Vacon OPTC4, User Manual

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6
6.4 Network Configuration Variables
Function Variable Name SNVT type
Maximum motor speed nciMaxSpeed SCPTmaxSetpoint
Minimum motor speed nciMinSpeed SCPTminSetpoint
Receive heartbeat time nciRcvHrtBt SCPTmaxRcvTime
Send heartbeat time nciSndHrtBt SCPTmaxSndTime
Minimum output time nciMinOutTime SCPTminSndTime
Nominal motor speed in RPM nciNmlSpeed SCPTnomRPM
Nominal motor frequency nciNmlFreq SCPTnomFreq
Minimum ramp up time nciRampUpTm SCPTrampUpTm
Minimum ramp down time nciRampDownTm SCPTrampDownTm
Default value for nviDrvSpeedScale nciDrvSpeedScale SCPTdefScale
Table 6-10. Network configuration variables
nciMaxSpeed
This configuration property is used to define the maximum speed of a motor. The value is entered as a
percentage of nominal speed in RPM, as defined by the Nominal Speed (nciNmlSpeed) configuration
value. The value of the maximum speed must be validated against the value of the minimum speed as
follows:
-163.840 < minimum speed < maximum speed < 163.830
nciMinSpeed
This configuration property is used to define the minimum speed of the motor. The value is entered as
a percentage of nominal speed in RPM, as defined by the Nominal Speed (nciNmlSpeed) configuration
value. The value of the minimum speed must be validated against the value of the maximum speed as
follows:
-163.840 < minimum speed < maximum speed < 163.830
nciRcvHrtBt
This configuration property is used to control the maximum time that elapses after the last update of
the network variables nviDrvSpeedStpt or nviDrvSpeedScale before the VSD object starts to use the
default values.
nciSndHrtBt
This configuration property defines the maximum period that expires before the network variables
nvoDrvSpeed, nvoDrvCurnt and nvoDrvPwr are automatically updated.