PAGE 66 OF 80
NIGHT SCAN CHIEF
OPERATING INSTRUCTIONS
TP-4602001-T
DECEMBER 2020
1,13
RCP STOWED mag
-
netic sensor - Sensor
Output Error
(Upper magnetic sensor
on Vertical)
Sensor outputs are bad
Wiring problem, defec
-
tive magnetic sensor
1,14
Mast Down (lower mag
-
netic sensor)
1. Sensor Output Error
2. Sensor State Error
1. Sensor outputs bad.
They have not been
opposite for >250ms.
or
2. Mast was told to go
up, and the sensor indi
-
cates it did not move
after 8 seconds (v7.2),
or 15 seconds (v7.3).
3. Sensor is not seeing
magnet when mast is
fully retracted
1. There may be a wiring
problem, or a defective
magnetic sensor.
or
2. Defective magnetic
sensor, air supply inade
-
quate, or external mag
-
net affecting sensor.
3. Sensor not seeing
magnet - sensor needs
to be re-aligned
1,15
At 90° (Actuator) - Sen
-
sor State Error
Checked at power up
after stowing. Sensor
outputs are O.K., but
sensor shows wrong
polarity for nested state
Board was changed or
updated while the mast
was at 90°
1,16
Not Used
Not Used
Not Used
1,17
Well Closed (Vertical
with well cover) - Switch
Output Error
Sensor outputs are bad
D7 Green = Closed
D8 Yellow = Not Closed
1,18
Well Closed (Vertical
with well cover) - Sensor
State Error
Switch outputs are O.K.,
but show wrong polarity
for Well Closed
Switch wiring, defective
switch, board
1,19
Both Near 0° and 90° -
Sensor State Error
Both the Nested LS and
the 90° LS have been
detected active at the
same time. This is an
invalid condition, and
indicates a problem with
one or both sensors
Both sensors indicate
proximity, one may be
bad
1,20
Forced Stow has been
activated
This fault is set when the
Forced Stow switch is
activated to assure the
system is not in normal
operation during the
forced stow operation
Forced Stow button has
been activated
Table 9-1 Error and Warning Codes for Base Board (Continued)
Message
Meaning
Root Issue
Potential Cause
Summary of Contents for Night Scan Chief 1.0
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