94 ADV100 • Functions description and parameters list
Example 1) End of ramp and mains supply not restored
The drive controls a deceleration with the ramp set in Powerlossdeceltime.
The drive automatically controls the DC link voltage and prevents the Overvoltage alarm.
If the mains supply is not restored close to a speed of zero, when there is insufcient regenerated power, the Under-
voltage alarm is generated and the drive may switch itself off.
Drv enable
Vdc
Powerloss
Next active
Powerloss
Ramp down
Powerloss
Next ratio
PowerLoss_02.vsd
Ramp down and mains supply not restored
Power supply
The drive switches itself off if
the power supply is not restored
The mains supply is not restored while the function is enabled
Speed ref
Speed
Speed
Speed ref
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