Chapter 12 Description of Parameter SettingsMS300 (High Speed Model)
12-06-1
06 Protection Parameters (1) This parameter can be set during operation.
Low Voltage Level
Factory Setting:
Settings 230 V: 150.0~220.0 VDC 180.0
460 V: 300.0~440.0 VDC 360.0
This parameter is used to set the Low Voltage (LV) level. When the DC-BUS voltage is lower than
Pr. 06-00, drive will stop output and free to stop.
If LV fault is triggered during operation, the 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 according to the status of acceleration / deceleration. These faults
need to be RESET manually to restart the drive, while setting restart after momentary power off
function (Refer to Pr. 07-06 and Pr. 07-07), the drive will restart automatically.
If LV fault is triggered when the drive is in stop status, the drive will display LvS (LV during stop),
which will not be recorded, and the drive will restart automatically when input voltage is higher
than LV level 30V (230V series) or 60V (460V series).
LV
Pr. 06-00
30V(60V)
input voltage
Over-voltage Stall Prevention
Settings 0: Disabled Factory Setting:
230 V: 0.0~450.0 VDC 380.0
460 V: 0.0~900.0 VDC 760.0
When Pr. 06-01 is set to 0.0, the over-voltage stall prevention function is disabled (connected with
braking unit or braking resistor). This setting is recommended when braking units or resistors are
connected to the drive.
When the setting value 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 activated, 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
Multi-function output (Relay), Pr. 02-16~Pr. 02-17 Multi-function output (MO1, 2), 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 stall prevention
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