Amtech Axpert-Eazy Series Instruction Manual page 120

B627: Field Weakening Gain
This is gain for field weakening. If hunting occurred in speed in field weakening region, decrease gain.
GROUP – 7: VECTOR CONTROL CONSTANTS-2
B701: Torque Mode Selection
When this mode is active, the prime parameter to be control is Torque instead of Speed. This mode is
applicable for vector control mode only.
B702: Excitation Current Reference (%)
It is excitation current reference. It is almost equal to no load motor current.
B703: Torque LPF Time constant (mS)
It is time constant of the filter for the torque current feedback to the ACR.
B704: ACR Kp
It is proportional constant for ACR. If we ignore the Integral action than at any time the ACR's output
will be Kp times the error at that time. To increase the current response, set large value. Note that if
the value is too low or too high then the current will hunt.
6
B705: ACR Ti (mS)
It is Integral time for ACR. If Kp=1 and Error =100%, ACR output will be 100% within this time. The
Integral constant Ki is given by,
Ki = Kp/Ti
To increase the speed response, set small value. Note that if the value is too low or too high then the
current will hunt.
B706: ACR Q Upper Limit (%)
This is the ACR Q-Controller output upper limit.
B707: ACR Q Lower Limit (%)
This is the ACR Q-Controller output lower limit.
B708: ACR D Upper Limit (%)
This is the ACR D-Controller output upper limit.
B709: ACR D Lower Limit (%)
This is the ACR D-controller output lower limit.
B710: Torque Reference Polarity (%)
This is used to select Torque reference polarity
=0: Unipolar =1: Bipolar
B711: Voltage Saturation Compensation Selection
=0: Disable =1: Enable
If the output voltage in control is larger than the voltage that can be output by the inverter, select this
control to limit the exciting current to prevent the current or torque from hunting.
Amtech
6-74