2.2.
Short description
Multi-turn actuator
Definition in compliance with EN ISO 5210:
A multi-turn actuator is an actuator which transmits to the valve a torque for
at least one full revolution. It is capable of withstanding thrust.
AUMA multi-turn actuators are driven by an electric motor. A handwheel is
provided for manual operation.
Switching off in end positions may be either by limit or torque seating.
Controls are required to operate or process the actuator signals.
Actuator controls
The AUMATIC actuator controls is used to operate AUMA actuators and is
supplied ready for use.
The controls can be mounted directly to the actuator but also separately on
a wall bracket.
The functions of the AUMATIC controls include standard valve control in
OPEN - CLOSE duty, positioning, process control, logging of operating data,
diagnosis functions right through control via fieldbus.
Local controls/
COM-AC/fieldbus
Operation, setting, and display can be performed on site directly at the con-
trols or alternatively from REMOTE via a fieldbus interface.
On site it is possible to
.
operate the actuator via the local controls (push buttons and display)
and perform settings (contents of these instructions).
.
read in or out data or modify and save settings via the COM-AC software
(option), using a computer (laptop or PC). Depending on the version, the
connection between computer and AUMATIC can be made with cable
(infra-red interface) or without cable (Bluetooth interface). (Not included
in these instructions.)
Intrusive – Non-intrusive
.
Intrusive version:
Limit and torque setting is performed via switches in the actuator.
.
Non-Intrusive version:
Limit and torque setting is performed via the controls, actuator and con-
trols housings do not have to be opened.
For this purpose, the actuator is equipped with an MWG (magnetic limit
and torque transmitter), also supplying analogue torque feedback sig-
nals/torque indication.
9
Multi-turn actuator SAExC 07.1 – SAExC 16.1/SARExC 07.1 – SARExC 16.1
Non-Intrusive
Operation instructions
with actuator controls AUMATIC ACExC 01.1 Profibus DP