Application Overview 2-18
Table 2.21 – Operating Status
Index Va r i a b l e N a m e Variab l e Ty p e Description
nv14 nvoSpdStptFb SNVT_lev_percent Reports the speed setpoint as a percentage of nciNmlFreq
nv15 nvoSpdCmd SNVT_lev_percent Reports the speed command as a percentage of nciNmlFreq regardless of command source
nv16 nvoPIDFb SNVT_lev_percent Reports the PID feedback as a percentage of nciNmlFreq
nv17 nvoDrvBus SNVT_volt Reports DC Bus voltage
nv18 nvoReadParamVal SNVT_count Reports value of requested parameter
nv19 nviDrvFltRst SNVT_switch Resets a drive fault
nv20 nvoRunStp SNVT_switch Reports the Run/Stop status of the drive
nv21 nvoDrvFlt SNVT_switch Reports drive fault condition
nv22 nvoDrvParamErr SNVT_count Reports parameter access error
nv23 nvoDrvTemp SNVT_temp Reports drive temperature
nv24 nvoDrvEnergyKwh SNVT_elec_kwh Reports cumulative energy in kWh
nv25 nvoDrvEnergyMwh SNVT_elec_kwh Reports cumulative energy in mWh
# Reading Other Parameters - nviReadParamNum, nvoReadParamNum
Two network variables are defined for reading any drive parameter:
nviReadParamNum - Specifies the parameter to be read.
nvoReadParamVal - Reports the value of the specified parameter.
Refer to the appropriate Technical Manual for a detailed description of all parameters.
Note: The increment listed in the user, programming, tecnical and parameter access manuals must be considered when interpreting a reported
value. For example, a read of b2-04, DC Injection Time at Stop, which reports 100 in nvoReadParamVal is actually a setting of 1.00
sec, since the increment for this parameter is 0.01 seconds.
# Configurable Network Traffic
This section describes the configuration properties available for customizing the drive’s periodic traffic on the network.
# Send Heartbeat - nciSndHrtBt
This configuration property defines the maximum period of time that expires before the current values of nvoDrvCurnt, nvoDrvSpeed,
nvoDrvVolt, and nvoDrvPwr are automatically transmitted. When enabled, this functionality is intended to indicate to the network that this node
is functioning normally. When disabled, the values of these variables are only transmitted upon change.
The default value for this configuration property is 0, which is the disabled state.
# Minimum Send Time - nciMinOutTm
This configuration property defines the minimum period of time between updates of output network variables. When enabled, this functionality
reduces network traffic by limiting the automatic propagation of network variables. When disabled, changes in these network variables are
transmitted on each change.
The default value for this configuration property is 1 second.
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