Security - GE 745 Instruction Manual

CHAPTER 1: GETTING STARTED
1.4

Security

1.4.1 Installation
1.4.2 Changing the Passcode
745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Note that the relay is defaulted to the "Not Programmed" state before it leaves the factory.
This safeguards against the installation of a relay whose setpoints have not been entered.
In addition, a relay in the "Not Programmed" state blocks signaling of any output relay, and
turns off the In Service LED indicator.
Move to the
S1 745 SETUP

in the "Programmed" state, press the VALUE UP or DOWN key once and press ENTER. Enter
"Yes" for the
ARE YOU SURE?
745 SETPOINTS:
Not Programmed
To guarantee that the relay settings cannot be tampered with, the user may setup the
passcode security feature.
1. Move to the
S1 745 SETUP
cannot be edited directly. It simply indicates whether passcode security is enabled
( "Read Only"), or passcode security is disabled (
SETPOINT ACCESS
:
"Read & Write"). Each relay is shipped from the factory with setpoint access allowed.
The passcode is also defaulted to '0', which disables the passcode security feature
entirely.
SETPOINT ACCESS:
Read & Write
2. Press the MESSAGE DOWN key once.
CHANGE PASSCODE?
No
3. Press the VALUE UP or VALUE DOWN key once.
CHANGE PASSCODE?
Yes
4. Press the ENTER key to begin the procedure of changing the passcode. The displayed
message will change as shown. The current passcode is '0', so press the '0' numeric
key. The relay will acknowledge the key press by displaying '*'.
PLEASE ENTER CURRENT
PASSCODE:
5. Press the ENTER key.
ENTER NEW PASSCODE
FOR ACCESS:
INSTALLATION 745 SETPOINTS

message. The In Service LED indicator will now turn on.
PASSCODE SETPOINT ACCESS
 
SECURITY
message. To put the relay
message. This message
SETPOINT ACCESS
:
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