Commands and signals of the Modbus RTU interface
OPEN, STOP, CLOSE, position setpoint, RESET, EMERGENCY operation command, enable LOCAL,
Interlock OPEN/CLOSE
Process representation output
(command signals)
●
End positions OPEN, CLOSED
●
Actual position value
●
Actual torque value, requires MWG in actuator
●
Selector switch in position LOCAL/REMOTE
●
Running indication (directional)
●
Torque switches OPEN, CLOSED
●
Limit switches OPEN, CLOSED
●
Manual operation by handwheel or via local controls
●
Analogue (2) and digital (4) customer inputs
Process representation input (feed-
back signals)
●
Motor protection tripped
●
Torque switch tripped in mid-travel
●
One phase missing
●
Failure of analogue customer inputs
Process representation input (fault
signals)
The behaviour of the actuator is programmable:
●
Stop in current position
●
Travel to end position OPEN or CLOSED
●
Travel to any intermediate position
●
Execute last received operation command
Behaviour on loss of communication
Service conditions
Indoor and outdoor use permissibleUse
Any positionMounting position
≤ 2 000 m above sea level
> 2,000 m above sea level, on request
Installation altitude
Refer to name plate of actuator controlsAmbient temperature
Up to 100 % relative humidity across the entire permissible temperature rangeHumidity
IP68Standard:Enclosure protection in accordance
with IEC 60529
Terminal compartment additionally sealed against interior of actuator controls (double
sealed)
Option:
According to AUMA definition, enclosure protection IP68 meets the following requirements:
●
Depth of water: Maximum 8 m head of water
●
Continuous immersion in water: maximal 96 hours
●
Up to 10 operations during immersion
●
Modulating duty is not possible during immersion.
For exact version, refer to actuator controls name plate.
Pollution degree 4 (when closed), pollution degree 2 (internal)Pollution degree according to
IEC 60664-1
1 g, from 10 Hz to 200 Hz
Resistant to vibration during start-up or for failures of the plant. However, a fatigue strength may not be
derived from this. (Not valid in combination with gearboxes)
Vibration resistance according to
IEC 60068-2-6
KS: Suitable for use in areas with high salinity, almost permanent condensation, and high
pollution.
Standard:Corrosion protection
KX: Suitable for use in areas with extremely high salinity, permanent condensation, and
high pollution.
Option:
Double layer powder coating
Two-component iron-mica combination
Coating
AUMA silver-grey (similar to RAL 7037)Standard:Colour
Available colours on requestOption:
86
SA 07.2 – SA 16.2/SAR 07.2 – SAR 16.2 Control unit - electromechanical
Technical data AC 01.2 Intrusive Modbus RTU
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