page 36 December, 1998

DIAGNOSTIC ERROR MESSAGES

DISPLAY

ArEA

(Alter-

nates

with PV)

ArEA

MEANING

This message ap­pears if the ambient
temperature of the
control approaches
the ends of tol­erence.

This message ap­pears if the ambi­ient temperature of
the control is out of
range or RJC sen­sor is broken.

SP OUTPUTS

Set point

outputs active

Alarm active

Set point
outputs active
Alarms active

ACTION REQUIRED

Correct the ambient tempera­ture conditions. Ventilate the
area of the cabinet or check
for clogged filters. If RJC bro­ken, return to factory for ser­vice.

Correct the ambient tempera­ture conditions. Ventilate the
area of the cabinet or check
for clogged filters. If RJC bro­ken, return to factory for ser­vice.

SPECIFICATIONS

Selectable Inputs: Thermocouple, RTD, DC Voltage, or DC Current

selectable.

Input Impedance:

Thermocouple = 3 megohms minimum. RTD current = 200 µA.
Current = 10 ohms. Voltage = 5000 ohms.

Sensor Break Protection: De-energizes control output to protect system

after customer set time. (See InPt in Secondary Menu.)

Set Point Range: Selectable (See Range Chart Page 39).
Display: Two 4 digit, 7 segment; vertical 7.62mm (0.3") high LEDs;

horizontal 10mm (0.4") high LEDs.

Control Action: Reverse (usually heating), Direct (usually cooling) select-

able.

Proportional Band: 1 to 9999 °F, °C, or counts.
Reset Time (Integral): Off or 0.1 to 99.9 minutes.
Rate Time (Derivative): Off or 0.01 to 99.99 minutes.
Cycle Rate: 1 to 80 seconds.

On - Off Differential: Adjustable 1° F, 1° C, or 1 count to full scale in 1° F,

1° C, or 1 count steps.

Alarm On - Off Differential: 1° F, 1° C, or 1 count.
Fuzzy Percent: 0 to 100%.
Fuzzy Rate: Off or 0.01 to 99.99 minutes.
Fuzzy Band: Off or 1 to 4000 °F, °C, or counts.
Accuracy: ±0.25% of span, ±1 least significant digit.

December, 1998 Page 37 949-1277-3

Resolution: 1 degree or 0.1 degree, selectable.
Line Voltage Stability: ±0.05% over the supply voltage range.
Temperature Stability: 4µV/°C (2.3 µV/°F) typical, 8 µV/°C (4.5 µV°F)

maximum (100 ppm / °C typical, 200 ppm / °C maximum).

Common Mode Rejection: 140 db minimum at 60 Hz.
Normal Mode Rejection: 65 db typical, 60 db at 60 Hz.
Isolation:

Relay and SSR outputs: 1500 VAC to all other inputs and outputs.
SP1 and SP2 Current outputs: 500 VAC to all other inputs and

outputs, but not isolated from each other,
SP1 and SP2 Switched Voltage outputs: 500 VAC to all other inputs
and outputs, but not isolated from each other.

24 VDC Loop Power: 500 VAC to all inputs and outputs.
Process Output: 500 VAC to all other inputs and outputs.

Supply Voltage: 100 to 240 VAC, nominal., +10 -15%, 50 to 400 Hz. single

phase; 132 to 240 VDC, nominal., +10 -20%.

Power Consumption: 5VA maximum.
Operating Temperature: -10 to +55 °C (+14 to 131 °F).
Storage Temperature: -40 to +80 °C (-40 to 176 °F).
Humidity Conditions: 0 to 90% up to 40 °C non-condensing 10 to 50% at

55 °C non-condensing.

Memory Backup: Nonvolatile memory. No batteries required.
Control Output Ratings:

SSR: 2.5 A @ 240 VAC at 25 °C (77°F). Derates to 1.25 A @ 55° C

(130°F).
Relay: SPDT, 10 A @ 240 VAC resistive; 1/4 hp @ 120 VAC, 1/3 hp

@ 240 VAC.
Alarm Relay: SPST, 3 A @ 240 VAC resistive; 1.5 A @ 240 VAC
inductive; Pilot Duty Rating: 240 VA, 2 A @ 125 VAC or 1 A @ 240
VAC.

Current (isolated): 0 to 20 mA across 600 ohms maximum.
Switched Voltage (isolated): 15 VDC @ 20 mA.

Loop Power Supply (isolated): 24VDC @ 50mA, regulated.
Panel Cutout: 92 mm x 45 mm (3.625" x 1.775").
Depth Behind Mounting Surface: 103 mm (4.0").
Weight: 369 g (13 oz).
Agency Approvals: CE, UL E87325
Front Panel Rating: Type 4X, (IP66).

949-1277-3 Page 38 December, 1998

Input Ranges (Field Selectable)

Thermocouple T ypes

Input
Type

Range

1°F

1°C

Input
Type

Range

1°F

1°C

Input
Type

Range

1°F

1°C

Type J or L*

-100 to +1600

-73 to +871

Type R

0 to 3200

-17 to +1760

Type N*

-100 to +2372

-73 to +1300

Type K*

-200 to +2500

-129 to +1371

Type S

0 to 3200

-17 to +1760

* These Input Types can be set for 0.1° display.
If temperature goes above 999.9° or less than

-199.9° the display will return to whole degree
resolution.

Type T*

-350 to +750

-212 to +398

Type B

-100 to +2372

-73 to +1300

Type E*

-100 to +1800

-73 to +982

Type C

-100 to +2372

-73 to +1300

RTD Types

Input
Type

Range

1°F

1°C

100 Ohm

Platinum

0.00385 DIN
Curve*

-328 to +1607

-200 to +875

100 Ohm

Platinum

0.00392 Nist
Curve*

-328 to +1607

-200 to +875

120 Ohm

Nickel

0.00628 US
Ind. Curve*

-112 to +608

-80 to +320

1000 Ohm

Platinum

0.00385 Nist
Curve*

-328 to +1607

-200 to +875

Process Input Types

The 0 to 20 mADC, 4 to 20 mADC, 0 to 10 VDC, 2 to 10 VDC, and -10 to
+10 mVDC inputs are fully scalable from a minimum of 100 counts span
placed anywhere within the within the range of -1999 to +9999. Decimal
point position is adjustable from the zero place (9999), tenths (999.9),
hundredths (99.99), thousandths (9.999), or ten thousandths (.9999).

December, 1998 Page 39 949-1277-3

DIMENSIONS

LOVE CONTROLS DIVISION

Dwyer Instruments, Incorporated

®

949-1277-3 Page 40 December, 1998

PO Box 338 Michigan City, IN 46361-0338

[phone] [phone] FAX [phone]

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www.love-controls.com

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