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General Monitors TA502A Instruction Manual

Zero two series generic trip amplifier module
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Model TA502A
Zero Two Series Generic
Trip Amplifier Module
The information and technical data disclosed in
this document may be used and disseminated
only for the purposes and to the extent
specifically authorized in writing by General
Monitors.
Instruction Manual
09/12
General Monitors reserves the right to change
published specifications and designs without
prior notice.
MANTA502A
Part No.
MANTA502A
Revision
H/09-12

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Summary of Contents for General Monitors TA502A

  • Page 1 General Monitors. Instruction Manual 09/12 General Monitors reserves the right to change published specifications and designs without prior notice. MANTA502A Part No. MANTA502A...
  • Page 2 Model TA502A This page is intentionally left blank.

  • Page 3: Warranty Statement

    General Monitors for damages including, but not limited to, consequential damages arising out of/or in connection with the use or performance of the product.

  • Page 4: System Integrity Verification

    Model TA502A System Integrity Verification General Monitors’ mission is to benefit society by providing solutions through industry leading safety products, services and systems that save lives and protect capital resources from the dangers of hazardous flames, gases and vapors. The safety products you have purchased should be handled carefully and installed, calibrated and maintained in accordance with the respective product instruction manual.
  • Page 5 Model TA502A When testing produces results outside of the manufacturers’ specifications, re- calibration or repair/replacement of the suspect device(s) should be performed as necessary. Calibration intervals should be independently established through a documented procedure, including a calibration log maintained by plant personnel or...

  • Page 6: Table Of Contents

    LIST OF TABLES ........................IX Mount and Wire the Card and Card Rack.................. x Wire Field Devices ........................xi Rear Terminal Designations ....................xii Wire Outputs of Model TA502A ....................xiii Apply Power ..........................1 1.0 INTRODUCTION ........................2 General Description ........................2 Features &...
  • Page 7 Model TA502A Types of User Interfaces ......................19 Setup Check & Setup Modes ....................19 Setup Mode Selection Table ....................21 Entering the Setup Check Mode ....................22 4.4.1 Entering the Password ....................22 4.4.2 Entering the Inhibit Mode .................... 23 4.4.3...

  • Page 8: List Of Figures

    Figure 3: Outline Drawing ............................xi Figure 4: Wire Strip Length ............................. xi Figure 5: Rear Terminal Designations ........................xii Figure 6: TA502A Inter-Connections ........................xii Figure 7: Relay Protection Circuits ........................xiii Figure 8: External Test Circuits for Open Collectors .................... xiii Figure 9: Power Connections Rear Chassis ......................
  • Page 9 Table 9: Card Test Input ............................11 Table 10: Analog Signal Output ..........................11 Table 11: TA502A Operating Modes ........................16 Table 12: TA502A Ultrasonic Gas leak Detectors Operating Modes ..............17 Table 13: Setup Mode Selection Table ........................ 21 Table 14: Cable Lengths ............................35...

  • Page 10: Mount And Wire The Card And Card Rack

    Model TA502A Quick Start Guide Mount and Wire the Card and Card Rack. A rack or panel mounted chassis will be required when installing any Zero Two Series Module. The chassis should be mounted in non-hazardous, weather-protected locations and should be subjected to minimal shock and vibrations. The rack and panel mounted chassis are available in 2-, 4-, 8-, and 16-channel sizes.

  • Page 11: Wire Field Devices

    Wire Field Devices All wire connections to the Model TA502A are made to the terminal block located at the rear of the chassis. The terminal block accepts 16 AWG to 20 AWG, stranded or solid-core wire. 14 AWG wire may be used if it is properly stripped as shown in Figure 4.

  • Page 12: Rear Terminal Designations

    Model TA502A Quick Start Guide To connect wires to the terminal block on the Model TA502A, loosen the desired screw, insert the stripped end of the wire, and tighten. Gently tug on the wire to ensure it is securely fastened.

  • Page 13: Wire Outputs Of Model Ta502A

    Model TA502A Quick Start Guide NOTE: Only one Field Transmitter may be connected to a Model TA502A. 4- conductor cable is recommended if cable length is greater than 400 ft. See Device Instruction Manual for connecting other Field Devices. NOTE: Many new devices have HART installed. For these devices the HART option should be disabled (see individual device manual for instruction) when interfacing with the TA502A.

  • Page 14: Apply Power

    NOTE: If the application of power does not turn the Model TA502A ‘ON’, check Fuse F1. PRIMARY INPUT POWER POS (+)

  • Page 15: Introduction

    Zero Two Series. It is distinguished from the other modules by its gray border and “TA502A” in the upper right corner of the front panel. The Model TA502A is designed for use in non- hazardous environments.

  • Page 16: Features & Benefits

    Allows the user to insert or remove a module, while power is applied to the system, without damage to any of the components in the system. Ultrasonic Gas Leak Detectors Mode Allows the TA502A to be used with the Gassonic Observer-Series and Surveyor Ultrasonic Gas Leak Detectors.

  • Page 17: Applications

    Model TA502A TS400 Mode Allows the TA502A to be used with the Model TS400 Toxic Gas Detector. TS420 Mode Allows the TA502A to be used with the Model TS420 Oxygen Deficiency Gas Detector. Applications The General Monitors Model TA502A is a Generic Trip Amplifier designed for use with the Zero Two Series.

  • Page 18: Installation

    Model TA502A 2.0 Installation This chapter discusses what to do when a Model TA502A is received, the terminal connections and designations, field-device location considerations, and what to be aware of when applying power. Upon Receipt of Equipment All equipment shipped by General Monitors is packaged in shock absorbing containers, which provide considerable protection against physical damage.

  • Page 19: Rear Terminal Connections

    Rear Terminal Connections All wire connections to the Model TA502A are made to the terminal block located at the rear of the chassis. The terminal block accepts 16-AWG to 20-AWG, stranded or solid- core wire. 14-AWG wire may be used if it is properly stripped as shown in Figure 12.

  • Page 20: Rear Terminal Designations

    Model TA502A 2.3.1 Rear Terminal Designations For the rear terminal designations refer to Figure 13 below: A2 - C1 A1 - C1 A2 - 1 A1 - 1 A2 - 2 A1 - 2 A2 - 3 A1 - 3...

  • Page 21: Table 2: A2 Alarm Relay Contacts

    Model TA502A User Selected Normally Normally Relay State Open Closed Normally A2-C1 & A2-1, A2-C1 & A2-2, Energized A2-C2 & A2-4 A2-C2 & A2-3 Normally A2-C1 & A2-2, A2-C1 & A2-1, De-Energized A2-C2 & A2-3 A2-C2 & A2-4 Table 2: A2 Alarm Relay Contacts...

  • Page 22: Figure 14: Relay Protection For Ac And Dc Loads

    Model TA502A The Fault outputs are SPDT (Single Pole Double Throw) relay contacts, one open collector output (F-OC) that follows the logic of the relays and one open collector output (FUA-OC) dedicated to new fault indications. With the Backwards Compatibility option, the FUA-OC will not be present (pin 32d will be for +24VDC).

  • Page 23: Figure 15: Ta502A Inter-Connections

    Model TA502A NOTE: Only one Field Transmitter may be connected to a Model TA502A. 4-conductor cable is recommended if cable length is greater than 400 ft. Figure 15 illustrates the inter-connections for the TA502A & various types of Field Transmitters.

  • Page 24: Figure 17: Card Test Switch Wiring

    Model TA502A The terminal designation for the Card Test Input is: Label Term Description Switch Connection Table 9: Card Test Input The Card Test Input is provided so that the user can access the Card Test feature remotely. One end of a normally open SPST (Single Pole Single Throw) switch is connected to this termination and the other end is connected to system common.

  • Page 25: Applying Power

    Zero Two Series operates from 24 VDC. Power requirements will vary according to the number and type of modules in the system, as well as the number and type of field devices. NOTE: If the application of power does not turn the Model TA502A ‘ON’, check Fuse F1.

  • Page 26: Operation

    Electrical Inputs There are two electrical inputs to the Model TA502A. They are the Field Device and the Card Test input. Both of these input connections (field device and card test) are made to the rear terminal block (see Section 2.0 for more detailed installation information).

  • Page 27: Accepting Alarm Conditions

    FUA - Unaccepted Fault • CAL - Calibration Mode All of the open collector outputs on the Model TA502A have a maximum rating of: • 100 mA @ 35 VDC The Analog Output Signal is used for sending field transmitter readings and status information to remote devices.

  • Page 28: Resetting Latched Alarms

    Model TA502A panel LED, the associated mimic open collector, and the un-accept outputs will re- flash or re-activate. This gives the operator an indication of a new alarm condition that must be re-accepted. The fault alarm can be accepted similarly with the A1 & A2 alarms. The front panel fault LED will flash and the fault un-accept (FUA) open collector will energize when a fault is detected.

  • Page 29: Beam Block Feature

    Some IR combustible gas detectors, such as the General Monitors Model IR5500 and IR400, output a 2 mA signal when the optical path is blocked. When the TA502A, in standard mode, receives a signal between 1.8 and 2.5 mA, the display indicates bb to acknowledge this condition.

  • Page 30: Fault Diagnostics

    Table 12: TA502A Ultrasonic Gas leak Detectors Operating Modes 3.10 Fault Diagnostics In addition to the Fault LED on the front panel, the Model TA502A provides a fault code on the digital display whenever a fault condition occurs. If the unit is not ON, check fuse, F1.

  • Page 31: Communications

    3.11 Communications By using a General Monitors Model CC02A Communications Module as a communications bridge, the Model TA502A can communicate to a PLC or DCS system using a RS-485 Modbus interface. This allows remote access to data, such as: gas concentration at the remote gas detector, fault and alarm status, and operating mode.

  • Page 32: User Interfaces

    Types of User Interfaces User interfaces are provided so that the operator may interpret and direct the Model TA502A in the performance of its various functions. User interfaces (Figure 20) consist of a digital display, status indicators, and a Mode/Select switch.
  • Page 33 Model TA502A. The option entry indicates the order of options in the Setup Mode. To the right of the option entry is a description of the choices that are available for that option.

  • Page 34: Setup Mode Selection Table

    If the Password option to be changed from Disabled to Password Enabled: Options Set the password digits Left__________ Right__________ After all of the options have been selected, the TA502A Setup will enter the Setup Check Mode. Check Mode Table 13: Setup Mode Selection Table...

  • Page 35: Entering The Setup Check Mode

    Press the Mode/Select switch until the correct number is displayed, then wait until the TA502A accepts the first digit (approx. 5 seconds). The left digit of the display will now be blank and a “-” will appear in the right digit on the display (Figure 22). Press the Mode/Select switch until the correct number is displayed, then wait for password acceptance.

  • Page 36: Entering The Inhibit Mode

    Inhibit mode by inhibiting the alarm outputs. After the Model TA502A has entered the Inhibit Mode, pressing the Mode/Select switch causes the unit to return to normal operation (see Section 4.4). If it is desired to enter the Setup Mode, do not press the Mode/Select switch for the five seconds that In is displayed.

  • Page 37: Operating Mode

    Model TA502A 4.4.3 Operating Mode When the operating mode is selected, the display will indicate the current selection (“Std”, “Obs”, “Sur”, “400” or “420”). Press the Mode/Select switch until the desired operating mode is displayed. The factory default is “Std” Mode.

  • Page 38: A2 Alarm Options

    Model TA502A 4.4.5 A2 Alarm Options After the Sensor Range option has been selected, the A2 LED on the front panel will be flashing while the Energized/De-Energized option is displayed (Figure 25). The display will indicate the current selection, (En, or dE). De-Energized is the factory default for this selection.

  • Page 39: A1 Alarm Options

    Model TA502A If the set point is reached or exceeded, the A2 alarm outputs will activate. The display will indicate the current A2 alarm set point (Figure 27). Press the Mode/ Select switch repeatedly until the desired A2 alarm set point appears on the display.

  • Page 40: Figure 28: A1 Energized/De-Energized Alarm Option

    Model TA502A Figure 28: A1 Energized/De-Energized Alarm Option The A1 LED on the front panel will be flashing while the latching/non-latching option is displayed (Figure 29). The display will indicate the current selection, (nL or LA). Non-Latching is the factory default for this selection.

  • Page 41: Fault / Inhibit Option

    Fault circuit while the unit is in the Inhibit Mode. A nA selection specifies that the Model TA502A will not activate its Fault circuit when the unit is placed in the Inhibit Mode (see Section 4.3). A nA selection will not disable the Fault circuit; therefore, if a Fault occurs during the Inhibit Mode, the unit will activate the Fault circuit.

  • Page 42: Card Test Options

    Model TA502A 4.4.8 Card Test Options After the Fault/Inhibit option has been selected, the user will select the ramp time (1, 3 or 10 seconds) and whether or not the alarm outputs will activate during a Card Test. The display will indicate ct for about five seconds (Figure 32).

  • Page 43: Password Option

    Model TA502A Figure 34: Alarm Output Option during a Card Test, AC / nA NOTE: Selecting the nA option for the Card Test will not inhibit the Fault or A1/A2 alarm circuits in case of a malfunction or gas condition during normal operation.

  • Page 44: Inhibit Mode Description

    (Figure 36). Figure 36: Entering a New Password When the Setup Mode is complete, the Model TA502A will automatically enter the Setup Check Mode. This allows the operator to view the newly selected options. The unit will return to normal operation after completing the Setup Mode and the Setup Check Mode.
  • Page 45 5 seconds. This sequence will repeat for as long as the unit is in the Inhibit mode. The Inhibit Mode is provided so that the operation of the Model TA502A can be verified without tripping external devices that are connected to the A1 and A2 outputs.

  • Page 46: Appendix

    Model TA502A 5.0 Appendix Engineering & Technical Drawings 5.1.1 Reference Drawing #11271, Outline & Terminal Connections REAR CONNECTOR TERMINATIONS A2 - C1 A1 - C1 GENERAL MONITORS A2 - 1 A1 - 1 A2 - 2 A1 - 2 24 VDC 2W/CH MAX., CONTACTS 117 VAC 4 AMP OR 30 VDC 3 AMP RES.

  • Page 47: Reference Drawing #11270-1, Final Assembly

    Model TA502A 5.1.2 Reference Drawing #11270-1, Final Assembly Figure 38: Final Assembly Drawing...

  • Page 48: Specifications

    Input Power Requirement: 20 to 36Vdc @ 300 mA max. (24Vdc, 7W nominal). Electrical The Model TA502A is designed for use in non-hazardous Classification: environments. 4A @ 250Vac, 3A @ 30Vdc resistive max. DPDT for A1 & Relay Contact Rating: A2, SPDT for Fault.

  • Page 49: Environmental Specifications

    The system shall consist of Zero Two Series component modules as manufactured by General Monitors, Lake Forest, California, U.S.A. or General Monitors, Galway, Ireland.

  • Page 50: Ordering Information

    Ordering Information The standard configuration for the Model TA502A is: A B C D E F G TA502A - 2 - 1 - 0 7 - 1 - 1 - 1 - 1 TRIP AMPLIFIER: ■ (Std) TA502A TRIP AMPLIFIER A.
  • Page 51 Model TA502A E. CARD-TEST/RAMP-TIME: 1- □ (Std) INHIBITED RLYS-3 SEC RAMP TIME 2- □ INHIBITED RLYS-10 SEC RAMP TIME 3- □ ACTIVATE RLYS-3 SEC RAMP TIME 4- □ ACTIVATE RLYS-10 SEC RAMP TIME 5- □ INHIBITED RLYS-1 SEC RAMP 6- □...
  • Page 52 Model TA502A ADDENDUM Product Disposal Considerations This product may contain hazardous and/or toxic substances. EU Member states shall dispose according to WEEE regulations. For further General Monitors’ product WEEE disposal information please visit: www.generalmonitors.com/faqs All other countries or states: please dispose of in accordance with existing federal, state...

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