Preventing Motor From Stalling (Current Limit) - YASKAWA VS mini C Series Instruction Manual

I Preventing motor stalling (Current limit) I
from
Automatically adjusts the output frequency and output current according to
• the load to (zontinue operation without stalling the motor.
• Stall prevention (current limit) level during acceleration (n34)
Sets the stall prevention (current limit) level during acceleration in units of
1%.
(Inverter rated current = 100%)
Factory setting: 170%
A setting of 200% disables the stall prevention (current limit) during
acceleration. During acceleration, if the output current exceeds the value set
for n34, acceleration stops and frequency is maintained. When the output
current goes down to the value set for n34, acceleration starts.
MOTOR CURRENT
n34 .........
OUTPUT" i • T_M_
FREOUENCY i
• _ : TME prevent the motor from stalling.
In the constant output area [output frequency ->_max. voltage output
frequency (n26)], the stall prevention (current limit) level during
acceleration is changed by the following equation.
Stall prevention (current limit) level[
[during acce in constant output areaJ
_ _ Stall prevention (current limit) I X IMax" voltage output frequency (n26)1
i
evel during accel (n34) lOut_put frequency) •
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