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7SG163 Ohmega 300 Series Maintenance

 

 

1 Maintenance Instructions 

 
The relay is a maintenance free device, with no user serviceable parts.  During the life of the relay it should 
be checked for operation during the normal maintenance period for the site on which the product is installed.  
It is recommended the following tests are carried out: 
 

Visual inspection of the metering display (every year) 

 

Operation of output contacts (every 2 years) 

 

Secondary injection of each element (every 5 years) 

 
 
 
 
 

©2010 Siemens Protection Devices Ltd 

 

Chapter 10 Page 3 of 6 

Summary of Contents for Ohmega 300 Series

Page 1: ...ticle be reproduced from this document unless Siemens Protection Devices Limited consent While the information and guidance given in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2011 Siemens Protectio...

Page 2: ...7SG163 Ohmega 300 Series Maintenance Contents 1 Maintenance Instructions 3 2 Troubleshooting Guide 4 3 Defect Report Form 6 2010 Siemens Protection Devices Ltd Chapter 10 Page 2 of 6 ...

Page 3: ... be checked for operation during the normal maintenance period for the site on which the product is installed It is recommended the following tests are carried out 1 Visual inspection of the metering display every year 2 Operation of output contacts every 2 years 3 Secondary injection of each element every 5 years 2010 Siemens Protection Devices Ltd Chapter 10 Page 3 of 6 ...

Page 4: ...37 5 to 137 5 V Relay LCD displays PSU alarm asserted supply out of limits Internal ribbon cable connection not made Check ribbon connection cable to module A is correctly attached Protection Healthy LED blinking Messages cursor blocks flashing across the LCD screen Internal ribbon connections not made correctly Check ribbon connection cables to each module are correctly attached Relay displays Nu...

Page 5: ...n ReyDisp Evolution If the relay address is set to 0 the relay will not communicate Ensure the baud rate parity settings on the PC are the same as those set on the relay Relay unable to communicate using ReyDisp Evolution software Communication channel incorrectly configured Refer to Section 6 of this manual for more details on the configuration of the Communication Channel If using the front port...

Page 6: ...in P MD Type of failure De vice or mo dule do es not sta rt up M echanical problem Overlo ad S porad ic failu re K nock sensitive Tran sp ort dam age P erman ent failure Tem perature caused failure Fa ilure after ca h rs in use Re peated brea kd own Failure afte r firmwa re upd ate E rror desc ription Displa y m essa ge use sepa ra ted she et fo r more info A ctive LE D m essa ges Fau lty Inte rfa...

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