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red lion TLA, User Manual

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10

LIMIT OUTPUT ACTION

The limit output is selectable for high or low trip activation. If the process 

temperature goes above the limit setpoint for a high trip, or below the limit 

setpoint for a low trip, the limit relay will de-energize to initiate a process 

shutdown. The limit output cannot be reset until the process temperature returns 

to the proper operating range; manual reset is required. The following action 

figures describe the status of the limit output and the front panel indicators for 

various over/under setpoint, and reset conditions. Reset is either by the front 

panel R button, if enabled, or by the Remote Reset input, terminal #6. Refer to 

Configure Module 2 - Output Parameters for details of configuring the limit 

output. Refer to Configure Module 3 - Lockout Parameters for details of 

configuring the front panel Reset button.

Process Temp

Annunciator

Annunciator

Limit

Output

OUT

Setpoint

Reset

EXceed

OFF

OFF

OFF

Energized

De-energized

ON

ON

ON

OFF

OFF

ON

OFF

Energized

High Trip Action

Low Trip Action

5.0 A

LARMS

 (O

PTIONAL

)

The alarm action figures describe the status of the alarm output and the front 

panel indicator for various over/under temperature conditions. The alarm output 

wave form is shown with the output in the automatic reset mode. Select the 

alarm action with care -- in some configurations, the front panel indicator (LED) 

might be OFF while the output is ON. Refer to Configure Module 4 - Alarm 

Parameters for details of configuring the alarms.

OUTPUT OFF

LED OFF

OUTPUT ON

LED ON

OUTPUT OFF

LED OFF

OUTPUT ON

LED ON

TEMP

ABSOLUTE HIGH-ACTING ALARM (A-HI)

AL

HYS

Setpoint

Reset

Annunciator

Limit

Output

OUT

EXceed

Annunciator

Process Temp

Energized

OFF

OFF

OFF

De-energized

ON

ON

ON

ON

OFF

OFF

Energized

OFF

AL

ABSOLUTE LOW-ACTING ALARM (A-LO)

TEMP

LED ON

OUTPUT ON

LED OFF

OUTPUT OFF

LED ON

OUTPUT ON

LED OFF

OUTPUT OFF

HYS

OUTPUT OFF

LED OFF

OUTPUT ON

LED ON

OUTPUT OFF

LED OFF

OUTPUT ON

LED ON

INPUT

DEVIATION HIGH-ACTING WITH POSITIVE ALARM VALUE (d-HI)

SP + AL

SP

HYS

SP + (-AL)

DEVIATION HIGH-ACTING WITH NEGATIVE ALARM VALUE (d-HI)

INPUT

LED OFF

OUTPUT ON

LED ON

OUTPUT OFF

SP

HYS

OUTPUT ON

LED OFF

OUTPUT OFF

LED ON

Summary of Contents for TLA

Page 1: ...to activate according to a variety of actions Absolute HI or LO Deviation HI or LO and Band IN or OUT with adjustable hysteresis A standby feature suppresses the alarm during power up until the process stabilizes outside the alarm region The unit is constructed of a lightweight high impact plastic case with a tinted front panel The front panel meets NEMA 4X IP65 specifications when properly instal...

Page 2: ...nel latch Panel latch can be installed for vertical or horizontal instrument stacking One piece tinted plastic bezel Bezel assembly with circuit boards can be removed from the case to change the output board without removing the case from the panel or disconnecting wiring Unit meets NEMA 4X IP65 requirements for indoor use when properly installed Flame resistant Installation Category II Pollution ...

Page 3: ...ded This is especially useful in applications where cable runs are long and portable two way radios are used in close proximity or if the installation is near a commercial radio transmitter Also Signal or Control cables within an enclosure should be routed as far away as possible from contactors control relays transformers and other noisy components 4 Long cable runs are more susceptible to EMI pi...

Page 4: ... ventilation to ensure that the maximum operating temperature range is not exceeded Caution Disconnect power to the unit and to the output control circuits to eliminate the potential shock hazard when removing the bezel assembly Unit Removal Procedure To remove a unit from the panel first loosen the panel latch screws Insert flat blade screwdrivers between the latch and the case on either side of ...

Page 5: ...ging applications two or more thermocouple probes may be connected to the TLA always use the same type Paralleling a single thermocouple to more than one TLA is not recommended Generally the red wire from the thermocouple is negative and connected to the TLA s common RTD When connecting the RTD be certain that the connections are clean and tight RTD sensors have a higher degree of accuracy and sta...

Page 6: ...ode In this mode the process temperature is displayed in the main top display and the limit setpoint is displayed in the secondary bottom display When changes to the parameter configurations are needed the P button is pressed and the TLA will enter into the Parameter Mode PARAMETER CONFIGURATION BASIC STARTUP For basic start up it is important to verify or change Input Parameter Module 1 IN parame...

Page 7: ...egree resolution If changed be sure to check all parameters FLtr Digital Input Filtering and Display Update Select the relative degree of input signal filtering and display update rate The filter is an adaptive digital filter that discriminates between measurement noise and actual process changes Therefore the influence on step response time is minimal If the signal is varying too greatly due to m...

Page 8: ...n low acting with positive alarm value d LO deviation high acting with negative value d HI or band inside acting b IN is selected for the alarm action the indicator is OFF when the alarm output is ON See the Alarms section for complete details of each action If changed check alarm values The alarm values are either absolute values or relative to the limit setpoint value deviation and band alarms A...

Page 9: ...r this flag perform calibration procedure as noted in the Calibration section Alternatively stepping through one of the calibration procedures clears the error flag but does NOT validate the calibration accuracy in any manner USER PARAMETER VALUE CHART TLA Number _____________ MNEMONIC PARAMETER USER SETTING Limit Setpoint Alarm 2 Value Password Alarm 1 Value Input Parameters MNEMONIC PARAMETER US...

Page 10: ... ON OFF Energized High Trip Action Low Trip Action 5 0 Alarms Optional The alarm action figures describe the status of the alarm output and the front panel indicator for various over under temperature conditions The alarm output wave form is shown with the output in the automatic reset mode Select the alarm action with care in some configurations the front panel indicator LED might be OFF while th...

Page 11: ...e The TLA display should equal the calibrated probe temperature Tolerance is 1ºC 4 Calibrate the cold junction temperature if out of tolerance RTD Ohms Reading Check 1 Connect RTD simulator with an accuracy of 0 1 ohm or better capable of operating with less than 150 µA to terminals 8 9 10 2 Configure Input Parameters Module 1 for linear ohms rLin input under tYPE 3 Compare the TLA read out with t...

Page 12: ...rm up period before starting this procedure Do not use thermocouple wire for the millivolt or RTD ohms calibration This procedure may be aborted by disconnecting power to the TLA before exiting the configuration mode The existing calibration settings remain in affect Note After completing any of the calibration sequences the TLA defaults the input sensor type to thermocouple type J tc J Be sure to...

Page 13: ...ISPLAY 1 Input is below range of TLA 2 Temperature below range of input probe 3 Defective or incorrect transmitter or probe 4 Excessive low temperature for probe 5 Loss of setup parameters OLOL OR ULUL IN LOWER DISPLAY 1 Signal input exceeds allowable range by 5 1 Check remote signal source 1 Check input parameters 2 Change to input sensor with a lower temperature range 3 Replace transmitter or pr...

Page 14: ...t Board RBDLA210 AL1 LIMIT E B 0 7 8 4 MD1797 A2 A1 OUT EX P OUTPUT BOARD POWER CPU BOARD SUPPLY BOARD OUTPUT BOARD CONNECTOR BEZEL DISPLAY BOARD ASSEMBLY BEZEL BOARD LATCH DISPLAY BOARD CONNECTOR 9 0 Terminal Configurations 50 60 HZ 8VA 14 12 85 250 VAC AC 1 A2 N O 13 COMM COMM A1 N O LIMIT RELAY ALARM RELAYS 4 N O 5 AC 11 2 3 6 REMOTE RESET 9 TC 10 RTD 8 7 COMM 50 60 HZ 9VA AC 24V 10 DC 18 36V 7...

Page 15: ...15 This page intentionally left blank ...

Page 16: ...h Buyer its employees or sub contractors are or may be to any extent liable including without limitation penalties imposed by the Consumer Product Safety Act P L 92 573 and liability imposed upon any person pursuant to the Magnuson Moss Warranty Act P L 93 637 as now in effect or as amended hereafter No warranties expressed or implied are created with respect to The Company s products except those...

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