Delta VFD-EL-W Series User Manual

Chapter 4 Parameters｜VFD-EL-W
116
08.04
Momentary Power Loss Action
Default: 0
Settings
0: Stop operation
1: Operation continues after momentary power loss, speed search starts
with the last frequency
2: Operation continues after momentary power loss, speed search starts
with the minimum frequency
 Determines the operation mode when the drive restarts from a momentary power loss.
08.05
Maximum Allowable Power Loss Time
Default: 2.0
Settings
0.1–20.0 sec.
 Determines the maximum time of allowable power loss. If the duration of a power loss exceeds
this parameter setting, the AC motor drive stops output after the power recovers.
 The selected operation after power loss in Pr.08.04 is only executed when the maximum
allowable power loss time is ≤ 5 seconds and the AC motor drive keypad displays “Lv”. If the AC
motor drive is powered off due to overload, even if the maximum allowable power loss time is ≤
5 seconds, the drive does not execute the operation mode you set for Pr.08.04. In that case it
starts up normally.
08.06
Base Block Speed Search
Default: 1
Settings
0: not using
1: Speed search starts with the last speed before B.B.
2: Speed search starts with the minimum speed (Pr.01.05)
 Determines the AC motor drive restart method after an External Base Block is enabled.
Output frequency
(H)
Output voltage(V)
08.08 Current Limit
for Speed SearchSpeed
FWD Run
Time
B.B.
Fig 1:B.B. Speed Search with Last Output Frequency Downward Timing Chart
(Speed Search Current Attains Speed Search Level)
A
Input B.B. signal
Stop output voltage
Disable B.B. signal
Waiting time 08.07
Speed Search
Synchronization speed detection

Delta VFD-EL-W Series Specifications

General

Brand	Delta
Model	VFD-EL-W Series
Category	DC Drives
Language	English