Help Mode; Trip/Alarm Mode - GE 169 Instruction Manual

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GE Power Management
3 SETUP AND USE

3.5 HELP Mode

This display mode should be used whenever help is required in using the 169 relay. The HELP key can provide the
user with information on the proper function and use of each key on the keypad or can provide information about the
currently displayed ACTUAL VALUES, SETPOINTS, or TRIP/ALARM message. Pressing the HELP key has no
effect when a flash message or HELP message is on the display.
If the HELP key is pressed with the first line of a page (i.e. a page header) on the display the following message will
appear:
Press KEY of interest or
HELP again for details
The user should then press the key for which instruction is required or press the HELP key again to access
information on the previously displayed ACTUAL VALUES, SETPOINTS, or TRIP/ALARM message. When the
desired key is pressed the display will show the message:
Press LINE DOWN for
info or CLEAR to exit
The LINE DOWN key can then be used to display the requested HELP message.
If the HELP key is pressed with any line that is not a page header on the display the HELP message shown will be
for the previously displayed ACTUAL VALUES, SETPOINTS, or TRIP/ALARM message.
Pressing the CLEAR key at any time during the HELP message will return the display to the page and line of the
mode in effect when the HELP key was originally pressed. The ACTUAL VALUES and SET POINTS keys may also
be pressed to exit HELP mode.

3.6 TRIP/ALARM Mode

TRIP/ALARM mode can only be entered when an actual motor value exceeds a setpoint value or an alarm becomes
active. Every trip and alarm condition has a separate message so that the exact nature of the problem can be easily
identified.
TRIP/ALARM mode will be entered whenever a setpoint is exceeded or an alarm condition arises regardless of
whether an output relay activation occurs. For example, if the "STATOR RTD ALARM LEVEL" setpoint is exceeded,
but this function is assigned to "NO" output relay, the 169 will enter TRIP/ALARM mode but no output relay activation
will occur.
To leave TRIP/ALARM mode the ACTUAL VALUES, SET POINTS, or HELP keys can be pressed. Doing this will not
change the state of the output relays but will allow the user to access other motor and relay information to determine
the cause of the trip. The active TRIP/ALARM messages are found in ACTUAL VALUES mode, page 5, immediately
in front of the pre-trip motor data. If any trip/alarm function is active and no key is pressed for a time of 20 seconds,
the 169 relay display will return to the appropriate TRIP/ALARM message.
Only one type of relay trip can occur at any one time. However, a trip and an alarm or multiple alarms can occur at
the same time. If this is the case the 169 relay display will show the TRIP/ALARM message for the trip or alarm with
the highest priority. Any other active messages can be examined by using the LINE DOWN key. The complete set of
TRIP/ALARM messages is shown in Table 3-4 together with a description of the conditions causing the relay to enter
TRIP/ALARM mode. The messages are shown in order of display priority.
Note: Only one TRIP function can occur at any one time. TRIP functions must therefore be used to trip out
the motor. Once one TRIP function is active no other TRIPs can occur. If multiple ALARMs occur, the other
ALARM messages may be viewed by pressing the LINE DOWN key.
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