YASKAWA VS MINI J7 Instruction Manual download pdf (Page 79)

In the constant output area (output frequency > Max. Voltage Output

Frequency (n11)), the stall prevention (current limit) level during

acceleration is automatically decreased using the following equa-

tion.

Stall Prevention (Current Limit) Level while Running (n57)

Sets the stall prevention (current limit) level while running in units of

1%. (Inverter rated current = 100%)

Factory setting: 160%

A setting of 200% disables stall prevention (current limit) while run-

ning.

If the stall prevention action current at speed agreement exceeds the

value set for n57 for longer than 100 ms, deceleration starts.

If the output current exceeds the value set for n57, deceleration contin-

ues. If the output current goes to the value set for n57, acceleration to

the set frequency starts.

Stall prevention acceleration/deceleration settings during operation are

set either for the currently selected Acceleration Time, i.e., for Acceler-

Stall prevention (current limit) level during

acceleration in constant output area

Stall prevention (current limit)

level during acceleration (n56)

Max. voltage output frequency (n11)

Output frequency

Stall Prevention Level during

Acceleration (n56)

Stall Prevention Limit during

Acceleration (40% of n56)

Output Frequency

Maximum Voltage

Output Frequency

n11

Stall Prevention Level

during Acceleration

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YASKAWA VS MINI J7 Instruction Manual Page 79