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Operating and Maintenance Instructions
If all the fans in the array cannot be found, it is recommended that communication is checked with each fan to
diagnose the fault. It is possible to reset both the fans and controller to factory default using "Advanced Menu" and
"Factory Reset" and configuring the network from the beginning, see 4.3.1 Configuring fans in the factory default
setting
Note: Only fans pre-configured with a MDC can benefit from the "Existing Fan Array" option. If that is not the
case, please use "Factory Reset" and then follow the procedure on 4.3.1 Configuring the MDC with fans that
are in their factory default setting
4.4 Fan Status screen
When the MDC has finished addressing all fans in the array, the new Modbus address and serial number of each
fan will be saved in non-volatile memory in the MDC. For large groups of fans in an array this may take some time
as the MDC must interrogate each individual fan for their serial numbers. Once completed, a "Change Fan Address"
prompt screen will appear in case it is desirable to change the fan addressing order.
These procedures will only happen once per array. The MDC will then default to 'Monitor' operating mode and the
status screen of Fan 1 will be displayed as shown in Figure 6 below:
All Fans Healthy:
Green LED on
Yellow and Red LEDs off
From now on, the operating mode can be changed using the Main Menu screen which is accessible by pressing
the BACK button twice whilst on Fan 1 status screen. See Section 5.0 Operating Modes for more details.
There are several parameters displayed for each fan:
•
Fan Condition – Healthy / Alarm / Warning / No Comms
•
Warnings – Description of warnings being experienced by the fan
•
Power – Power consumption (W)
•
Speed – Real-time fan speed (RPM)
•
Motor temperature -
•
Electronics Temperature -
•
Hours Run – Number of fan operational hours
•
Fan control - % of maximum input signal
•
Serial Number – Manufacturing serial number
There is a maximum of four lines on the display screen. To display a different monitoring parameter, use the 'UP'
and 'DOWN' buttons to scroll through the information for each fan. Three parameters can be displayed at a time
The fan number and condition header are always present when the fan is being monitored. A fan can have one of
the following conditions at any given time:
•
Healthy
•
Alarm
•
Warning
•
No Comms -
The fan conditions Alarm, Warning and No Comms are discussed in further detail on Section 6.0 Fault Indication.
To change to a different fan in the array use the ENTER / BACK buttons to scroll through the fan array.
210-OMI14229-Iss2
© ebm-papst UK Ltd 2018
Figure 6 - Fan status screen
C
o
C
o
-
When the fan is fully operational
-
When the fan has one or more alarms
-
When the fan has one or more warnings
When the fan or the controller has lost communication with the Modbus network
Operation & Maintenance Instructions
Chelmsford Business Park Chelmsford Essex CM2 5EZ
Telephone: +44(0)1245468555 Fax: +44(0)1245466336
e-mail
sales@uk.ebmpapst.com
Header with Fan Number and
Fan Condition
Parameters
being monitored
Page 11 of 45
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