GE Power Management
745 Transformer Management Relay
2-7
2 GETTING STARTED
2.3 SECURITY
2
b) DISABLING/ENABLING PASSCODE SECURITY
Suppose at some time in the future you want to alter a setpoint. In order to do this, you must first disable pass-
code security, make the setpoint change, and then re-enable the passcode security.
ALLOW ACCESS TO
SETPOINTS? No
Move to message
S1 745 SETUP \ PASSCODE \ ALLOW ACCESS TO SETPOINTS?
. It
is from here that we will disable passcode security. Please note that this
message is hidden, when the passcode security feature is disabled by
entering a passcode of ‘0’.
PLEASE ENTER CURRENT
PASSCODE:
Press the
or
key once to select
Yes
and press
.
The
displayed message will change as shown.
yy
SETPOINT ACCESS
yy
IS NOW ALLOWED
Enter the current passcode and press the
key. This flash message
indicates that the keyed in value was accepted and that passcode security is
now disabled.
RESTRICT ACCESS TO
SETPOINTS? No
This message will appear after a few seconds. Now that setpoint access is
enabled, the
ALLOW ACCESS TO SETPOINTS?
message has been replaced by
the
RESTRICT ACCESS TO SETPOINTS
message. The relay’s setpoints can now
be altered and stored. If no front panel keys are pressed for longer than 30
minutes, setpoint access will automatically become restricted again.
PLEASE ENTER CURRENT
PASSCODE:
To disable setpoint access, immediately after setpoint editing, move back to
message
S1 745 SETUP \ PASSCODE \ RESTRICT ACCESS TO SETPOINTS?
and enter
Yes
. Key the current passcode into the shown message.
yy
SETPOINT ACCESS
yy
IS NOW RESTRICTED
Press the
key and this message will flash on the display. It indicates
that passcode security is now enabled.
ALLOW ACCESS TO
SETPOINTS? No
After a few seconds, the original display returns.
V AL U E
V A LU E
EN T E R
E N TE R
E N TE R
Содержание 745 TRANSFORMER MANAGEMENT RELAY
Страница 30: ...2 8 745 Transformer Management Relay GE Power Management 2 3 SECURITY 2 GETTING STARTED 2 ...
Страница 150: ...5 100 745 Transformer Management Relay GE Power Management 5 10 INVERSE VOLTS PER HERTZ CURVES 5 SETPOINTS 5 ...
Страница 210: ...7 36 745 Transformer Management Relay GE Power Management 7 2 BLOCK DIAGRAMS 7 SCHEME LOGIC 7 ...
Страница 322: ...9 12 745 Transformer Management Relay GE Power Management 9 3 USING 745PC 9 745 PC SOFTWARE 9 ...
Страница 392: ...11 24 745 Transformer Management Relay GE Power Management 11 1 COMMISSIONING SUMMARY 11 SETPOINT TABLES 11 ...
Страница 396: ...A 4 745 Transformer Management Relay GE Power Management A 1 FIGURES AND TABLES APPENDIXA A ...
Страница 398: ...B 2 745 Transformer Management Relay GE Power Management B 1 EU DECLARATION OF CONFORMITY APPENDIXB B ...
Страница 400: ...C 2 745 Transformer Management Relay GE Power Management C 1 WARRANTY INFORMATION APPENDIXC C ...
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Страница 407: ...GE Power Management 745 Transformer Management Relay NOTES ...