Download User Manual - Northwood Technology

Vertical range is not
within 90 2 degree
with large deviation
8
9
10
11
12
13
Self-test is normal,
but cannot control
Insensitive control of
dome device
Call out function fails
Auto action of dome
device periodically
One dome working
well while the other
does not under
identical operaion
Fault occurs when the
dome device is in tilt
movement. It may be
caused by obstacle of
camera of other object,
which lead to early tilt
movement
Wrong setting
Improper connection of
control cable
Overload or too long
distance transmission
Improper
contact
of
control cable
slip ring is demage
RS-485
protective
discharge
arresters
broken
System failure caused by
noise interference
No transmission auto “call
back” function is set to the
dome device
Something wrong with the
setting or wiring
25
Check and adjust the mechanical
installation
Set the protocol, baud rate and
address of dome device
Check the circuit
Add driver
Check the circuit
Replace
slip ring
Mostly happen in the
connection
Change 485 protective discharge
arresters
Restart the dome device
Called this setting
check the setting and wiring
again
V1.1