Chapter 5 Parameters
VFD-E Series
5-86 Revision August 2006, 01EE, SW--PW V1.03/CTL V2.03
08.19
Software Braking Level
(the Action Level of the Brake resistor)
Unit: 1
Settings 115/230V series: 370.0 to 430.0V Factory Setting: 380.0
460V series: 740.0 to 860.0V Factory Setting: 760.0
This parameter sets the DC-bus voltage at which the brake chopper is activated.
This parameter will be invalid for Frame A models (VFD002E11A/21A/23A,
VFD004E11A/21A/23A/43A, VFD007E21A/23A/43A and VFD022E23A/43A) without brake
chopper for which BUE brake unit must be used.
a08.20
Compensation Coefficient for Motor Instability
Unit: 0.1
Settings 0.0~5.0 Factory Setting: 0.0
The drift current will occur in a specific zone of the motor and it will make motor instable. By
using this parameter, it will improve this situation greatly.
The drift current zone of the high-power motors is usually in the low frequency area.
It is recommended to set to more than 2.0.
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