GE Power Management
489 Generator Management Relay 4-3
4 SETPOINT PROGRAMMING 4.2 S1 489 SETUP
4
4.2 S1 489 SETUP 4.2.1 PASSCODE
A passcode access security feature is provided with the 489. The passcode is defaulted to "0" (without the quotes) at the
time of shipping. Passcode protection is ignored when the passcode is "0". In this case, the setpoint access jumper is the
only protection when programming setpoints from the front panel keypad and setpoints may be altered using the RS232
and RS485 serial ports without access protection. If however, the passcode is changed to a non-zero value, passcode pro-
tection is enabled. The access jumper must be installed and the passcode must be entered, to program setpoints from the
front panel keypad. The passcode must also be entered individually from each serial communications port to gain setpoint
programming access from that port.
To enable passcode protection on a new relay, follow the procedure below:
1. Press then until the
CHANGE PASSCODE
message is displayed.
2. Select "Yes" and follow directions to enter a new passcode 1 to 8 digits in length.
3. Once a new passcode (other than 0) is programmed, it must be entered to gain setpoint access whenever setpoint
access is restricted. Assuming that a non-zero passcode has been programmed and setpoint access is restricted, then
selecting the passcode subgroup causes the
ENTER PASSCODE AGAIN
message to appear.
4. Enter the correct passcode. A flash message will advise if the code is incorrect and allow a retry. If it is correct and the
setpoint access jumper is installed, the
SETPOINT ACCESS: Permitted
message appears.
5. Setpoints can now be entered. Exit the passcode message with the key and program the appropriate setpoints.
If no keypress occurs for 5 minutes, access will be disabled and the passcode must be re-entered. Removing the set-
point access jumper or setting
SETPOINT ACCESS
to "Restricted" also disables setpoint access immediately.
If a new passcode is required, gain setpoint access by entering the current valid passcode. Press to display the
CHANGE PASSCODE
message and follow the directions. If an invalid passcode is entered, the encrypted passcode is view-
able by pressing . Consult GE Power Management with this number if the currently programmed passcode is
unknown. The passcode can be determined with deciphering software.
4.2.2 PREFERENCES
Some of the 489 characteristics can be modified to suit different situations. Normally the
S1 489 SETUP / PREFERENCES
set-
points group will not require any changes.
îš„
PASSCODE
îš„
[ENTER] for more
ENTER PASSCODE FOR
ACCESS:
Range: 1 to 8 numeric digits. Seen only if the passcode is
not "0" and SETPOINT ACCESS is "Restricted".
MESSAGE
SETPOINT ACCESS:
Permitted
Range: Permitted, Restricted. Seen only if the passcode
is "0" or SETPOINT ACCESS is "Permitted".
MESSAGE
CHANGE PASSCODE:
No
Range: No, Yes. Seen only if the passcode is "0" or
SETPOINT ACCESS is "Permitted".
îš„
PREFERENCES
îš„
[ENTER] for more
DEFAULT MESSAGE
CYCLE TIME: 2.0 s
Range: 0.5 to 10.0 s step 1
MESSAGE
DEFAULT MESSAGE
TIMEOUT: 300 s
Range: 10 to 900 s step 1
MESSAGE
PARAMETER AVERAGES
CALC. PERIOD: 15 min
Range: 1 to 90 min. step 1
MESSAGE
TEMPERATURE DISPLAY:
Celsius
Range: Celsius, Fahrenheit
MESSAGE
WAVEFORM TRIGGER
POSITION: 25%
Range: 1 to 100% step 1
MESSAGE
WAVEFORM MEM BUFFER
8x14 CYCLES
Range: 1x64, 2x42, 3x32, 4x35, 5x21, 6x18, 7x16, 8x14,
9x12, 10x11, 11x10, 12x9, 13x9, 14x8, 15x8,
16x7 cycles
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
HELP
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE
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