ABB SCK, System Manual

Page: 125 / 244

42/23-81 EN Rev. 4 System Manual SCK Gas Sampling System 125
Proceed as follows to start the frequency converter and adapt the control parame-
ters:
Step Procedure
1
Open the control cabinet.
2
In the control cabinet: Start the frequency converter ACS 355 (1) by
pressing the START button.
Check whether "REM" (for remote mode) is indicated on the left
side of the display and change by pressing the LOC REM button if
required.
Result: The frequency converter displays "A5011" for approx.
2 seconds.
Note: The frequency converter must be restarted after each system
power failure. The following steps 3 to 10 must be executed only
during the first system start-up and not after a system power failure.
3
Close control cabinet.
4
Turn service switch to OFF position.
5
Insert probe.
6
Monitor cooling water return temperature.
Path: Diagnosis ► Trends ► Cooling water return
Note: If the set points are exceeded due to inadequate adaptation
of the control parameters, the program sequences for the protection
of the probe are started automatically.
7
Adjust control parameter KP in small steps until the cooling water
return temperature runs as constant as possible (default: -2).
Path: Setup ► FC parameters
Note: Enter the KP value always negative using the +/– button.
8
Adjust control parameter KI to further optimize the temperature run
(TN, default: 10).
9
If necessary, also adjust control parameter KD (TV, default: 0).
Instructions