Protection Parameters - Delta C2000 Series User Manual

Chapter 12 Description of Parameter SettingsC2000

06 Protection Parameters

Low Voltage Level

Settings
 Sets the Low Voltage (Lv) level. When the DC BUS voltage is lower than Pr. 06-00, the drive
stops output and the motor free runs to a stop.
 If the Lv fault is triggered during operation, the drive stops output and the motor free runs to a
stop. There are three Lv faults: LvA (Lv during acceleration), Lvd (Lv during deceleration), and
Lvn (Lv in constant speed) that are triggered according to the status of acceleration or
deceleration. You must press RESET to clear the Lv fault. The drive automatically restarts if you
set to restart after momentary power loss (refer to Pr.07-06 Restart after Momentary Power Loss
and Pr.07-07 Allowed Power Loss Duration for details).
 If the Lv fault is triggered when the drive is in STOP status, the drive displays LvS (Lv during stop),
which is not recorded, and the drive restarts automatically when the input voltage is higher than
Pr. 06-00 + Lv return level (as listed below).
Lv Return Level
Frame A–D
Frame E–H
Over-voltage Stall Prevention

Settings
230V series:
Frame A–D (including D0): 150.0–220.0 V
Frame E and above: 190.0–220.0 V
460V series:
Frame A–D (including D0): 300.0–440.0 V
Frame E and above: 380.0–440.0 V
575V series: 420.0–520.0 V
690V series: 450.0–660.0 V
230V 460V
30V 60V
DC DC
40V 80V
DC DC
V
DC Bus Voltage
06-00
230V series: 0.0–450.0 V
460V series: 0.0–900.0V
575V series: 0.0–920.0 V
690V series: 0.0–1087.0 V
0: Disabled
12.1-06-1
 This parameter can be set during operation.
DC
DC
DC
DC
DC
DC
575V
100V
DC
Lv Return Level
Lv Error
time
DC
DC
DC
DC
Default:
180.0
200.0
360.0
400.0
470.0
480.0
690V
100V
DC
120V
DC
Default:
380.0/760.0/920.0/1087.0