A multi-turn actuator is an actuator which transmits torque to a valve for at least one
full revolution. It is capable of withstanding thrust.
AUMA multi-turn actuators are driven by an electric motor and are capable of
withstanding thrust in combination with output drive type A. For manual operation,
a handwheel is provided. Switching off in end positions may be either by limit or
torque seating. Actuator controls are required to operate or process the actuator
signals.
For variable speed multi-turn actuators SAV 07.2 – SAV 16.2/SARV 07.2 – SARV
16.2, the actuator speed is modified by means of a frequency converter in the actuator
controls.
Actuator controls
ACV 01.2 actuator controls are used to operate AUMA actuators and are supplied
ready for use.
The functions of the actuator controls include standard valve control in OPEN-CLOSE
duty, positioning, process control, logging of operating data, diagnostic functions
right through control via various interfaces (e.g. fieldbus, Ethernet and HART).
Local controls/
AUMA CDT
Operation, setting, and display can be either performed directly at actuator controls
or alternatively from REMOTE via binary input signals, or using another interface.
When set to local control, it is possible to
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operate the actuator via push buttons, to perform the settings and to receive
actuator information by means of a display (contents of these operation instruc-
tions).
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read in or out data or modify and save settings via AUMA CDT software using
a computer (eg. PC). The connection between computer and actuator controls
is wireless via Bluetooth interface (not included in these instructions). AUMA
CDT software can be downloaded free of charge from our website
www.auma.com.
Intrusive - Non-Intrusive
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Intrusive version (control unit: electromechanical):
Limit and torque setting is performed via switches in the actuator.
●
Non-Intrusive version (control unit: electronic):
Limit and torque setting is performed via the controls, without removal of actu-
ator or actuator controls covers. For this purpose, the actuator is equipped with
an MWG (magnetic limit and torque transmitter), also capable to supply analogue
torque feedback signals/torque indication and analogue position feedback sig-
nals/position indication at the actuator controls output.
12
SAV 07.2 – SAV 16.2 / SARV 07.2 – SARV 16.2 Control unit: electronic (MWG)
Identification ACV 01.2 Modbus RTU
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