CoreSense for Refrigeration

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CoreSense™ for Refrigeration

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	1. What is CoreSense technology?

CoreSense is an ingredient brand name for compressor electronics associated with Emerson’s Copeland brand products. CoreSense technology uses the compressor as a sensor to unlock the information inside the compressor to provide value adding features such as Advanced Motor Protection, Diagnostics, Communication, and Verification.

	2. What are the main features of CoreSense Diagnostics for semi-hermetic ‘Stream’ compressors?

a. In addition to compressor basic protection like motor and oil protection, CoreSense Diagnostics provides advanced motor protection features such as locked rotor, single phasing, discharge temperature, low voltage and voltage imbalance protection. It ensures that the compressor is protected in a better way to reduce the compressor failures b. CoreSense technology offers diagnostics features like failure and alarm history, compressor running status information (ex: number of compressor run hours without good oil pressure, number of cycles) which are useful for the service technician to troubleshoot problems quickly and efficiently. c. CoreSense Diagnostics provides operating parameters like power consumption of compressor, voltage and current values. d. CoreSense provides Modbus Communication for the remote access of compressor information (failure alarm information, compressor running status information, operating parameters like compressor power consumption). 2 LEDs on the CoreSense module display the alarms directly on the compressor itself. e. Also it provides features like crankcase heater control that reduce applied costs.

	3. Is CoreSense Diagnostics for ‘Stream’ compressors offered as a standard or as an option?

CoreSense Diagnostics is offered as a standard (base offering) for new generation of ‘Stream’ Compressors. The previous generation of semi-hermetic compressors ‘Discus’ will remain with existing Kriwan Motor Protection modules.

	4. What is the power supply voltage for the CoreSense Diagnostics for Stream compressors?

CoreSense Control module in front of the compressor needs 120/240 VAC. An additional sensor module inside the Terminal Box requires 24 VAC. Please refer to the CoreSense technology page for the compressor cross-section to see the different components of CoreSense Diagnostics for Stream compressors.

	5. Is it offered as a stand alone module?

No, it is offered only together with Copeland compressors.

	6. Is it compatible with Stream CO₂ compressors?

Yes. CoreSense Diagnostics is also standard on Stream CO₂ compressors. Only the Insufficient Oil Protection feature in CoreSense is disabled for Stream CO₂ compressor. The reason is that an oil splashing system is used in Stream CO₂ compressor instead of an oil pump.

	7. Is CoreSense Diagnostic also available for Digital Stream compressor?

Yes. The module is also available for the Digital Stream compressor.

	8. What happens in case of CoreSense Diagnostics module failure in the field?

Service kits are available for the individual components of the CoreSense Diagnostics module. CoreSense module can be replaced for the compressors in the field.

	9. Can I mount the CoreSense Diagnostics module on the rack instead of compressor?

No. Due to UL and CE requirement for motor protection, the module is installed on the compressor at Emerson Climate Technologies manufacturing plant.

	10. Is there also PC installable software available to read the failure alarm information from CoreSense Diagnostics module in field?

Yes. PC software installable on service laptops is available for CoreSense Diagnostics. All the alarm information, compressor operating information can be read from the CoreSense Diagnostics module.

	11. Is it possible to disable the failure alarm information from CoreSense Diagnostics module to the rack controller?

Yes. DIP Switch 9 is used to disable the communication from CoreSense Diagnostics module to the rack controller.

	12. What will the CoreSense Diagnostics module do in the case of a failure?

a. Based on the severity of failures, failure alarms are classified into three categories: warning alarm, trip alarm and lockout alarm. b. In the case of a warning alarm, the green LED on the module will flash and the compressor keeps on running. It is important to check the causes for the alarm and fix the problem. c. In the case of a trip alarm, the yellow/amber LED on the module will flash and the compressor stops with auto reset after some time (usually 5 minutes). It is important to check the causes for the alarm and fix the problem. d. In the case of a lockout alarm, the red LED on the module will flash and the compressor stops. Manual reset is required after fixing the cause of the failure. It is important to check the causes for the alarm and fix the problem.

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