7
2.
INTRODUCTION
AUMA INDIA
has developed a new range of electric actuators with intelligent
integral starter using microcontrollers for weather proof and explosion proof applications
that has the ability to store events and other upgraded features. As a microcontroller is
used, the actuators support both ON-OFF and Regulating Duty Control. The actuator can
also be run in Inching or Non-Inching mode. The important features of these electric
actuators are as follows:
2.1
LCD DISPLAY & LED INDICATION
Options can be selected by using the selector switches, push buttons based on the
instructions displayed on the LCD screen. Information on faults/statuses can be obtained
from the 4 LEDs next to the LCD. The 4 LEDs are configurable as per user requirement
before-hand. LCD screen facilitates easier understanding of status, operation and
parameter setting details. More information regarding this is described in section 3.
2.2
INBUILT FRONT PANEL OPTION SELECTION
Different features/options of the actuator can be configured using software. This is
done using the selector switches, push buttons based on the instructions displayed on the
LCD screen that is present on the front panel. More information regarding this is described
in section 3.
2.3
INTERFACES
This actuator is capable of supporting different types of interfaces like Remote – 4
Wire, Remote -2 Wire Make/Break, 4-20 mA Regulating Duty & MODBUS-RTU.
2.4
EMERGENCY STOP - ESD
ESD feature is default configured to run in Close direction on enabling ESD. One needs to enable
ESD and set its behavior in Program Mode for it to function. An ESD via MODBUS option is also
available that needs to be enabled in Program Mode. ESD Operation can be configured for
OPEN/CLOSE/STAY. One can choose to set ESD on TOLR Ignore, TH Ignore, Space heater Fail Ignore,
OFF Ignore. This means that ESD operation would occur irrespective of these faults. One must enable
ESD on program mode and set its behavior (ESD Open/Close). An ESD NO/NC configuration is also
