Action When The Tracking Error - Samsung DMS2.5 Service Manual

Troubleshooting

5-2-8. Action when the Tracking Error

Start
Is the cable connection of RS485 proper?
Is the polarity of RS485 cable correct?
Is the speed of centralized control unit
set 9600bps?
Are the devices connected to DMS 2.5
Satisfied with install limitation?
5-10
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Yes
Yes
Yes
Yes
End
No
Check the condition of cable connection
No
Check the polarity of RS485 cable
ⓐ ⓑ
No
Set the speed of centralized control unit
as 9600bps(Turn 4th dip switch off)
Less than 256 indoor units, 1 demand
controller, Less than 8 SIMs(When demand
No
controller is connected, less than 7 SIMs), Less
than 8 DDCs.
Connect using less than 128 DDC connection
points or install additional DMS2.
Samsung Electronics