2. Identification
2.1. Short description
Multi-turn actuator
Definition in compliance with EN 15714-2/EN ISO 5210:
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.
Figure 1: Example, Multi-turn actuator SA 25.1
AUMA multi-turn actuators SA 25.1 – SA 48.1/SAR 25.1 – SAR 30.1 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.
Actuator controls
AC 01.2 actuator controls are used to operate AUMA actuators and are supplied
ready for use.The actuator controls may be mounted directly to the actuator or
separately on a wall bracket. For high nominal motor currents of the actuator, the
switchgear of the actuator controls require a control box.
Figure 2: Mounting variants actuator controls and control box
[1] Actuator controls directly mounted
[2] Actuator controls on wall bracket
[3] Control box
The functions of the AC 01.2 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 performed directly at the actuator controls or
alternatively from REMOTE via a fieldbus interface.
When set to local control, 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 AUMA CDT software (ac-
cessory), using a computer (laptop or PC).The connection between computer
and actuator controls is wireless via Bluetooth interface (not included in these
instructions).
9
SA 25.1 – SA 48.1/SAR 25.1 – SAR 30.1
AC 01.2 Intrusive HART Identification
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