Goodrive350-19 series VFD for crane
Commissioning guidelines
-78-
torque verification time P90.30 is reached, the torque verification fault tPF is reported.
Torque
verification time
P90.30
Torque verification
delay 60ms
Torque (%)
Frequency (Hz)
In closed-loop mode, if the brake slip fault delay P93.01 is greater than 0, the brake slip detection
function is enabled. During torque verification, if the motor (encoder) speed exceeds the set brake slip
speed threshold P93.00 and the situation duration exceeds P93.01, the brake failure fault bE is
reported.
The torque verification and brake slip flowchart is as follows:
Start
Enable brake
control
Motor torque >
Torque
verification
reference?
Motor speed <
Slip speed limit?
Y
N
N
Brake system starts
checking
Torque reference
Brake slip speed limit
reference
Torque verification
pass
Torque slip pass
Torque verification pass
Torque slip pass
Brake system allows to
open the brake
Y
Torque verification
fault detection time
reached
Brake slip fault delay
reached
Reports brake slip
fault
Reports torque
verification fault
