Group E9: Power Loss Ride Through - Canworld CDE360 Series Manual

CDE360 Vector Control AC Drive

Group E9: Power Loss Ride Through

Upon power loss ride through or sudden voltage dip, the DC bus voltage of the AC drive
reduces. This function enables the AC drive to compensate the DC bus voltage reduction with the
load feedback energy by reducing the output frequency so as to keep the AC drive running
continuously.
Upon power loss ride through or sudden voltage dip, the AC drive decelerates. Once the bus
voltage resumes to normal, the AC drive accelerates to the set frequency. If the bus voltage remains
normal for the time exceeding the value set in E9.03, it is considered that the bus voltage resumes
to normal.
Action selection at
power loss ride through
Action judging voltage at
power loss ride through
Table 6- 16 The base value of E9.01 under different input voltage level
Input voltage level
Single-phase 220V
Three-phase 220V
Three-phase 380V
Action pause judging voltage
at power loss ride through
Voltage rally judging time at
power loss ride through
E9.00 Range: 0~1
0: Disabled
1: Enabled
E9.01 Range: 40.0~150.0
Unit: %
The AC drive begins to decelerate when the DC bus voltage
is lower than E9.01.This is a relative value, and the base
value is shown in the following table.
Base value
311V
311V
537V
E9.02 Range: 60.0~150.0
Unit: %
See the description of Figure below.
E9.03 Range: 0.00~50.00
Unit: Sec
See the description of Figure below.
Power grid
Bus voltage
E9.02
E9.01
Output
frequency
Figure 6- 50 Power loss ride through diagram(E9.00 = 1)
Input voltage level
Three-phase 480V
Three-phase 690V
Three-phase 1140V
Power off
E9.03
Chapter 6 Parameters Description
Default: 0
Default: 80.0
Base value
670V
975V
1600V
Default: 100.0
Default: 0.50
Time