Security; Installation; Changing The Passcode - GE TRANSFORMER MANAGEMENT RELAY 745 Instruction Manual

2 GETTING STARTED

2.2SECURITY

Note that the relay is defaulted to the
the installation of a relay whose setpoints have not been entered. In addition, a relay in the
signaling of any output relay, and turns off the In Service LED indicator.
Move to the
S1 745 SETUP
the or
VALUE VALUE
indicator will now turn on.
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
ply indicates whether passcode security is enabled (
(
SETPOINT ACCESS:
code is also defaulted to '0', which disables the passcode security feature entirely.
SETPOINT ACCESS:
Read & Write
2. Press the
MESSAGE
CHANGE PASSCODE?
No
3. Press the
VALUE
CHANGE PASSCODE?
Yes
4. Press the key to begin the procedure of changing the passcode. The displayed message will change as shown.
ENTER
The current passcode is '0', so press the '0' numeric key. The relay will acknowledge the key press by displaying 'z'.
PLEASE ENTER CURRENT
PASSCODE:
5. Press the key.
ENTER
PLEASE ENTER A NEW
PASSCODE:
6. For this example, change the passcode to "123" by pressing the appropriate numeric keys in the
message will change as the digits are entered, with the end result being as shown.
PLEASE ENTER A NEW
PASSCODE:
7. Press the key to store the new passcode and a confirmation message appears. As a safety measure, the relay
ENTER
requires you to enter a new passcode twice. This ensures the passcode has been entered correctly.
PLEASE RE-ENTER NEW
PASSCODE:
GE Multilin
Courtesy of NationalSwitchgear.com
Setpoints Not Programmed

INSTALLATION

745 SETPOINTS
key once and press
ENTER
PASSCODE SETPOINT ACCESS
"Read & Write"). Each relay is shipped from the factory with setpoint access allowed. The pass-
key once.
or key once.
VALUE
745 Transformer Management Relay
state before it leaves the factory. This safeguards against
message. To put the relay in the
. Enter Yes for the
ARE YOU SURE?
message. This message cannot be edited directly. It sim-
"Read Only"), or passcode security is disabled
SETPOINT ACCESS:
2.2 SECURITY
2.2.1 INSTALLATION
state blocks
Not Programmed
state, press
Programmed
message. The In Service LED

2.2.2 CHANGING THE PASSCODE

sequence. The
1 2 3
2
2-5