Goodrive350 series high-performance multifunction VFD
Basic operation guidelines
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5.5.18 Commissioning procedures for closed-loop control, position control and spindle
positioning
1. Commissioning procedure for closed-loop vector control of asynchronous motor
Step 1: Restore to default value via keypad
Step 2: Set P00.03, P00.04 and P02 group motor nameplate parameters
Step 3: Motor parameter autotuning
Carry out rotary parameter autotuning or static parameter autotuning via keypad. If the motor can be
disconnected from load, then you can carry out rotary parameter autotuning; otherwise, carry out
static parameter autotuning, the parameter obtained from autotuning will be saved in P02 motor
parameter group automatically.
Step 4: Verify whether the encoder is installed and set properly
a) Confirm the encoder direction and parameter setup
Set P20.01 (encoder pulse-per-revolution), set P00.00=2 and P00.10=20Hz, and run the VFD, at this
point, the motor rotates at 20Hz, observe whether the speed measurement value of P18.00 is correct,
if the value is negative, it indicates the encoder direction is reversed, under such situation, set P20.02
to 1; if the speed measurement value deviates greatly, it indicates P20.01 is set improperly. Observe
whether P18.02 (encoder Z pulse count value) fluctuates, if yes, it indicates the encoder suffers
interference or P20.01 is set improperly, requiring the check of the wiring and the shielding layer.
b) Determine Z pulse direction
Set P00.10=20Hz, and set P00.13 (running direction) to forward and reverse direction respectively to
observe whether the difference value of P18.02 is less than 5, if the difference value remains to be
larger than 5 after setting Z pulse reversal function of P20.02, power off and exchange phase A and
phase B of the encoder, and then observe the difference between the value of P18.02 during forward
and reverse rotation. Z pulse direction only affects the forward/reverse positioning precision of the
spindle positioning carried out with Z pulse.
Step 5: Closed-loop vector pilot-run
Set P00.00=3, and carry out closed-loop vector control, adjust P00.10 and speed loop and current
loop PI parameter in P03 group to make it run stably in the whole range.
Step 6: Flux-weakening control
Set flux-weakening regulator gain P03.26=0
–8000, and observe the flux-weakening control effect.
P03.22
–P03.24 can be adjusted as needed.
2. Commissioning procedure for closed-loop vector control of synchronous motor
Step 1: Set P00.18=1, restore to default value
Step 2: Set P00.00=3 (closed-loop vector control), set P00.03, P00.04, and motor nameplate
parameters in P02 group.
Step 3: Set P20.01.
