Samson 3374 Series - Restart

EB 8331-4 EN 16-9
Annex A (conguration instructions)
An activated limit contact remains permanently active if the switching point is smaller or larg-
er than the hysteresis. This limit contact can only be deactivated by a restart (see the 'Opera-
tion' section) or by resetting to NONE (c24, c27).
Code Description Default Adjustment range
c24 Limit contact 1
Message in case of event
NONE NONE (inactive)
HIGH(valueabovelimit)
LOW (value below limit)
c25 Switching point of limit contact 1 10.0% 0.0to100.0%
c26 Hysteresisoflimitcontact1 1.0% 0.0to10.0%
c27 Limit contact 2
Message in case of event
NONE NONE (inactive)
HIGH(valueabovelimit)
LOW (value below limit)
c28 Switching point of limit contact 2 90.0% 0.0to100.0%
c29 Hysteresisoflimitcontact2 1.0% 0.0to10.0%
16.9 Restart
After the supply voltage returns upon a supply voltage failure, the actuator starts according
to the restart conditions.
− Normal (c43 = NORM): The actuator remains in automatic mode and immediately fol-
lows the input signal.
− Zero calibration (c43 = ZERO): The actuator performs a zero calibration.
− Fixed positioning value (c43 = FIX): The actuator switches to the manual mode and
moves the actuator stem to the Fixed positioning value for restart.
− Stop in manual level (c43 = STOP): The actuator switches to the manual mode and sets
the last positioning value to be the same as the manual positioning value.
Code Description Default Adjustment range
c43 Restart NORM NORM (normal)
ZERO (zero calibration)
FIX(xedpositioningvalue)
STOP (stop in manual level)
When c43 = FIX
c44 Fixed positioning value for restart 0.0% 0.0to100.0%
Note