Hitachi SJ Series User Manual page 354

Chapter 12
12.16.5 Adjusting overcurrent error level
Q
• How to prevent overcurrent from flowing in the
motor
• How to lower the overcurrent protection threshold
to prevent the magnet from demagnetizing when a
magnetic motor is driven
A
• By the setting of the overcurrent detection level
[bb160], you can adjust the threshold current
value used for detecting the overcurrent error
[E001].
Parameter
Item
Overcurrent
detection level
Parameter
Inverter ND rated current
[bb160]
× (0.20 to 2.20)
!
• If the threshold level for overcurrent is lowered,
the overcurrent error [E001] is more likely to occur.
Therefore, it is necessary to lower the levels for
the overload restriction function and the
overcurrent suppression function. For details, see
"12.13 Using Trip Avoidance Function".
Data
Sets the threshold level used for detecting
overcurrent.
12-16-5
Inverter Function
Description