ABB ECA06 Configuration And Installation page 170

3.6 Setting the Configuration
Note: The inputs identified as fixed connections cannot be changed. They are
listed for information only.
DeadBand
Hysteresis
ActuatorPosTime
ActuatorMinPulseLen
Table 126
Increase
Decrease
Table 127
The parameter Deadband sets the sensitivity of the Three State Pulse output in
conjunction with the PID algorithm. As long as the difference between the
Process Value and Set Point signals is less than the configured deadband no
change is made to the Three State Pulse output signals. This applies to Auto
Control mode. A similar parameter, Hysteresis is described below.
Note: The Three State Pulse output cannot be used with a P-controller (TIx = Off
and TDx = 0.0). If you configure such a set up the signal DeltaU will remain
constant at zero.
When using the Three State Pulse output without feedback the following
functions are not available:
• RestartBehavior
• Forced Output
• ErrorBehavior
170
Name
0.0 < Deadband ≤ 10.0
0.5 ≤ Hysteresis ≤ 3.0
15 ≤ ActuatorPosTime ≤ 1000
0.3 ≤ ActuatorMinPulseLen ≤ 3.0
Three State Pulse Parameters.
Name
Three State Pulse Outputs.
Parameters
Setting
Outputs
Digital
Digital
Chapter 3: Configuration
Unit
%
%
s
%
Type
493-0736-11 (6-2)