BENSHAW Rsi S Series, Инструкция по эксплуатации

Страница: 179 / 398

Learning Advanced Features
167
Code Description
Cn.78 KEB Start Lev,
Cn.79 KEB Stop Lev
Sets the start and stop points of the KEB (kinetic energy buffering) operation.
The set values aer be based on the low voltage trip level as 100% and the stop
level (Cn. 79) must be set higher than the start level (Cn.78).
Cn.80 KEB P Gain
The controller P Gain is for maintaining the voltage of the DC power
section during the KEB (kinetic energy buffering) operation. Increase the
setting when a low voltage trip occurs right after a power failure.
Cn.81 KEB I Gain
The controller I Gain is for maintaining the voltage of the DC power
section during the KEB (kinetic energy buffering) operation. Decrease the
gain to maintain the frequency during KEB operation until the inverter
stops.
Cn.82 KEB Slip Gain
The slip gain is for preventing a low voltage trip due to load when the kinetic
energy buffering operation starts after power is disconnected.
Cn.83 KEB Acc Time
Set the acceleration time to the operation frequency when operation changes
from KEB (kinetic energy buffering) to normal operation when the input
power is restored.
Depending on the duration of the power interruptions and the amount of load inertia, a low voltage
trip may still occur even during kinetic energy buffering operation. Motors may vibrate during kinetic
energy buffering operation for some loads except variable torque load (for example, fan or pump
loads).