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mAI085-MB Actuator Interface Technical Manual /9
Distributive Intelligence
CMC INDUSTRIAL ELECTRONICS LTD
4. Using the Interface
The controller has an easy to use keyboard for selecting and controlling the connected
actuators.
4.1 Selecting an Actuator Controller
Use the upper up or down keys to select the actuator. The right keys move between the
actuator one at a time. The left keys skip actuators at a time. The upper display indicates
which actuator is selected. The SCAN key allows the viewing of all connected actuators at one
second intervals. Pressing the SCAN key or any of the upper up/down keys can cancel scan.
4.2 Changing a Setpoint
The lower up/down keys change the setpoint for the selected actuator. The first press of any of
the up or down keys switches the lower display to the setpoint mode and the SV lamp will
illuminate. The right keys change the setpoint by 1. The left keys change the setpoint by 10.
The setpoint will not be saved and sent to the actuator until the SET key is pressed. If the SET
key is not pressed within 10 seconds, the display reverts to PV mode and the new setpoint is
discarded.
…Caution…
If it is required that all the actuators respond simultaneously to the
new setpoints, then first insure that the interface is in close mode
before making any changes to the setpoints.
The command to move the actuator is only sent when a setpoint has changed or the operating
mode is changed from closed to open. Pressing the SET key with the same setpoint value as
the previous move will not start a move operation.
4.3 Opening the Actuators
Pressing the OPEN key opens all actuators with a setpoint above 0. The OPEN indicator light
will illuminate. The STATUS display will indicate the status of the current open operation for the
selected actuator.
4.4 Closing the Actuators
Pressing the CLOSE key closes all actuators to a setpoint of 0. The CLOSE indicator light will
illuminate. The STATUS display will indicate the status of the current close operation for the
selected actuator.