Operation description for HMI 7-inch touch screen
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5.5. Module status interface
The fault interface will display the fault information obtained from the unit communication, and each fault
information will include the date, time, module number and fault description. It will have a buffer time of 6 seconds
when entering the fault interface, on account of that it is necessary to read the fault information from the control panel.
Figure 7. Fault interface
In Figure 7, there is a selection box shown as the “System” under the Fault page. This selection box also includes all
the modules of the unit. The user can select objects to load corresponding fault information according to the requirement.
If the user selects “System”, the page will load the system’s fault information; If the “Unit 1” is selected, the fault
information of unit 1 will be loaded.
What needs illustration is that, for the current fault, the display color of its fault information is blue, and the display
color of the history fault is black; when there occurs communication fault between the human-machine interface HMI
and the control board, the module number in fault information will display 0; and if it is the other fault information, it
will display corresponding module number of that module, as shown in Figure 8a. For example, if it is the system’s fault,
the module number will display 0; if it is the fault of module 1, the module number will display 1, and the rest can be
done in the same manner. The list of all fault information shall be shown in the Chapter of the fault information.
Click the corresponding fault item (except for the communication fault between the HMI and the module) to
enterthe details display interface of that fault item, as shown in Figure 8b. The record value of various variables at the
time of the fault occurrence can be viewed in the page. For the fault of the system, 8 kinds of record values can be
viewed, while for the module fault, 16 kinds of record values can be viewed, as shown in the following two tables.
Recorded value at the time of the system fault
Status of chilled water pump
Status of cooling water pump
Operating mode:
System’s chilled backwater temperature
System’s chilled outflow water temperature
System’s cooling backwater temperature
System’s cooling outflow water temperature
Operating state:
Recorded value at the time of the module fault
Chilled backwater temperature of AI1 module
Chilled outflow-water temperature of AI2 module
Cooling backwater temperature of AI3 module Cooling outflow-water temperature of AI4 module
AI9 1-1 exhaust temperature
AI10 1-2 exhaust temperature
AI11 2-1 exhaust temperature
AI12 2-2 exhaust temperature
AI13 1 # suction temperature
AI14 2 # suction temperature
AI20 1 # suction pressure
AI21 2 # suction pressure
AI22 1 # exhaust pressure
AI23 2 # exhaust pressure
EXV1
EXV2
DO16-1
DO32-17
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
