Danfoss AK-SC255

2.0 Programming AK-SC255 Database
One of the central tasks involved in retro-tting the Com-Trol front end unit is the conguration of the AK-SC255 database that
allows the Danfoss controller to fully replace the Com-Trol unit(s). Review the following section for guidance in creating the
AK-SC255 database, which replaces the Com-Trol 4k2/4K2e systems.
Using the Com-trol EZCom software, pull back and save the existing Com-Trol 4K or 4K2e controllers to be converted to
the Danfoss AK-SC255
The Com-Trol les can be viewed with the Com-Trol EzSet software utility
Using the Danfoss AKA65 software service tool, create a blank database by using the simulate function. Ensure the correct
version of simulated database is created to avoid compatibility issues on site (i.e. use the same version for the database pro-
gramming that will be installed in the physical AK-SC255 unit)
3a Start conguration of the AK-SC255 database by setting the Legacy I/O type to COMTL (found in the Store Info /
Preferences) Figure 4
3b Congure the Modbus channel under the Communications / I/O Network / Rescan Channels page. If Danfoss AK I/O
boards are also to be used, ensure the channel ‘LonWorks’ is checked also. Figure 5
3c When assigning Com-Trol board points, rst press F4 to convert the board-point type to the Com-Trol format. Figure 6
Relay conguration (table 1)
Sensor osets used in Com-Trol controllers should be transferred to the AKA65 database
Com-Trol format (EzSet) Danfoss format (AKA65)
Relay Normal N-Closed
Invert N-Open
Digital Input Normal Open
Invert Closed
Table 1
1
2
3
4
5
Preferences screen
(set Legacy I/O to COMTROL)
Sensor Congure screen
(select from drop down type list)
Rescan screen
(check Modbus)
Figure 4
Figure 5
Figure 6
new Com-Trol
sensor selection