Thermcraft XST-3-0-36-3V User Manual

Page 190

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Operation

Installation and Operation Handbook

2-6

2416 Controller

2.3.1 Automatic

mode

You will normally work with the controller in automatic mode. If the MAN light is on, press
the AUTO/MAN button to select automatic mode. The AUTO light will come on.

Power on

x 2



The Home display

Check that the AUTO light is on.
The upper readout shows the measured temperature, or
process value. The lower readout shows the setpoint.

To adjust the setpoint up or down, press

or

.

(Note: If Setpoint Rate Limit has been enabled, then the
lower readout will show the active setpoint. If

or

is pressed, it will change to show and allow adjustment of,
the target setpoint.)

Press

once

Display units

A single press of the

button will flash the display

units for 0.5 seconds, after which you will be returned to
the Home display.
Flashing of the display units may have been disabled in
configuration, in which case a single press will take you
straight to the display shown below.

Press

twice

% Output power demand

The % output power demand is displayed in the lower
readout. This is a read-only value. You cannot adjust it.

Press

and

together to return to the Home display.


If the controller is configured as Valve Position and
Manual is selected the Output Power is displayed as
VPOS. This is the inferred position of the valve

Press

Pressing

from the Output Power display may access further parameters. These may be in

this scroll list if the ‘Promote’ feature has been used (see Chapter 3, Edit Level). When you
reach the end of this scroll list, pressing

will return you to the Home display.

26.0

20.0

26.0

o

C

OP

100.0

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