Delta VFD-A, Руководство пользователя

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Pr.25
Over-voltage Stall Prevention
Parameter # 25
Parameter Name Over-voltage stall prevention during deceleration
Factory Setting d0001
Settings d0000 Disable over-voltage stall prevention
d0001 Enable over-voltage stall prevention
During deceleration, the motor DC bus voltage may exceed its maximum allowable
value due to motor regeneration. When Pr.25 is enabled and an over-voltage is
detected, the AC drive will cease to decelerate and will then maintain a constant
output frequency. The drive will only resume deceleration when the DC bus voltage
drops below the preset value.
Time
DC bus
voltage
Over voltage
detection
level
Output
frequency
Time
Over voltage stall prevention
Pr.26 Pr.27
Over-current Stall Prevention
Parameter # 26
Parameter Name Over-current stall prevention during acceleration
Factory Setting d0170 %
Units 1%
Parameter value d0050 - d0200 %
During periods of rapid acceleration or excessive load on the motor, the AC drive
output current may increase abruptly and exceed the value specified by Pr.26.
When over-current occurs, the AC drive will cease to accelerate and will maintain a
constant output frequency until the current falls below the preset value. (The drive
will only resume acceleration when the current drops below the preset value.)