Solid-State Relay Output Module Indicators

Date: Mar 25, 2025 Views: 883

　　This section describes the SRO Module indicators and recommends actions for fault conditions.

　　SRO Status Indicators

　　The SRO status indicators identify the processing state for the SRO Module. A fault light indicates that the module has an internal fault.

　　SRO Point Indicators

　　The SRO point indicators identify whether the point is energized or not energized.

　　Replacing Modules

　　This section describes how to replace faulty MP, CM, and I⁄O modules. The I⁄O instructions explain how to replace a module when it has a hot spare and when it does not.

　　The following instructions are included:

　　• “Replacing a Main Processor Module” on page 196.

　　• “Replacing a Communication Module” on page 197.

　　• “Replacing an I⁄O Module Without a Hot Spare” on page 198.

　　• “Replacing an I⁄O Module With a Hot Spare” on page 199.

　　Guidelines for Replacing Modules

　　Before replacing any module, you should observe the following guidelines.

　　WARNING:If a controller has two faults, one in an MP and one in another type of module, replace the MP first. Wait until the Active indicator of the replacement module goes on, then replace the second faulty module.

　　• If an I⁄O module has a field fault and a module fault, resolve the field fault first. Before replacing the I⁄O module, then reset the I⁄O module using the TriStation Diagnostic Panel.

　　CAUTION:Before inserting any module into the controller, check for damaged pins. If damaged pins are present, do not insert the module. Inserting modules with damaged pins may cause the controller to malfunction and may affect the controlled process. If you find a module with damaged pins, please return it to Triconex for repair.

　　When replacing a module, you must use a #2 flat-blade screwdriver to lock or unlock the module. See “Installing Modules” on page 148.

　　For optimal performance, store spare I⁄O modules in vacant slots as hot spare/hot replacement modules.

　　Store any remaining, unused modules in their original shipping cartons.

　　Replacing a Main Processor Module

　　If the fault indicator of an MP Module light is blinking, the diagnostics have detected a module failure.

　　Before replacing an MP, verify that all I⁄O modules are locked.

　　CAUTION: After replacing an MP, allow the module to fully re-educate before unlocking another MP. Never unlock more than one MP at a time.

　　To replace a faulty MP:

　　If available, make a note of the diagnostic message, model, and serial numbers.

　　Before replacing an MP Module, observe the important instructions provided in the section called “Guidelines for Replacing Modules” on page 195.

　　If the controlled process is online, verify that at least one MP Module has an Active indicator with a blinking yellow light.

　　On the faulty MP Module, rotate the lock lever counter-clockwise until the module ejects from the baseplate.

　　Insert the replacement MP Module and rotate the lock lever clockwise to draw the module into the baseplate.

　　Note: When replacing a module, you must use a #2 flat-blade screwdriver to lock or unlock the module. See the “Installing Modules” procedure on page 148.

　　The Pass indicator should go on and stay on within one to six minutes.

　　The Active indicator on the replacement MP Module blinks at the same rate as the other MPs within one to six minutes.

　　If the module is not properly seated, the Lock indicator stays on. The Active indicator does not go on until the MP Module is properly seated and locked.

　　Contact the Triconex Customer Response Center to obtain a returned material authorization (RMA) number.

　　Return the module to Triconex for repair.

　　If the fault indicator of a Communication Module light is blinking, the diagnostics have detected a module failure.

　　CAUTION:The CM does not have hot-spare capability.

　　To replace a faulty CM:

　　If available, make a note of the diagnostic message, model, and serial numbers.

　　Before replacing a CM, observe the important instructions provided in the section called “Guidelines for Replacing Modules” on page 195.

　　Detach all communication cables from the faulty module.

　　On the faulty CM, rotate the lock lever counter-clockwise until the module ejects from the baseplate.

　　Note： If communication has not been disrupted by the fault, removing the module disrupts communication until the module is replaced. If you have a redundant CM, replacing the faulty module does not affect communication on the redundant CM.

　　Insert the replacement CM and rotate the lock lever clockwise to draw the module into the baseplate.

　　The Pass indicator should go on within one minute.

　　The Active indicator should go on within one to two minutes. Then the Active indicator on the faulty module goes off.

　　If the module is not properly seated, the Lock indicator stays on. The Active indicator does not go on until the CM is properly seated and locked.

　　Re-attach all communication cables to the CM.

　　Contact the Triconex Customer Response Center to obtain a returned material authorization (RMA) number.

　　Return the module to Triconex for repair.

　　Replacing an I⁄O Module Without a Hot Spare

　　If the fault indicator of an I⁄O module is on, the diagnostics have detected a module failure.

　　To replace an I⁄O module:

　　If available, make a note of the diagnostic message, model, and serial numbers.

　　Before replacing an I⁄O module, observe the important instructions provided in the section called “Guidelines for Replacing Modules” on page 195.

　　Insert the replacement I⁄O module in the slot adjacent to the faulty module and rotate the lock lever clockwise to draw the module into the baseplate.

　　Note： When replacing a module, you must use a #2 flat-blade screwdriver to lock or unlock the module. See the “Installing Modules” procedure on page 148.

　　When the module is installed, the Fault indicator goes on while the diagnostics are running. At the same time, the Point indicators go on briefly, go off, then resume the normal state of blinking. The Pass Indicator should go on within about one minute. If it does not, and the Fault light persists longer than five minutes, check the diagnostic log to determine if there is a problem.

　　If the module is not properly seated, the Lock indicator stays on. The Active indicator does not go on until the I⁄O module is properly seated and locked.

　　The Active indicator should go on within one to two minutes. Then the Active indicator on the faulty module goes off. If the Active indicator on the newly inserted module does not go on within five minutes, replace it with another module.

　　CAUTION

　　Never remove the currently active module.

　　On the faulty I⁄O module, rotate the lock lever counter-clockwise until the module ejects from the baseplate.

　　Contact the Triconex Customer Response Center to obtain a returned material authorization (RMA) number.

　　Return the module to Triconex for repair.

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