7SR220 Settings Guide
Unrestricted Page 8 of 107 © 2013 Siemens Protection Devices Limited
3.Relay Settings
3.1. System Config
Description Range Default
Active Group
Selects which settings group is currently activated
System Frequency
Selects the Power System Frequency from 50 or 60 Hz
50, 60 50Hz
View/Edit Group
Selects which settings group is currently being displayed
Setting Dependencies
When enabled only active settings are displayed and all others
hidden
Disabled, Enabled Enabled
Favourite Meters Timer
Selects the time delay after which, if no key presses have
been detected, the relay will begin to poll through any screens
which have been selected as favourite instruments
Off, 1, 2, 5, 10, 15, 30, 60 60 min
Backlight timer
Controls when the LCD backlight turns off
Off, 1, 2, 5, 10, 15, 30, 60 5 min
Date
Sets the date, this setting can only be changed on the fascia or
via Relay->Control->Set Time and Date
Time
Sets the time, this setting can only be changed on the fascia or
via Relay->Control->Set Time and Date
Curr Set Display
Select whether the Pickup values are shown in terms of x
Nominal, Primary or Secondary values on the Relay Fascia
xNom, Primary, Secondary xNom
E/F Curr Set Display
As Above
xNom, Primary, Secondary xNom
SEF/REF Curr Set Display
As Above
xNom, Primary, Secondary xNom
Export Power/Lag VAr
Selects the signs required for exporting power and lagging
VArs
+ve/+ve, +ve/-ve, -ve/+ve, -ve/-ve +ve/+ve
Select Grp Mode
Mode of operation of the group change from status input. Edge
triggered ignores the status input once it has changed to the
relevant group, where as with Level triggered the relay will
only stay in the group it has changed to whilst the status input
is being driven, after which it returns to the previous group.
Edge triggered, Level triggered Edge triggered
Clock Sync. From BI
Real time clock may be synchronised using a binary input
(See Clock Sync. in Binary Input Menu)
Disabled, Seconds, Minutes Minutes
Operating Mode
Selects the current operating mode of the relay. This can also
be changed by a binary input mode selection.
Out Of Service, Local, Remote,
Local Or Remote
Local Or Remote
Setting Password
Allows a 4 character alpha code to be entered as the
password. Note that the display shows a password dependant
encrypted code on the second line of the display
(Password) NONE
Control Password
As Above
(Password) NONE
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