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Chapter 3 Paramters/Functions Innovation Series Medium Voltage GP Type - G Drives GEH-6385
Line Monitor
The Line Monitor function monitors the AC line voltage and frequency and
compares them to accepta ble limits. Several faults may resu lt. The Drive
Commissioning wizard automatically configures this function. Run the Line
Protection Setup wizard to reconfigure this function.
Function inputs
The following table specifies the input parameters of the Line Monitor function.
Parameter Description
Line volt check fil Filter value for input signal Line monitor volt, Radians/second
Line frq check fil Filter value for input signal Line monitor frq, Radians/second
The following table specifies the input variables of the Line Monitor function.
Variable Description
Line monitor volt AC line voltage magnitude, filtered by Line volt check fil
Line monitor frq AC line frequency, filtered by Line frq check fil
Function configuration
The following table specifies the input parameters of the Line Monitor function.
These parameters ar e automatically configured by the Drive Commissioning wizard
but can be reconfig ured in the wizard.
Parameter Description
Line OV fault level Ac line voltage above which the AC line over voltage trip fault
occurs
Line OV alarm level Ac line voltage above which the AC line voltage high alarm
occurs
Line OV alarm clear Ac line voltage below which the AC line voltage high alarm
goes away
Line UV fault level Ac line voltage below which the AC line under volt trip fault
occurs
Line UV alarm level Ac line voltage below which the AC line volts low alarm occurs
Line UV alarm clear Ac line voltage above which the AC line volts low alarm goes
away
Over freq flt level Ac line frequency above which the AC line over freq trip fault
occurs
Over freq alm level Ac line frequency above which the AC line freq high alarm
occurs
Over freq alm clear Ac line frequency below which the AC line freq high alarm
goes away
Under freq flt level Ac line frequency below which the AC line under freq trip fault
occurs
Under freq alm level Ac line frequency below which the AC line f req low alarm
occurs
Under freq alarm clr Ac line frequency above which the AC line freq low alarm goes
away