Chapter 12 Description of Parameter Settings|CFP2000 Series
12.1-06-1
06 Protection Parameters This parameter can be set during operation.
Low Voltage Level
Factory Setting: 360.0
Settings 300.0~440.0Vdc
This parameter is used to set the Low Voltage level. When the DC BUS voltage is lower than
Pr.06-00, drive will stop output and free to stop.
If the drive is triggered LV fault during the operation, drive will stop output and free to stop. There
are three LV faults, LvA (LV during acceleration), LvD (LV during deceleration), and LvN (LV in
constant speed) which will be triggered in different stage of drive operation. These faults need to
be reset manually to restart the drive, while setting restart after momentary power off function
(Pr.07-06, Pr.07-07), the drive will restart automatically.
If LV is triggered when the drive is in stop status, the fault is named LvS (LV during stop), which
will not be recorded, and the drive will restart automatically when input voltage is 30Vdc (230V
series) or 60Vdc (460V series) higher than LV level.
LV
Pr. 06-00
30V(60V)
input voltage
Over-voltage Stall Prevention
Factory Setting: 760.0
Settings 700.0~900.0V
0: Disabled
When Pr.06-01 is set to 0.0, the over-voltage stall prevention function is disabled. When braking
units or resistors are connected to the drive, this setting is suggested.
When the setting is not 0.0, the over-voltage stall prevention is activated. This setting should refer
to power supply system and loading. If the setting is too low, then over-voltage stall prevention
will be easily activate, which may increase deceleration time.
Related parameters: Pr.01-13, Pr.01-15, Pr.01-17, Pr.01-19 Decel. Time 1~4, Pr.02-13~Pr.02-15
Multiple-function output (Relay 1, 2 and 3) and Pr.06-02 selection for over-voltage stall
prevention.
Selection for Over-voltage Stall Prevention
Factory Setting: 0
Settings 0: Traditional over-voltage stall prevention
1: Smart over-voltage prevention
This function is used for the occasion that the load inertia is unsure. When it stops in the normal
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