CHAPTER 5 LONWORKS COMMUNICATION FUNCTION
15
5.4.6 Nominal Frequency (SNVT_freq_hz nciNmlFreq)
This configuration property is used to provide the nominal frequency of the motor. This value is necessary to
determine the minimum and maximum frequency.
Default value: 50 Hz
5.4.7 Minimum Speed (SNVT_lev_percent nciMinSpeed)
This configuration property is used to define the minimum speed of a motor. It’s value is entered as a
percent of nominal frequency, as defined by the Nominal frequency (nciNmlFreq) configuration value. Set
this parameter when drive is stopped for best result, since this is a write protected parameter in SJ300/L300P
when drive is running. If parameter is set when running it will only be saved in optionboard and not in drive.
If the running ordered frequency is lower then nciMinSpeed, ordered frequency will not be highered.
NciMinSpeed will be in effect on the next frequency setting.
If nciNmlFreq = 50Hz and nciMinSpeed = 10%, the minimum frequency is 5Hz.
-163.84
≤
minimum speed
≤
maximum speed
≤
163.83
Default value: 0%
5.4.8 Maximum Speed (SNVT_lev_percent nciMaxSpeed)
This configuration property is used to define the maximum speed of a motor. It’s value is entered as a
percent of nominal speed, as defined by the Nominal Speed (nciNomSpeed) configuration value. Set this
parameter when drive is stopped for best result, since this is a write protected parameter in SJ300/L300P
when drive is running. If parameter is set when running it will only be saved in optionboard and not in drive.
If the running ordered frequency is higher then nciMaxSpeed, ordered frequency will not be lowered.
NciMaxSpeed will be in effect on the next frequency setting.
If nciNmlFreq = 50Hz and nciMaxSpeed = 125%, the maximum frequency is 65.5Hz.
The value of the maximum speed must be validated against the value of the minimum speed as follows:
-163.84
≤
minimum speed
≤
maximum speed
≤
163.83
Default value: 100%
5.4.9 Ramp Up Time (SNVT_time_sec nciRampUpTm)
This configuration property is used to set the ramp up time.
Default value: 30 Sec
5.4.10 Ramp Down Time (SNVT_time_sec nciRampDownTm)
This configuration property can optionally be used to provide to set the ramp down This configuration
property is used to set the ramp up time.
Default value: 30 Sec
5.4.11 Generic Parameter address setting, Write (SNVT_count nciWriAdr)
Chooses the parameter address (16 bits) to be written to the drive. Addresses in the 0xFFFF**** area can not
be reached.
Valid range: See SJ300/L300P manual.
