GE 745 TRANSFORMER MANAGEMENT RELAY User Manual

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message has been replaced by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.
VALUE VALUE
ENTER
ENTER
ENTER

GE 745 TRANSFORMER MANAGEMENT RELAY Specifications

General

Brand	GE
Model	745 TRANSFORMER MANAGEMENT RELAY
Category	Relays
Language	English