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4.1. TROUBLESHOOTING PROCEDURES
4.1.1. TROUBLESHOOTING PROCEDURES
Troubleshooting procedures are listed in table below.
PROBLEM
1. The end of 24V
Thermal
speed dome
AC power supply
have no
didn't connect with
action and
speed dome in right
there is no
way.
picture in
2. Power failure or
monitor after
transformer break-
power is on.
down.
1. IP address Switch
After self
testing,
of speed dome set
keyboard
incorrectly.
can't control
Thermal
speed dome.
2. Reverse connec-
tion and open circuit
of RS485 control
bus.
3. RS485 control
bus breakdown.
1. Poor fan connec-
Fan
don't work.
tion.
2. Ambient tempera-
ture is below 10°C
1. Thermal speed
The picture
is fuzzy.
dome is in the
manual focus status.
2. Transparent lower
dome is not clean.
4-2
POSSIBLE
REASONS
SOLUTION
1. Check whether thermal speed
dome connect to 24V AC power
supply. Make sure that the well
connection between speed dome
and 24V AC power supply.
2. Check whether the power supply
is in working order and whether 24V
AC transformer work normally.
1. Reset DIP switches according to
DIP switch setting table.
And make sure that the IP address
speed dome is the same with that
of keyboard.
2. Check connection of RS485
control bus, guarantee well and
correct connection.
3. Refer to common sense of
RS485 control bus.
1. Make sure the well connection. If
fan don't work when connection is
well, please contact supplier.
2. Make sure that thermal speed
dome work in proper temperature.
1. Change the manual focus status
to auto focus status.
2. Clean transparent lower dome.
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