12 Descriptions of Parameter Settings | VFD-ED
06 Protection Parameters
: You can set this parameter during operation
Low Voltage Level
Control Mode
VF VFPG SVC FOCPG FOCPM Default: 180.0/360.0
Settings 230V models: 160.0–220.0 V
460V models: 320.0–440.0 V
Sets the Lv level.
LV
Pr. 06-00
30V(60V)
input voltage
Input Phase-loss Protection during Operation
Control Mode
VF VFPG SVC FOCPG FOCPM Default: 2
Settings 0: Warn and keep operation
1: Fault and ramp to stop
2: Fault and coast to stop
Sets the phase-loss protection action for power at input side. The phase-loss affects the drive’s control
characteristics and life.
When Pr.06-01 is set to 1 (Fault and ramp to stop), if brake or operation contactor is OFF under the
circumstance that STO or MI40 (Enable drive function) is not deactivated during deceleration, elevator still
runs even brake has engaged (brake wear), and electric arc occurs when operation contactor is OFF.
Over-current Stall Prevention during Acceleration
Control Mode
VF VFPG SVC Default: 0
Settings 0: Disable
0–250% (rated current of the motor drive)
During acceleration, the AC motor drive output current may increase abruptly and exceed the value
specified in Pr.06-02 due to rapid acceleration or excessive load on the motor. When you enable this
function, the AC motor drive stops accelerating and keeps the output frequency constant until the current
drops below the maximum value.
06-02
Over-Current
Detection
Lev
el
Output
Frequency
Over-Current Stall
prevention during
Acceleration,
frequency held
time
actual acceleration time when over-current stall
prevention is enabled
current