ABB ECA06 - Page 165

Chapter 3: Configuration 3.6 Setting the Configuration
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The configuration of the parameter RestartBehavior determine how the controller
behaves when it is powered up:
• PrevValPrevMode – start up using the Control Mode at the time of power down
and the same Control Signal as at power down.
• PrevValManMode – start up using the Manual Control Mode and the same
Control Signal as at power down.
• PrevValAutoMode – at power up, start up using the ControlSignal at the time
of power down, and Auto Control mode.
• RestartValManMode – start up using the Manual Control Mode and the Control
Signal defined by the parameter RestartValue.
• RestartValAutoMode – at power up, start up using the ControlSignal as defined
by the parameter RestartValue, and Auto Control mode.
• RestartValPrevMode – at power up, start up using the ControlSignal as defined
by the parameter RestartValue, and the Control mode active at the time of
power down.
Note. In EMA60, the setting of the parameter HandKey (when set to LockIn-
Manual) has priority over RestartBehavior.
The behaviour of the controller output value when an error condition occurs that
affects the behaviour of the PID algorithm is determined by the parameter
ErrorBehavior:
• HoldValue – Hold the current signal and change the Control Mode to Manual.
• ErrorValue – Set the control signal to the value defined by the parameter
ErrorValue and change the Control Mode to Manual. The user must set the
parameter ErrorValue.
ControlSignal can be limited to a certain range of valid values. This feature is
activated by setting the parameter LimitMode. The actual limits are stored in the
parameters LoLimit and HiLimit. Even if LimitMode is set to InAutoAndTracking
or AlwaysExceptForced, the Control Signal limiting is not functional if
ForcedEnable is True.
Note: The ECA06 does not have the Control Signal Limit function and hence
does not have the parameters related to this function (LimitMode, LoLimit and
HiLimit).