Amtech Axpert-Eazy Series Instruction Manual page 114

B318: KEB Selection
This parameter will select the KEB function.
0:Disable 1:Enable
B319: KEB Threshold Level
This parameter will select the KEB function.
B320: KEB Kp
This parameter is used to set the proportional gain of KEB PID controller.
B321: KEB Ti
This parameter is used to set the integral time constant of KEB PID controller.
B322: KEB Td
This parameter is used to set the derivative time constant of KEB PID controller.
6
Example: 400 Volt series drive
VDC level
Presetting KEB Threshold level (B319)
KEB ON level
KEB OFF level = VDC level * (B319 +5) * 0.01 = 560 * 85 * 0.01 = 476 VDC
B323: Voltage Reduction Time
This setting value is the time to reduce the output voltage from the V/f setting value to 0V after the
output frequency reaches the set frequency. Normally, the default value (10.0) is set. When using for
loads with sudden torque fluctuations, and the output frequency drops remarkably with the stall
current limit function, set an appropriately low value. If the rotation becomes unstable during the
voltage reduction or recovery operations causing a trip, set an appropriately high value.
B324: Voltage Lower Limit Setting Value
Set a value between 50 and 99 while the inverter is stopped to select the high-efficiency operation
function. When not using the high-efficiency operation function, set 100 while the inverter is stopped.
This setting value is the lower limit of the output voltage reduced when the high-efficiency operation
function is selected, and uses the V/f setting voltage (output voltage when not using high-efficiency
Amtech
6-68
= 415 VAC * 1.35 = 560 VDC
= 80%
= VDC level * B319 * 0.01 = 560 * 80 * 0.01 = 448 VDC