Hyundai N700E Instruction Manual page 99

N700E INSTRUCTION MANUAL
Remark
1. If satisfactory performance through auto-tuning cannot be fully obtained,
please adjust the motor constants for the observed symptoms according to the table below.
Operation
status
Powered
running
(status with a
accelerating
torque)
Regeneration
(status with a
decelerating
torque)
2. If the inverter capacity is more than twice the capacity of the motor in use, the inverter
may not achieve its full performance specifications.
3. When DC braking is enabled, the motor constant will not be accurately set.
Therefore, disable DC braking before starting the auto-tuning procedure.
4. The motor will rotate up to 80% of base frequency : make sure that accele-ration or
deceleration is not operated. If then, decrease the manual torque boost setting value.
5. Be sure if motor is in standstill before you carry out an auto-tuning.
Auto-tuning data carried out when motor is still running may be not correct.
6. If the auto-tuning procedure is interrupted by the stop command, the auto-tuning constants
may be stored in the inverter. It will be necessary to store the inverters factory defaults setting.
Symptom
When low frequency
(a few Hz) torque is
insufficient.
When the speed
deviation is negative.
When the speed
deviation is positive.
When over current
protection is operated
at injection of load.
When low frequency
(a few Hz) torque
is insufficient.
Adjustment
Slowly increase the motor constant R1 in relation
to auto-tuning data within 1 to 1.2 times R1.
Slowly increase the rating motor slip H07 in
relation to auto-tuning data within 1.5 times
H07
Slowly decrease the rating motor slip H07 in
relation to auto-tuning data within 0.5 times
H07
Slowly increase the motor constant Io in relation
to auto-tuning data within 1 to 1.2 times Io.
Slowly increase the motor constant R1 in relation
to auto-tuning data within 1 to 1.2 times R1.
Slowly increase the motor constant Io in relation
to auto-tuning data within 1 to 1.2 times Io.
Decrease the carrier frequency.
5-32
Parameter
H08/H10
H07
H07
H06
H08/H10
H06
b11