User Guide
Table Of Contents
- 1. General
- 2. LonWorks C4 Option Board Technical Data
- 3. LonWorks Fieldbus C4 Option Board Layout and Connections
- 4. Installation of Honeywell NX LonWorks C4 Option Board
- 5. Commissioning
- 6. LonWorks Interface
- 7. Fault Tracking
- 8. Appendix 1
- 9. General Info
- 10. BACnet CJ Option Board Technical data
- 11. Bacnet Fieldbus CJ Option Board Layout and Connections
- 12. Grounding Cable Shield
- 13. Led Indications
- 14. Installation of Honeywell NX BACnet CJ Option Board
- 15. Commissioning
- 16. Fault Tracking
26 LonWorks Interface Honeywell
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 14. 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.
nciMinOutTime
This configuration property defines the minimum period of automatic network variable
tansmission.
nciNmlSpeed
This configuration property is used to provide the nominal speed of the motor in RPM. This
value is necessary to determine the minimum and maximum speeds for the motor, based on
the configuration properties nciMinSpeed, nciMaxSpeed (entered as a percentage of nominal
speed).