BENSHAW Rsi S Series, Инструкция по эксплуатации

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Learning Advanced Features
153
Sensorless Vector Control Operation Guide for Induction Motors
Problem Relevant function code Troubleshooting
The amount of starting
torque is insufficient.
bA.24 Tr
Cn.09 PreExTime
Cn.10 Flux Force
Cn.31 ACR SL P Gain
Cn.54–57 Trq Lmt
Cn.93 SL Volt Comp3
Set the value of Cn. 09 to be more than 3
times the value of bA.24 or increase the
value of Cn.10 by increments of 50%. If the
value of Cn.10 is high, an overcurrent trip at
start can occur. In this case, reduce the
value of Cn.31 by decrements of 10.
Increase the value of Trg Lmt (Cn.54-57) by
increments of 10%.
Increase the value of Cn.93 by increments
of 5.
The output frequency is
higher than the base
frequency during no-load
operation at low speed
(10Hz or lower).
Cn.91 SL Volt Comp1
Decrease the value of Cn.91 by decrements
of 5.
The motor hunts or the
amount of torque is not
sufficient while the load is
increasing at low speed
(10Hz or lower).
Cn.04 Carrier Freq
Cn.21 ASR-SL P Gain1
Cn.22 ASR-SL I Gain1
Cn.93 SL Volt Comp3
If the motor hunts at low speed, increase
the value of Cn.22 by increments of 50m/s,
and if hunting does not occur, increase the
value of Cn.21 to find the optimal operating
condition.
If the amount of torque is insufficient,
increase the value of Cn.93 by increments
of 5.
If the motor hunts or the amount of torque
is insufficient in the 5-10Hz range, decrease
the value of Cn.04 by increments of 1kHz (if
Cn.04 is set to exceed 3kHz).
The motor hunts or
overcurrent trip occurs in
regenerative load at low
speed (10 Hz or lower).
Cn.92 SL Volt Comp2
Cn.93 SL Volt Comp3 Increase the value of Cn.92-93 by
increments of 5 at the same time.
Over voltage trip occurs due
to sudden
acceleration/deceleration or
sudden load fluctuation
(with no brake resistor
installed) at mid speed (30Hz
or higher).
Cn.24 ASR-SL I Gain2
Decrease the value of Cn.24 by decrements
of 5%.
Over current trip occurs due
to sudden load fluctuation at
high speed (50 Hz or higher).
Cn.54–57 Trq Lmt
Cn.94 SL FW Freq
Decrease the value of Cn.54-57 by
decrements of 10% (if the parameter
setting is 150% or higher).
Increase/decrease the value of Cn.94 by
increments/decrements of 5% (set below