Velocity Input Configuration
GAPn_VIBn:
VibType - VibLmAccel, VibVelomitor, and VibSeismic are used for Velocity.
Scale – Conversion from Volts to engineering units (EU). Typically, units are Volts/ips.
LMlpcutoff – LM 1X Tracking Filter low-pass cutoff. Effective LM 1X Tracking Filter bandwidth is twice the value of this
field.
TMR_DiffLimt – TMR Voter Disagreement Detection Diagnostic alarm threshold for GAPn_VIBn value. Value is expressed
as absolute difference in Volts.
GnBiasOvride, Gain, Snsr_Offset – See Gain/Bias Override
SysLimit#, SysLim#Enabl, SysLim#Latch, SysLim#Type – Refer to System Limits feature.
Note Scale_Off – Unused for this sensor type.
VIBn:
VIB_CalcSel – Select calculation method for VIBn value between Peak Velocity and RMS Velocity.
Note If OperatingMode is Legacy, this value is ignored and legacy Peak-to-Peak algorithm is used.
FilterType – Select Wideband Filter type for Velocity data. Selections are None, Lowpass, Highpass, Bandpass.
Filtrhpcutoff, Filtrlpcutoff – Cutoff (-3dB) point for high-pass and low-pass filters, respectively.
Fltrhpattn, Fltrlpattn – Attenuation for high-pass and low-pass filters, expressed as number of poles to use in Butterworth
filters. Selections are 2-pole, 4-pole, 6-pole, 8-pole, and 10-pole.
TMR_DiffLimt – TMR Voter Disagreement Detection Diagnostic alarm threshold for VIBn value. Value is expressed as
absolute difference in EU.
SysLimit#, SysLim#Enabl, SysLim#Latch, SysLim#Type – Refer to System Limits feature.
LMVibnA, LMVibnB, LMVibnC:
TMR_DiffLimt – TMR Voter Disagreement Detection Diagnostic alarm threshold for LMVibnA/B/C value. Value is
expressed as absolute difference in EU.
SysLimit#, SysLim#Enabl, SysLim#Latch, SysLim#Type – Refer to System Limits feature.
254 GEH-6855_Vol_II GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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