P54x/EN ST/La4 Settings
(ST) 4-6
MiCOM P543, P544, P545, P546
ST
Menu text Default setting Available settings
Commission Tests Visible Invisible or Visible
Sets the Commissioning Tests menu visible further on in the relay settings menu.
Setting Values Primary Primary or Secondary
This affects all protection settings that are dependent upon CT and VT ratios. All
subsequent settings input must be based in terms of this reference.
Control Inputs Visible Invisible or Visible
Activates the Control Input sta eration menu further menu. tus and op on in the relay setting
Ctrl I/P Config. Visible Invisible or Visible
Sets the Control Input Configuration menu visible further on in the relay setting menu.
Ctrl I/P Labels Visible Invisible or Visible
Sets the Control Input Labels menu visi e further on in the relay sebl tting menu.
Direct Access Enabled
Enabled/Disabled/Hotkey
only/CB Cntrl. only
Defines w
hotkeys etc.
hat CB control direct allowed. Enabled im , access is plies control via menu
InterMiCOM
64
Fiber Disabled Enabled or Disabled
To enable (activate) or disa
teleprotection
ble COM64 (integ
). Note that Phase Diff setting and InterMiCOM6 tually
ssage (i.e. currents are sent to the remote end, etc) and with
gital messag anged has the stru
4 Fiber.
(turn off) InterMi rated 56/64kbit/s
4 Fiber setting are mu
exclusive as with Phase Diff enabled, the digital message exchanged has the structure of
the differential me
InterMiCOM64 Fiber the di
the InterMiCOM6
e exch cture and properties of
Function Key Visible Invisible or Visible
Sets the Function Key menu visible furt relay setting her on in the menu.
LCD Contrast 11 0…31
Sets the LCD contrast.
1.1.1 D
T efault values to ings in any protection he ‘restore
defaults’ nt gro mber. Alternatively it is possible tore
d settings, not just
the protection groups’ settings. fault settings will initial cratchpad
a used by the relay after they have been c t restoring
d
c ication via the rear port being disrupted if the new (default) settings do not match
t r station.
1.2 P
T COMMS/ used to
set up all the differential protection
c rameters
requi s a
D InterMiCO eprotection purposes
I
tail in the
O ication chap is service manual.
I nels,
a he co-processor
board.
efault settings restore
o resto
re the d
cell to the releva
the sett
up nu
settings group, set t
to set the ‘res
efaults’ cell to ‘all settings’ to restore the default values to all of the relay’s
The de ly be placed in the s
onfirmed. Note thand will only be
efaults to all settings includes the rear communication port settings, which may result in
ommun
hose of the maste
rotection communication configuration
he col
umn PROT IM64 is
ommunications parameters required by differential protection and also the pa
red for teleprotection when Differential function is disabled and the relay is working a
istance relay using M
64
for tel .
nterMiCOM
64
is a fiber-optic based teleprotection scheme, described in de
peration and Appl ters of th
n the settings listed here, Channel1 and Channel2 refer to the communications chan
nd are associated with configuring the communications ports fitted to t
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