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1011-550
8
Power Problems
POWER SUPPLY ON/OFF button is not illuminated
Check for AC power to the control device.
Following utility-approved work proce-
dures and safety practices, verify that there is 120 VAC in the line which provides AC
power to the control device.
LCD and LED
Problems
LCD is blank
A.
Check for AC/DC control power to the control device.
Following utility-approved
work procedures and safety practices, verify that there is voltage of the correct magnitude
on the line which provides power to the control device.
B.
Replace the LCD.
There may be a problem with the PC board (including LCD) or the
operating system; call S&C Electric Company.
LOCKOUT INDICATOR LED does not come ON during a lockout condition
A.
Check the LCD.
If it is not operating normally, see <Emphasis-Italic>LCD is blank.
B.
Do a lamp test
. Scroll the LCD to display
[Lamp Test]
. If the LED does not turn ON
but the other LEDs do, the LED is probably bad. If none of the LEDs turn ON, see
<Emphasis-Italic>LCD is blank.
C.
Check the “Lockout Level” and “Lockout Time Delay” setpoints.
The control device
may not be set to lock out the bank/reactor as expected. (See the
Setup
Instruction Sheet
1011-530 for details on setting these setpoints.)
ALARM INDICATOR LED does not come ON during an alarm condition
A.
Check the LCD.
If it is not operating normally, see <Emphasis-Italic>LCD is blank.
B.
Do a lamp test
. Scroll the LCD to display
[Lamp Test]
. If the LED does not turn ON
but the other LEDs do, the LED is probably bad. If none of the LEDs turn ON, see
<Emphasis-Italic>LCD is blank.
C.
Check the “Alarm Level” and “Alarm Time Delay” setpoints.
The control device may
not be set to indicate an alarm as expected. (See the
Setup
Instruction Sheet 1011-530 for
details on setting these setpoints.)
LCD Displays “Setup Password = 0000” and does not enter the Setup Mode
The password feature has been enabled and a password is required before the Setup
Mode is enabled. (See Setup Instruction Sheet 1011-530 for details.)
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