Siemens Ohmega 300 Series Guida

7SG163 Ohmega 300 Series Maintenance

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(and including any registered or unregistered design rights) are the property of Siemens Protection Devices

Limited. No part of this document shall be reproduced or modified or stored in another form, in any data retrieval

system, without the permission of Siemens Protection Devices Limited, nor shall any model or article 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.

7SG163 Ohmega 300 Series

7SG163 Protection Relay

Document Release History

This document is issue 2010/02. The list of revisions up to and including this issue is:

Pre release

2010/02 Document reformat due to rebrand

3 Amended

2 Amended

1 First Issue

7SG163 Ohmega 300 Series Maintenance

Contents

1Maintenance Instructions .......................................................................................................................... 3

2Troubleshooting Guide.............................................................................................................................. 4

3Defect Report Form................................................................................................................................... 6

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:

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)

7SG163 Ohmega 300 Series Maintenance

2 Troubleshooting Guide

The following table describes the action of the relay under various conditions, and suggested remedial

actions when problems are encountered.

If problems are being experienced and the suggested action does not work, or the problem is not detailed

below, then please contact Siemens.

SYMPTOM PROBLEM ACTION

LCD Screen is faint or difficult to

read. Contrast too low Press TEST/RESET & UP Button

simultaneously

LCD Screen is dark or has lines

across it.

Contrast too high Press TEST/RESET & DOWN Button

simultaneously

Protection Healthy LED not lit,

LCD blank, Backlight off & No

Flag LEDS lit.

Relay is not powered

up Check Auxiliary DC supply is available.

Check connections on rear of relay.

Power supply is too

low.

Check the magnitude of the input DC

voltage. Ensure it is within the relay’s

working range of 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 “Number of inputs

or outputs changed… Relay must

cold start… Settings will be

defaulted…Please press enter”

Relay has performed

a cold start due to a

perceived change in

hardware.

If the hardware has not been changed

(i.e. status input/relay output card

added or removed) then there may be a

problem with the hardware.

Contact Siemens

Protection Healthy LED is

flashing.

Protection Healthy Output contact

is not energised.

Protection Healthy LED is steady,

and LCD screen displays ohmega

symbols (Ω).

Protection Healthy Output contact

is not energised.

Watchdog Operated:

Hardware or

Software Fault

Contact Siemens

7SG163 Ohmega 300 Series Maintenance

SYMPTOM PROBLEM ACTION

Ensure connection between PC and relay

(either via the front RS232 port or TX2 and

RX2 on the rear of the relay) has been

correctly made.

Ensure Relay address is set correctly on

both the relay and within 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 ensure that the setting

IEC870 on Port is set to COM2 & COM2

DIRECTION is set to either Auto-Detect or

the port being used.

7SG163 Ohmega 300 Series Maintenance

3 Defect Report Form

Form sheet for repairs and returned goods (fields marked with * are mandatory fields)

Sender:

* Name, first name:

Complete phone number (incl. country code):

Complete fax number (incl. country code):

Email address: * Org-ID and GBK reference:

* AWV:

* Order-/ reference-no (choosing at least 1 option):

Order-no for repair: order-/ deliverynote-no for return of commission

failure: Beginning order-no for credit note demand:

Information concerning the product and its use:

* Order Code (MLFB):

Firmware version:

V* Serialnumber:

* Customer:

Product was in use approximately since:

Station/project:

Hotline Input no.:

Customer original purchase order number: Delivery note number with position number: Manufacturer:

* Type of order (choosing at least 1 option):

Repair Return of commission failure Credit Note

Upgrade / Modification to … Warranty repair Quotation (not repair V4 and current

For collection products! See prices in PMD)

Type of failure:

Device or module does not start up Mechanical problem Overload

Sporadic failure Knock sensitive Transport damage

Permanent failure Temperature caused failure Failure after ca hrs in use

Repeated breakdown Failure after firmware update

Error description:

Displaymessage:

(useseparatedsheetformoreinfo)

Active LED messages:

Faulty Interface(s), which? Wrong measured value(s), which? Faulty input(s)/output(s), which?

*Detailed error description (please refer to other error reports or documentation if possible):

* Shall a firmware update be made during repair or mechanical upgrade of protective relays? (choosing at least 1 option)

Yes, to most recent version No Yes, actual parameters must be reusable

repair report:

Yes, standard report (free of charge) Yes, detailed report (charge: 400EUR)

Shipping address of the repaired/upgraded product:

Company, department

Name, first name

Street, number

Postcode, city, country

Date, Signature

E D EA MF TCC 6 release from 11/2009

Please contact the Siemens representative office in your country to obtain return instructions.

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