GE 745 - 1.4 Security; 1.4.1 Installation

CHAPTER 1: GETTING STARTED SECURITY
745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–9
1.4 Security
1.4.1 Installation
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  INSTALLATION  745 SETPOINTS message. To put the relay
in the “Programmed” state, press the VALUE UP or DOWN key once and press ENTER. Enter
“Yes” for the
ARE YOU SURE? message. The In Service LED indicator will now turn on.
1.4.2 Changing the Passcode
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  PASSCODE  SETPOINT ACCESS message. This message
cannot be edited directly. It simply indicates whether passcode security is enabled
(
SETPOINT ACCESS: “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.
2. Press the MESSAGE DOWN key once.
3. Press the VALUE UP or VALUE DOWN key once.
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 ‘*’.
5. Press the ENTER key.
745 SETPOINTS:
Not Programmed
SETPOINT ACCESS:
Read & Write
CHANGE PASSCODE?
No
CHANGE PASSCODE?
Ye s
PLEASE ENTER CURRENT
PASSCODE:
ENTER NEW PASSCODE
FOR ACCESS: