KEB COMBIVERT F5 User Manual

80
The goal is to adjust timer US.17
such that the pre-torque ramp down
phase occurs exactly when the brake
releases and the roll back occurs.
Note: by monitoring LF.86 it is possible
to see what phase the drive is in. A
value of 4 is the ramp up phase and
is controlled by US.17. A value of 3
is the ramp down phase US.18.
When adjusted properly, the brake
should pick, the motor holds the load
for a short period about ¼ second,
and then the acceleration begins.
Enable &
Direction ON
Current
check
300mS
Pretorque
ramp up
timer
US.17
Ramp
down timer
US.18
Enable &
Direction ON
Current
check
300mS
Pretorque
ramp up
timer
US.17
Ramp
down timer
US.18
Initial Start Up

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)