Troubleshooting - Siemens 7SR45 Manual

Device Maintenance

8.4 Troubleshooting

8.4

Troubleshooting

Relay Does Not Power Up
Siemens recommends proceeding as follows:
Check the correct auxiliary AC or DC voltage is applied and the polarity is correct
²
Check the phase connections based on the terminal diagram and if CT power is applied
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Check the USB port if the relay is connected with USB power
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Check the battery healthy voltage if the relay is powered with battery power.
²
Relay Does Not Accept The Password
Siemens recommends proceeding as follows:
The password entered is wrong. Enter the correct password.
²
If correct password is forgotten, note down the numeric code displayed at the Change Password screen.
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To retrieve the password, communicate this numeric code to a Siemens customer representative.
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PROT. HEALTHY LED and TRIP READY LED OFF/LCD Not Displaying
Siemens recommends proceeding as follows:
In the absence of auxiliary voltage, check the minimum phase currents.
²
Check the error messages and the error codes under IRF in the INSTRUMENT MODE.
²
Binary Inputs Do Not Work
Siemens recommends proceeding as follows:
Check that the correct DC voltage is applied and that the polarity is correct.
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Check that the binary input settings such as the pick-up and drop-off timers and the status inversion func-
²
tion are correctly set.
Check the relay mode (Local or Remote) and binary input mode (Local or Remote) configured in the
²
settings.
Low/Critical Battery Indication
Siemens recommends proceeding as follows:
Check the paper strip between the battery clip and battery.
²
Check if the battery is connected with the proper polarity.
²
Check the battery healthy voltage.
²
Additional Support
If these measures do not lead to the desired result, the support team will help you. Please contact the local
Siemens office or contact customer support:
Phone: +49 180/524 7000 (24hrs)
Fax: +49 180/524 2471
E-mail support.energy@siemens.com
Keep the device serial number to hand for the support team.
²
Read out the version of the installed firmware.
²
Read the device related log (settings files, fault records, event records, IRF statuses) of 7SR45 device with
²
Reydisp so that the support employee has all the necessary information.
94 Reyrolle, Operating, Manual
C53000-B7040-C101-1, Edition 08.2020