Display; Status Indicators - GE 239 Instruction Manual

3 OPERATION
All messages are displayed in English on the 40-character LCD display, which is visible under varied
3
lighting conditions. While the keypad and display are not actively being used, the screen will display
the default status message. This message will appear if no key has been pressed for the time pro-
grammed in 6  6(783?35()(5(1&(6?'()$8/7 0(66$*( 7,0( . Trip and alarm condition messages
will automatically override default messages.
To maximize the lifetime of the display, its brightness can be varied using the setpoint 6 
6(783?35()(5(1&(6?'()$8/7 0(66$*( %5,*+71(66 . The display will adjust to set brightness level when
the default messages are being displayed. If any one of keys on the 239 keypad is pressed or an
alarm/trip is present the display brightness will automatically become 100%. If the default messages
time is set to OFF, the 239 display will dim to the set brightness level after 5 minutes have elapsed
since one of the keys on the keypad was last pressed.
NOTE: Message brightness control is available only on units with the VFD display.
75,3
• TRIP: The
tion (overload, short circuit etc.) or a serial trip command issued via the communication port. The
indicator and the trip relay are reset manually by pressing the
computer reset command, or by closing the external reset input.
$/$50
• ALARM: The
will be on while the
indicator will flash as long as the alarm condition persists. When the condition clears, the
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indicator will turn off. If the alarm relay has been programmed as latched, the alarm con-
dition can only be cleared by pressing the
or by closing the external reset input.
• AUXILIARY: The
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indicator will turn on while the
3-2
Courtesy of NationalSwitchgear.com
Figure 3–2: 239 DISPLAY
TRIP
ALARM
Figure 3–3: 239 STATUS INDICATORS
indicator flashes when the 239 has tripped. This will be caused by any trip condi-
relay is intended for general purpose alarm outputs. The
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relay is operating. If the
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relay is intended for customer specific requirements. The
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239 Motor Protection Relay
819761A6.CDR
AUXILIARY PICKUP
SERVICE
COMMUNICATE
RESET
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is programmed as unlatched, this
RESET key, by issuing a computer reset command,
relay is operating.
3 OPERATION

3.2 DISPLAY

3.3 STATUS INDICATORS

819762A7.CDR
key, remotely using a
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indicator
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GE Multilin