YASKAWA OYMC V1000, Programming Manual

Page: 75 / 408

1.2 b: Application
YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual 75
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Note: This default value changes if the motor rated capacity set to E2-11 is changed. The Energy
Saving coefficient is set automatically when Auto-Tuning for Energy Saving is performed (refer
to
Auto-Tuning on page 243 ).
■
b8-05: Power Detection Filter Time (V/f Control only)
The Energy Saving function continuously searches out the lowest output voltage in order to
achieve minimum output power. Parameter b8-05 determines how often the output power is
measured and the output voltage is adjusted.
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b8-06: Search Operation Voltage Limit (V/f Control only)
Sets the voltage limit for the optimal output voltage detection of Speed Search as a
percentage of the maximum output voltage. During the search operation the drive will keep
the output voltage above this level to prevent motor stalling.
Note: If set too low, the motor may stall with a sudden increase to the load. Disabled when b8-06 = 0.
Setting this value to 0 does not disable Energy Saving.
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Parameters Related to the Energy Saving Function
Open Loop Vector Control
V/f Control
No. Name Setting Range Default
b8-04 Energy Saving Coefficient Value 0.00 to 655.00
Determined by
o2-04 and
E2-11
No. Name Setting Range Default
b8-05 Power Detection Filter Time 0 to 2000 ms 20 ms
No. Name Setting Range Default
b8-06 Search Operation Voltage Limit 0 to 100% 0%
No.
<1> Automatically set when Rotational Auto-Tuning is performed.
<2> Default setting is determined by drive capacity (o2-04).
Parameter Name Setting Range Default
E2-02
<1>
Motor Rated Slip 0.00 to 20.00
<2>
No. Parameter Name Setting Range Default
E2-11
<1>
Motor Rated Capacity 0.00 to 650.00 kW
<2>