7 Detailed function description SV800/SV800A User Manual
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Note: Under vector control , if it cannot perform full-mode self-learning due to the restriction on the
transmission working condition, please enter motor electric constant according to the motor design sheet or
experience. Then perform DC mode self-learning again. For more details, please refer to "5.3 Induction
Motor Self-learning".
2: Perform full-mode self-learning
Full-mode self-learning selected. Under V/F control mode ,only DC mode self-learning will be
performed when full-mode self-learning selected; Please select full-mode self-learning for
vector control if no special case restriction.
No.
Name
Set range
Factory default
b0-03
Motor temperature compensation
function selection
0
～
1
0
The parameter can enable the temperature compensation function of the motor. If the motor is
equipped with a temperature sensor, it can accurately detect the temperature of the stator coil to
compensate the motor parameters. The V/F control does not require temperature compensation.
In vector control, the motor control requires the electrical parameters of the motor equivalent
circuit to establish a mathematical model for control. Based on the motor self-learning, the
electrical parameters at room temperature of the motor have been obtained. Although the motor
has a cooling system, the temperature will change with the change of operation time and
output power, so the related parameters of the motor equivalent circuit have changed, which will
cause the speed or torque control accuracy of the controlled motor to change and affect the
control performance. Therefore, by detecting the temperature of the motor and setting the
insulation level of the motor, the electrical parameter values of the motor can be determined as
the temperature changes, which improves the stability of the motor control. In addition, because
the motor temperature is known, the motor can be temperature protected. When the motor
temperature or temperature rise exceeds the allowable temperature value, the motor will
overheat and fail. Then the inverter will block the output and the motor will stop freely. At this
time, it need to detect the motor cooling system or motor insulation resistance, etc. and check
the cause of motor overheating.
0: OFF
,
No temperature compensation
The temperature compensation function of the temperature sensor is not enabled. Please keep
this parameter at 0 when no temperature sensor is installed in the motor winding.
1: ON, with temperature compensation
When temperature sensor for detecting the temperature of the winding built-in, please select
temperature compensation. Sensor with temperature-protected not included.
No.
Name
Set range
Factory default
b0-04
Motor temperature sensor types
0
～
1
0
0: PT100
1: PT1000
PT100 is default type. If NTC is used, the temperature calculation module needs to be modified.
The customer needs to provide relevant NTC data. The divider resistance is fixed at 1000Ω, and
