Tr32T(i) Controller .pdf

TR32T(I) SERIES II
CONTROLLER
INSTRUCTION MANUAL

TEMPATRON LTD, 5 DARWIN CLOSE READING, BERKSHIRE, RG2
TEL: 0734 314062 or 0734 750099,
FAX: 0734 750057

0TB

TR32T (I) SERIES II CONTROLLER
INDEX
Page No.
1.

INTRODUCTION

2

1.1

2

Key Features

2.

FRONT PANEL FUNCTIONS

2

3.

PROGRAM PARAMETERS

3

3.1.

User Parameter List

3

3.2.

Installer Parameter List

3

4.

5.

6.

SET-UPPROCEDURE

4

4.1.

Start-Up Sequence

4

4.2.

Displaying Set-Point

4

4.3.

Adjusting Set-Point

4

4.4.

Viewing User Parameters

4

4.5.

Adjusting User Parameters

4

4.6.

User Parameter Ranges

4

4.7.

Viewing Installer Parameters

4

4.8.

Adjusting Installer Parameters

5

4.9.

Installer Parameter Settings

5

4.9.1.

Probe & Display Parameters

5

4.9.2.

Control Parameters

6

4.9.3.

Overload Protection Parameters

6

4.9.4.

Alarm Parameters

6

4.9.5.

Communications Parameters

7

FAULT CONDITIONS AND REMEDIES

7

5.1.

Alarm Messages

7

5.2.

Autotest Procedure

7

5.3.

Remedies

7

SPECIFICATIONS

8

6.1.

Electrical Characteristics

8

6.2.

Connection Details

8

6.3.

Dimensions

8

7.

ORDERINGCODE

8

8.

DEFAULTPARAMETERS

9

Page 1

TR32T(I) SERIES II CONTROLLER
1. INTRODUCTION
The TR32T is a microprocessor based, On/Off, Thermostat which may be programmed to operate in either
Heat or Cool mode. As part of the same series, the TR32I is a 4-20mA input version. Two sets of parameters can
be programmed, one for the user and the other for the installer, so that on-line adjustments are easily made. The
flexibility of this tiny controller can only be appreciated by scrolling through the parameter map to see how
control mode, input type, Set-Point limits, overload protection and alarm functions may be set to give accurate,
optimised performance; protected from those inevitable operator errors.
1.1. KEYFEATURES
. Heat or Cool Action
. Error Messages
. Programmable Hysteresis
. Programmable Alarms

. Set-Point Limits
. Audible Alarm Signal
. Overload Protection
. RS232/422 Comms. option

. Audible Confirmation of Key Press
. Programmable Noise Filter
. Analogue input option
. Dual Alarm Functions

2. FRONT PANEL FUNCTIONS

1

UPKEY:

a) Increments a selected digit of the display
b) Scrolls through the program parameters
c) Combined with DOWN key, provides access to program parameters

2

DOWN/MUTE:
KEY
mute

a) Decrements a selected digit of the display
b) Reverse scrolls through the program parameters
c) Combined with UP key, provides access to program parameters
d) Turns off Alarm Buzzer

3

SETKEY:

a) Enables adjustment of Set -Point
b) Enables adjustment of program variables via the UP & DOWN keys

SET
4

OP1 LED:

a) Illuminates when Output 1 is energised
b) Flashes when adjusting value of Set-Point

5

DP LED:

Illuminates when decimal point resolution is selected

6

DISPLAY:

3 digit, led display showing: a) Process Variable (PV)
b) Set-Point (SP)
c) Parameter Codes
d) Parameter variables
e) Alarm messages

Page
2

3. PROGRAM PARAMETERS
The program parameters are divided into two parts; User and Installer. The User parameters are
whereas the Installer parameters can only be accessed via a password.

easily accessible

3.1. USER PARAMETER LIST
Code

Description

Comment

PA

Password

Enables access to Installer parameters (-19). Any other number set for this
parameter will revert to 0 (the default value) when PA is deselected.

/1

Calibration (offset)

Used to compensate for probe or other sytem errors

rA0

Output 1 Hysteresis

Sets the switching differential around Set-Point

3.2. INSTALLER PARAMETER LIST
Parameter Group

Code

Description

Probe & Display

/0

Probe type

/1

Calibration (offset) error compensation

/2

Digital Noise Filter

/4

Leading Zero Suppression

/5

Decimal Point Selection

/6

Analogue Input Low Value Scaling

/7

Analogue Input High Value Scaling

Control

Overload Protection

Alarm(Buzzer)

Communications

rA0

Control Hysteresis for output

rA1

Lower Set-Point Limit

rA2

Upper Set-Point Limit

rA3

Control Action (Reverse or Direct)

rA4

Hysteresis Action (Symmetric/Asymmetric)

rA5

Set-Point Lockout

CA0

Delay to Output after Start-Up

CA1

Minimum Time between Starts

CA2

Minimum Off Time

CA3

Relay Status at Failure

CA4

Output Relay Protection

Alarm 1

Alarm 2

AA0

Ab0

Alarm Hysteresis

AA1

Ab1

Alarm Set Point

AA3

Ab3

Alarm Delay after Power Up or Set-Point Adjustment

AA4

Ab4

Alarm Type

L1

Instrument Network Address

L2

Not Used

Page 3

4. SET-UPPROCEDURE
4.1. START UP SEQUENCE
On application of supply, the instrument goes through a start up procedure which takes upto 4 seconds to
complete. During this time the output is de-energised, all segments of the display flash, the key pads are
disabled and the default conditions are loaded. The controller then reads the process temperature or, in the case
of TR32I, the Process Value (PV).
4.2. DISPLAYING THE SET-POINT

. Press and hold SET key: Display Shows Set Point (SP) and led OP1 flashes.
. Release SET key to return to Process Variable(PV)
4.3. ADJUSTING THE SET-POINT
. Press and hold SET key, then adjust Set-Point by pressing UP or DOWN key.
. Release SET key to return to PV.
4.4. VIEWINGUSERPARAMETERS
. Press and hold UP and DOWN keys simultaneously for 4 seconds: Display shows PA.
. Press and hold SET key to read the value of PA, then release SET key.
. Press UP key to scroll, or DOWN key to reverse scroll, through parameters /1, rA0 and PA and use SET key to
read parameter value (Note: Hold UP or DOWN key to scroll rapidly (2 prameters/sec)).
. Press and hold UP and DOWN keys simultaneously for 4 seconds (or do not touch any key for 50 secs) to
return to Process Variable (PV).
4.5. ADJUSTING USER PARAMETERS
. Press and hold UP and DOWN keys simultaneously for 4 seconds: Display shows PA.
. Press UP key to scroll or DOWN key to reverse scroll through paremeters /1, rA0 and PA.
. Press and hold SET key to read parameter value, then press UP or DOWN key to adjust it. Release SET key
(Note: Hold UP or DOWN key to adjust value rapidly (5 digits/sec)).
. Press and hold UP and DOWN keys simultaneously for 4 seconds (or do not touch any key for 50 secs) to
return to Process Variable (PV).
4.6. USERPARAMETERRANGES
Parameter
Group

Parameter
Range

Description

Comments

PA

-99 to 999
(or probe limit)

Password Code

It is not necessary to change this code to access
the User parameters.

/1

-9 to +10 oC

Calibration (offset)

Adjust this value to compensate for probe errors

rA0

o

-99 to +99 C

Hysteresis (Control O/P 1)

Note: For 0/4-20mA input versions, Calibration and Hysteresis values, will be in units instead oC.
4.7. VIEWINGINSTALLERPARAMETERS
. Press and hold UP and DOWN keys simultaneously for 4 seconds: Display shows PA.
. Press and hold SET key and, using DOWN key, adjust value to -19.
. Release SET key: Display returns to PA.
. Press and hold UP and DOWN keys simultaneously for 4 seconds: Display shows /0.
. Press and hold SET key to read the value of /0, then release SET key.
. Press UP key to scroll, or DOWN key to reverse scroll, through parameters /0, /1, /2, ... L1and L1, then
use SET key to read parameter value (Note: Hold UP or DOWN key to scroll rapidly (2 parameters/sec)).
. Press and hold UP and DOWN keys simultaneously for 4 seconds (or do not touch any key for 50 secs)
to return to Process Variable (PV).

Page 4

4.8. ADJUSTING INSTALLER PARAMETERS
. Press and hold UP and DOWN keys simultaneously for 4 seconds: Display shows PA.
. Press and hold SET key and, using DOWN key, adjust value to -19.
. Release SET key: Display returns to PA.
. Press and hold UP and DOWN keys simultaneously for 4 seconds: Display shows - 0.
. Press UP key to scroll, and DOWN key to reverse scroll, through and select parameters /0, /1, /2, ..., L1 or L2
(Note: Hold UP or DOWN key to scroll rapidly (2 parameters/sec)).
. Press and hold SET key to read parameter value, then press UP or DOWN key to adjust it (Note: Hold UP or
DOWN key to adjust value rapidly (5 digits/sec)).. Release SET key.
. Press and hold UP and DOWN keys simultaneously for 4 seconds (or do not touch any key for 50 secs) to
return to Process Variable (PV).
4.9. INSTALLERPARAMETERSETTINGS

4.9.1. PROBE & DISPLAY PARAMETERS
Parameter Group

Probe & Display

Group
Code

SubGroup

Sub-Group
Code

/0

Probe
Type

/1

Calibration

/2

Digital
Filter

/4

Parameter/
Range/Value

Probe Range

PTC
NTC
J T/couple
K T/couple
PT100(3 wire)
PT100(2 wire)
4 - 20mA
0 - 20mA

-50 to 150oC
-40 to 110oC
-100 to 700oC,
-100 to 1100oC
-100 to 600oC
-100 to 600oC
4 to 20mA
0 to 20mA

-9.0 to 10.0oC

Use this to offset probe or sytem errors.

0
1
2
3
4
5
6

0.0 sec
0.4 sec
1.2 secs
2.8 secs
6.0 secs
12.4 secs
25.2 secs

This time constant determines the instrument's
effectiveness against electrical noise. It also effects
the speed of response to signal changes at the probe.
The higher the value the better the noise immunity,
but the lower the value the quicker the response.
A compromise must be made according to the
application conditions.

Zero
Suppression

0
1

No lead zeros
Lead zeros

With this parameter a PV of 35oC will be displayed
as 35 for a code 0; and 035 for code 1.

/5
Point

Decimal
1

0
No Dec. Point.
Dec. Point.

/6

Low Value
Scaling

-99 to 999
units

This parameter sets the display scale for 0mA or 4mA
on 0-20mA and 4-20mA analogue inputs respectively.

/7

High Value
Scaling

-99 to 999
units

This parameter sets the display scale for 20mA on
0-20mA and 4-20mA analogue inputs.

1
3
10
11
20
21
30
31

Comment
All instruments are dual input types
i.e. PTC/NTC, PT100 2/3 wire, J/K
T/Couple & 0/4 - 20mA and are
programmable for either input.
Probe alarms are set 10% outside the
probe ranges.
Probe ranges outside the display
limits will be restricted to -99 & 999.

This parameter provides a display of upto one decimal
place. It is not available for T/couple or oF models.

Page 5

-

4.9.2. CONTROL PARAMETERS
Parameter Group
Group Code
Control

Control
Group

Parameter
Function

Parameter/
Code

rA0

Hysteresis

-99 to 99 oC

rA1

Lower Set-Point Limit

-99 to 999 oC

rA2

Upper Set-Point Limit

rA3

Control Action

rA4
rA5

o

Comments
Range
These values are limited to the

-99 to 999 C

probe range

0
1

Direct
Reverse

Generally applies to Cooling
Generally applies to heating

Hysteresis Action

0
1

Asymetric about SP
Symetric about SP

Set-Point Lockout

0
1

Adjustable SP
SP not adjustable

4.9.3. OVERLOAD PROTECTION PARAMETERS
Parameter Group

Overload Protection

Group Code
Control

Group
Function

Parameter
Code/Range

CA0

Delay to Output after Start-Up

0 to 999 secs
This enables more instruments and loads
to be connected to a supply line, without
overload , by sequencing starts.

CA1

Minimum Time between Starts

0 to 999 secs

This delay limits starts per hour.

CA2

Minimum Output Off Time

0 to 999 secs

This delay prevents hunting.

CA3

Relay Status at Failure

0 = OFF
1 = ON

This parameter sets the output relay
status when a probe error occurs.

CA4

Output Relay Protection

0 = No Delay
1 = 3.5 secs

When set to 1 this parameter prevents
output relay chatter.

Comments

4.9.4. ALARMPARAMETERS
Parameter Group

Alarm (Buzzer)

Group Code
Group
Cntrl 1 Cntrl 2 Function

Sub-Group
Code

Parameter/
Range

Comments

AA0

Ab0

Hysteresis

0.1 to 99.0 oC

This sets the differential range over which the
alarm is active.

AA1

Ab1

Set-Point

-99 to 999 oC

Defines the value at which the alarm turns on

AA3

Ab3

Alarm Delay

0 to 999 mins.

Delays the alarm activation after Start-Up or
after change of Control Set-Point.

AA4

Ab4

Alarm Type

1
2

No Alarm
Absolute Min.

3

Absolute Max.

4

Relative Min.

5

Relative Max.

6

Relative Min.
(Computed)
Relative Max.
(Computed)

Disables Alarm functions.
Active when input is < Alarm Set-Point (ASP)
until input is > ASP + Alarm Hysteresis (AH).
Active when input is > Alarm Set-Point (ASP)
until input is < ASP - AH.
Active when input is < ASP + Control Set-Point
(SP) until input is > ASP + SP +AH.
Active when input is > ASP + SP until input is
< ASP + SP - AH.
Code 6 & 7 operate as code 4 & 5 respectively,
except at Start-Up or change of Control SP. In
these cases, if PV is within the alarm condition,
A new alarm trigger point = PVo + ASP is
computed until PV next passed through the SP.

7

Note: The buzzer may be silenced with the MUTE key, whilst leaving the alarm message displayed. Page 6

4.9.5. COMMUNICATIONSPARAMETERS

heWhen
Parameter Group

Communications

Code

Parameter

Range

Comments

L1

Network Address for Instrument

1 to 15

Upto eight instruments may be addressed but any
code from 1 to 15 may be used for any instrument.

L2

Unused parameter

1 to 7

5. FAULT CONDITIONS AND REMEDIES
5.1. ALARM MESSAGES
Apart from the messages which are displayed when the buzzer is activated, there are some 'system check' alarms
to provide assurance of instrument integrity. In all alarm conditions (except priority 0) the buzzer is activated, an
error message appears and the output is put into a safe condition as shown in the chart below:Display

Priority

Output Status

Error Condition

-99 or 999 flashing.

0

No change

Input is out of display range

E2 flashing

1

OP1 off

EEPROM error

E0 flashing

2

See CA3 setting

Wrong PTC, NTC, 2 wire PT100 or open circuit

EOC flashing

3

As for EO

Wrong T/Couple, 3 wire PT100 or cold jun. error

AL1 alternating with PV

4

According to Set-Up

PV has satisfied AA* conditions.

AL2 alternating with PV

5

According to Set-Up

PV has satisfied Ab* conditions.

Note: The alarm error code will remain for about 3 seconds after the fault is remedied.
5.2. AUTOTESTPROCEDURE
This procedure can be carried out, after the supply is disconnected, and serves to provide a check of functionality
of the KEYS, INPUTS and OUTPUTS plus the integrity of the DISPLAY segments. The procedure is as follows:. Press and hold SET key.
. Switch on Power to the Instrument.
. Release SET key within 4 seconds (otherwise the Start-Up procedure will complete first).
. After 4 seconds the OP1 led only will light.
. Press SET key. Display moves to first segment of right hand digit.
. Repeat press SET key to check remaining display segments. During the first few presses of SET key the Outputs
will switch on and off as they are tested.
. Continue pressing SET key to repeat Autotest or press DOWN key to return to start of Autotest.
. To exit Autotest either Press UP key or switch Off or wait 50 seconds for the reset time.
5.3. REMEDIES
Alarm Condition

Cause

Remedy

-99 or 999 flashing

. Unsettled probe connection
. Wrong type of probe
. Calibration(/1) value incorrect
. Wrong Probe selection at /0

Check probe wiring.
Change to correct probe.
Change parameter value.
Change parameter code.

EO flashing

. Wrong Probe selection at /0
. Short or Open circuit probe

Change parameter code (NTC/PTC/PT100-2 wire).
Check connections or probe.

EOC flashing

. PT100 3rd wire not connected
. T/Couple cold junction error.
. Input out of T/Couple range

Add wire, check resist. < 20 W, use 2 wire PT100.
Check wiring and connections.
Change to alternative model.

E2 flashing

. EEPROM data cannot be read
. EEPROM data corrupted
. Programing error

Switch instrument Off & On a few times.
Contact nearest dealer.
Check program parameters.

AL1 or AL2

. Alarm condition satisfied

Check application operation or parameters AA/Ab.

No OUTPUT

. Relays do not operate

Check CA0 - CA3, Autotest.

DISPLAY error

. Wrong parameter or faulty Instrument

Check parameters, Autotest or change Instrument.

Note: If errors cannot be corrected after repeated attempts, contact Tempatron Ltd or your local Agent

Page 7

6. SPECIFICATIONS
6.1.ELECTRICAL CHARACTERISTICS
Power Supply:

12Vac/dc ( 24Vac/dc or 230Vac on request).

Power Consumption:

120mA @ 12Vac.

Operating Temperature:

0 to 60oC

Storage Temperature:

-25 to 70oC

Input Types:

See Page 5 'Probe and Display Parameters'.

Output Ratings:

OP1:SPDT Relay rated at 8 Amps resistive @ 240Vac.

Probe Linearisation:

+/- 0.5% of full scale +/- 0.2.

Display Resolution:

1oC or 0.1oC according to decimal point selection.

Communications:

Optional Seriel Port for RS232C or RS422 via Comms Modules.

Probe Reference Supply:

25mA @ 12Vdc

6.2.CONNECTION DETAIL

6.3.DIMENSIONS

7. ORDERINGCODE

J/

TR32TB3912

NTC (or PTC)

TR32T13R12

PT100 (2 or 3 wire) Type

TR32TJ3R12

J or K T/Couple Type

TR32I03012

0 -20mA or 4 to 20mA Type

Page 8