YASKAWA HV600

5.2 b: Application
226 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
■ b8-04: Energy Saving Coefficient Value
No.
(Hex.)
Name Description
Default
(Range)
b8-04
(01CF)
Expert
Energy Saving Coefficient
Value
Sets the Energy-saving control coefficient to maintain maximum motor efficiency. The default setting
is for Yaskawa motors.
Determined by E2-11 and
o2-04
(0.00 - 655.00)
When you use a motor from a different manufacturer, increase the setting value in 5% increments to find the
minimum value for U1-08 [Output Power] at light loads.
When you decrease the setting value, it decreases the output voltage and decreases power consumption. If the setting
value is too low, the motor will stall.
Note:
• When you do Rotational Auto-Tuning, the drive will automatically set the energy-saving coefficient.
• The minimum values and the maximum values are different for different drive models.
–2011 to 2024, 4005 to 4008: 0.0 - 2000.0
–2031 to 2273, 4011 to 4302: 0.00 - 655.00
■ b8-05: Power Detection Filter Time
No.
(Hex.)
Name Description
Default
(Range)
b8-05
(01D0)
Expert
Power Detection Filter Time Sets the time constant to measure output power. 20 ms
(0 - 2000 ms)
Decrease the setting value to increase responsiveness to load changes. If you set the value too low during operation at
light loads, motor speed is not stable.
■ b8-06: Search Operation Voltage Limit
No.
(Hex.)
Name Description
Default
(Range)
b8-06
(01D1)
Expert
Search Operation Voltage
Limit
Sets the voltage limit for Search Operation as a percentage of the motor rated voltage. 0%
(0 - 100%)
The Search Operation changes the output voltage in small increments to find a setpoint at which the drive can use
minimum power to operate.
Set this parameter to 0 to disable Search Operation. This will not disable Energy-saving control.
If the setting value is too low, the motor will stall when loads suddenly increase.