Chapter 4 Parameters|
4-132 Revision Jan. 2009, 06EE, SW--PW V1.12/CTL V2.12
It keeps the drive from running at the resonance frequency of machinery or load system or
other inhibition frequency. There are three frequency areas can be set.
These parameters set the Skip Frequencies. It will cause the AC motor drive never to remain
within these frequency ranges with continuous frequency output. These six parameters should
be set as follows Pr.08.09 ≥ Pr.08.10 ≥ Pr.08.11 ≥ Pr.08.12 ≥ Pr.08.13 ≥ Pr.08.14. When it is
set to 0.0, the skip frequency is invalid.
The frequency command (F) can be set within the range of skip frequency. At this moment, the
output frequency (H) will be less than the lower limit of skip frequency.
When the drive accelerates/decelerates, the output frequency will pass the range of skip
frequency.
0
08.09
08.10
08.11
08.12
08.13
08.14
Internal
Frequency
Command
Setting frequency command
frequency is decreased
frequency is increased
08.15 Auto Restart After Fault Unit: 1
Settings 0 to 10 Factory Setting: 0
0 Disable
Only after an over-current OC or over-voltage OV fault occurs, the AC motor drive can be
reset/restarted automatically up to 10 times.
Setting this parameter to 0 will disable automatic reset/restart operation after any fault has
occurred.
When enabled, the AC motor drive will restart with speed search, which starts at the frequency
before the fault. To set the waiting time before restart after a fault, please set Pr. 08.07 Base
Block Time for Speed Search.
When the fault times exceeds Pr.08.15 setting, the drive will refuse to restart and the user
needs to press “RESET” for continuous operation.
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