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C:\Users\Service-Eng\Desktop\Mx\Manuals\ULB-R110 MANUAL_rev02.docx Page
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Safeties
Any alarm condition existing in the load bank is indicated by load bank ‘SAFETY NOT OK’
indication on the top right corner of the main screen on HMI. To investigate ‘SAFETY NOT
OK’ status, click <SAFETY> button on Main screen to see following screen (see figure-2)
Figure-2 Safety Parameters
Al
l load steps are disabled and load cannot be applied unless all above parameters are in
OK status (Green Color).
Following table show various alarm conditions and their settings (See table-1)
Sr no
Alarm Conditions
Settings
Note
1
Over voltage at 480VAC
510VAC
Settable in fault setting
screen in Maint. Mode
2
Over voltage at 240VAC
255VAC
Settable in fault setting
screen in Maint. Mode
3
3 PH Current Imbalance at 480VAC
5 AMP
Settable in fault setting
screen in Maint. Mode
4
3 PH Current Imbalance at 240VAC
10 AMP
Settable in fault setting
screen in Maint. Mode
5
Over Temperature
High Exhaust
Temperature in Heater
element section
6
Fan Fault
2.65 amp
Set over dial on
E503A CSR current
switch
7
3 PH Voltage Imbalance at
240/480VAC
15V
Settable in fault setting
screen in Maint. Mode
Table-1
