Movement suppression can be configured with parameter FLT-04. This is the minimum value which leads to reaction. (This might be increased/ influenced by the cycle time of the controller). Resulting allowed deviation can be checked in registers Reg_AllowedErrorOpen and Reg_AllowedErrorClose.
With a cycle time of 2 seconds and runtime of 150 seconds a minimum resolution of approx. 1,3% can be achieved. Fast actuators with smaller runtimes will reduce the resolution. To achieve an acceptable control at least 64 steps over the 100% are recommended. Example:
Number of steps: 150 seconds (actuator runtime) / 2 seconds (cycle time) = 75 steps.
Resultion: 100 % (range) / 75 steps = 1,3% resolution
If resulting resolution (Reg_AllowedErrorOpen) is bigger than 8% (these are 12 steps) for more than 5 minutes, the output OverrideMode shows 5.
Direct switching from open to close direction will cause early relays defects with some floating actuators. There is always one RACL loop in between to prevent the wear.
Description |
Value Range |
Default Value |
Unit |
FLT-04: Resolution |
0 … 30 |
3 |
% |