KEB COMBIVERT F5 Reference Manual

212
LX - Special Function Parameters
This parameter can be used to trigger a drive warning/error if the actual motor
speed deviates from the contract speed or command speed by more than the
window dened in parameter LX14.
This function only works in closed loop speed control mode (i.e. LC01 = Closed
Loop FOC, Closed Loop Analog Pretorque, Closed Loop Digital Pretorque,
Closed Loop Synthetic Pretorque).
Setting: Description: NUM
Warning - Digital
Output
Speed following error drops output programmed
as ‘At Speed’. Warning is then to be handled
externally to the drive.
0
On with Error
% of contract
speed
Speed following error drops ‘At Speed’ output
and drive trips into error “Speed Following Error”
when actual motor speed deviates from contract
speed by more than the window dened in LX14.
1
On with Error
% of command
speed
Speed following error drops ‘At Speed’ output
and drive trips into error “Speed Following Error”
when actual motor speed deviates from the
command speed by more than window dened
in LX14. For speeds below 10 FPM the fault will
be triggered when the difference between the
command speed and motor speed is at a xed
speed value dependent on the Machine Data
parameters LN01-05.
2
Default = Warning- Digital Output (0)
The time window for which the duration of LX14 Speed Difference must
occur for the Speed Following Error is xed at 1.0 sec.
Sets the +/- window for the speed following error in percent of the contract
speed.
Default = 10%
LX13
Speed Following Error
i
LX14
Speed Difference

KEB COMBIVERT F5 Specifications

General

Category	DC Drives
Enclosure Rating	IP20
Control Mode	Vector Control, V/f Control
Protection	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Fieldbus Communication	PROFIBUS, CANopen
Communication Interfaces	RS-485
Input Voltage	380-480V AC
Cooling Method	Forced air cooling (fan)