- 134 -
parameters through the communication value for the host computer monitoring. The
communication address is 0 × 7000 ~ 0 × 7040
Where d0-00 to d0-31 are the run and stop monitoring parameters defined in P7-03 and
P7-04.
Display PID set value and feedback value, the value format is as follows:
PID setting = PID setting (percentage) * PA-04
PID feedback = PID feedback (percentage) * PA-04
Chapter 7 Fault Display and settlement
7.1 Guidance on the adjustment of the inverter before
commissioning
1
）
Drive in Open-loop Vector Control
（
P0-01=0
）
The AC drive implements control of the motor speed and torque without an encoder for
speed feedback. In this control mode, motor auto-tuning is required to obtain the motor
related
Error
Solution
Overload or
Over current detected
during motor start
Set motor parameters
（
P1-01~P1-05
）
according to motor
nameplate.
Select a proper motor auto-tuning mode by setting P1-37 and
perform motor auto-tuning. If possible, select dynamic auto-
tuning
Poor torque or speed
response and motor
oscillation at speeds
below 5 Hz
1. If motor torque and speed response are too slow, increase
the setting of P2-00 (speed loop proportional gain 1) by 10
gradually or decrease the setting of P2-01 (speed loop
integral time 1) by 0.05 gradually.
2. If motor oscillation occurs, decrease the setting of P2-00
and P2-01.
Poor torque or speed
response and motor
oscillation at speeds
above 5 Hz
1. If motor torque and speed response are too slow, increase
the setting of P2-03 (speed loop proportional gain 2) by 10
gradually or decrease. The setting of P2-04 (speed loop
integral time 4) by 0.05 gradually.
2. If motor oscillation occurs, decrease the setting of P2-03
and P2-04.
Low speed accuracy
If speed error when motor runs with load is large, increase
the setting of
P2-06 (vector control slip compensation gain)
by 10% gradually.
Obvious speed
fluctuation
If motor speed fluctuation is large, increase the setting of P2-
07 (SVC
torque f
i
lter time) by 0.001s gradually.
d0-15
PID setting
Display range
0
～
65535
0.00
～
320.0Hz(P0-22=1)
d0-16
PID feedback
Display range
0
～
65535
