Omni30 User Manual
- 27 -
© Omniflex
UMC1620AR04
Table 5-1 Fault diagnosis during Circuit Test
Display
Window No.
FAULT SYMPTOM
POSSIBLE CAUSE
FLASHING
during “Marching Sequence”
SIL input (serial port) stuck in ON
state
1
STEADY ON
during “Marching Sequence”, and stays ON
during “Blank” display period.
Window No. 1 has lamp output
circuit fault.
STEADY
OFF
during “Marching Sequence”, and stays
OFF during “Blank” display period.
Window No. 1 has lamp failure or
output circuit fault.
FLASHING
during “Marching Sequence”
ACC pushbutton held down, or stuck
in ON state (this condition must have
been present BEFORE the CCT.
TEST mode was initiated)
2
STEADY ON
during “Marching Sequence”, and stays ON
during “Blank” display period.
Window No. 2 has lamp output
circuit fault.
STEADY
OFF
during “Marching Sequence”, and stays
OFF during “Blank” display period.
Window No. 2 has lamp failure or
output circuit fault.
FLASHING
during “Marching Sequence”
RESET pushbutton held down, or
stuck in ON state.
3
STEADY ON
during “Marching Sequence”, and stays ON
during “Blank” display period
Window No. 3 has lamp output
circuit fault.
STEADY
OFF
during “Marching Sequence”, and stays
OFF during “Blank” display period
Window No. 3 has lamp failure or
lamp output circuit fault.
FLASHING
during “Marching Sequence”
TEST pushbutton held down, or
stuck in ON state.
4
STEADY ON
during “Marching Sequence”, and stays ON
during “Blank” display period.
Window No. 4 has lamp output
circuit fault.
STEADY
OFF
during “Marching Sequence”, and stays
OFF during “Blank” display period.
Window No. 4 has lamp failure or
lamp output circuit fault.
STEADY ON
during “Marching Sequence”, and stays ON
during “Blank” display period
Window has lamp output circuit fault.
ANY
OTHER
LAMP
STEADY
OFF
During “Marching Sequence”, and stays
OFF during “Blank” display period.
Window has lamp failure or lamp
output circuit fault.
1,2,3,4,6
STEADY ON
During “Blank” display period but OFF
during “Marching Sequence”
Fault detected on one of the INPUT
logic circuits
1,2,3,4
STEADY ON
During “Marching Sequence”
Fault detected on the SPI bus OR all
pushbuttons stuck ON
1,2,3,4,5,6
STEADY ON
During “Blank” display period but OFF
during “Marching Sequence”
Fault detected on the SPI bus
1,2,3,4,7
STEADY ON
During “Blank” display period but OFF
during “Marching Sequence”
Fault detected with the on-board
EEPROM
