Daikin Magnitude WME Series, Installation, Operation And Maintenance Manual

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www.DaikinApplied.com 27 IOM 1266-2 • MAGNITUDE
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MODEL WME CHILLERS
Human Machine Interface
(HMI)
The HMI is turned on/off with a switch located at the lower
right-hand edge of the display panel. Screen control buttons
are located to either side of it and elicit on-screen prompts
when pressed. The HMI is equipped with a screen saver (a
blank, black screen). If the screen is black, touch it first to be
sure it is on before using the ON/OFF button.
Chiller Operation Without the HMI
The Human Machine Interface (HMI) communicates with the
embedded Chiller PC ( Figure 4 on page 7) , displaying
data and transmitting touch screen inputs to the controllers.
The HMI does no actual controlling and the chiller can operate
without it. Should the Touch Screen become inoperable, no
commands are necessary for continuing unit operation. All
normal inputs and outputs will remain functional. A PC monitor
and USB mouse can be connected to the Chiller PC via its
display port and can be used to view operational data, to clear
alarms, and to change setpoints, if necessary.
If the HMI and the chiller both appear to be inoperable, the
embedded Chiller PC should be checked since it is required for
the chiller to run.
Navigation Summary
The Home View Screen, see Figure 27 , is the main information
page for the chiller. This screen contains the AUTO and STOP
buttons in the upper right-hand corner, which are used to start
and stop the unit when in “User” control mode. Other groups
of screens can be accessed from the Home View Screen by
pressing one of the icons on the bottom of the screen.
An initial startup step may be to select the Operator icon on the
bottom right of the HMI to access the Operator screen ( Figure
26) to set display language and unit of measure preferences as
well as input the appropriate level of password for making unit
adjustments going forward. Should the touch screen cursor
not respond to where the screen is being pressed, use the
Calibrate button to recalibrate the screen. The Calibrate button
is oversized to make it easier for the non-calibrated cursor to
select.
Figure 26: Operator View Screen