LS ELECTRIC SV-iS7 Series, User Manual

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Learning Advanced Features
Adv
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Feat
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293
Press Regeneration Prevention Details
Code Description
ADV-73 RegenAvd
Mode
Set the motor operation mode to decide when the regeneration
evasion function is activated.
ADV-74 RegenAvd Sel
(select regeneration
evasion function for
press)
Frequent regeneration voltage from a press load during a constant
speed motor operation may put excessive stress on the brake unit, which
may damage or shorten brake life. To prevent this, select ADV-74
(RegenAvd Sel) to control DC link voltage and disable the brake unit
operation.
ADV-75 RegenAvd
Level (set regeneration
evasion level for press)
Set brake operation prevention level voltage when the DC link voltage
goes up due to regeneration.
ADV-76 CompFreq
Limit (limit
regeneration evasion
compensation
frequency for press)
Set an alternative frequency width that can replace the actual operation
frequency during regeneration prevention.
ADV-77 RegenAvd P
gain
Set a P gain for regeneration evasion compensation function.
To avoid the regeneration zone, set P-Gain in the DC link voltage
suppress PI controller.
ADV-78 RegenAvd I
gain
Set an I gain for regeneration evasion compensation function.
To avoid the regeneration zone, set I gain in the DC link voltage suppress
PI controller.
Press regeneration prevention does not operate during acceleration or deceleration; it only
operates during constant speed motor operation. When regeneration prevention is activated, the
output frequency may change within the range set at ADV-76 (CompFreq Limit).
8.41 Anti-Hunting Regulator
Group Code Name LCD Display Parameter Setting Setting Range Unit
CON 90
Function selection for
preventing current
New AHR Sel. 1 Yes - -