Emotron VSB Instruction Manual Chapter 6 Specification of Parameters
the motor.
d1-09 Torque boost Range: 0.0% - 30.0%
Factory default:
Under V/f pattern, output voltage at low frequency can be compensated by this parameter,
improving the torque output. 0.0% corresponds to automatic torque boost, and drive output
voltage is automatically compensated via detection of load current. Automatic torque boost is
valid only for linear V/f pattern.
100% of torque boost corresponds to rated voltage of motor. A non-zero value means the
output voltage rises on the basis of V/f curve and this takes effect at parameter values 0 - 6 of
d1-00. It is suggested this parameter value be gradually increased from zero until the starting
requirement is met. Boost value is not suggested to be set to a relatively big one, as it is likely
to bring about a bigger drive current and higher motor temperature.
Torque boost diagram is shown in Fig. 6-32:
Fig. 6-32
d1-10 Slip compensation gain Range: 0.0% - 400.0%
Factory default:
Used under V/f control. When the motor is driving an electric-driven load, motor speed drops
with the increase of load. When the motor is driving a power generating load, motor speed will
increase with the increase of load. Appropriate slip compensation gain can maintain constant
motor speed when the motor load is changing.
To ensure the performance of slip compensation gain, setting motor rated speed d0-06 is
essential. The difference between d0-06 and the motor running speed without load is the rated
slip. Through real-time detection of motor load, slip compensation automatically adjusts the
drive output frequency on the basis of rated slip and motor load, reducing the impact of
changing load on motor speed.
0
输出频率（Hz）
输出电压（
V）
电机额定频率
电机额定电压
提升量
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