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Hitachi Vector Control with the SJ300 Inverter Application Note page 23

Vector control with the sj300 inverter

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[P022]
Feed forward gain for APR control mode
[P023]
Position loop gain for APR control mode
[P025]
Secondary resistance compensation
Fig 15. Example of thermistor characteristics
NTC type
Internally calculated
resistance
20k
Big [C085]
50
Detected value from thermistor
(= Pulse count numbers in MCU)
[P026]
Over speed trip level (%) setting
Inverter trips with over speed (E 61 or E 71) when a deviation between actual speed and target speed
exceeds the level of
This can happen by an overshoot caused by incorrect settings of J ([H024]/[H034]) and/or K([H005]) value.
[P027]
Over deviation detection level (Hz) setting
Inverter gives out warning (DSE output) from an intelligent input terminal when the speed deviation exceeds
this level. The calculation is based on a deviation
© 2002 Hitachi America, Ltd.
[C085] = 0
Small [C085]
(Maximum frequency set) x
Refer to section (4-2) for
an information.
"00" : No compensation
"01" : With compensation
• Connect a motor thermistor between TH and CM1
terminal of the control card.
‚ Set [b098] to a suitable value
s "00" : Thermistor input invalid
s "01" : PTC type
s "02" : NTC type
ƒ Set the resistance value [ ] you want to make it trip.
„ Set gain adjustment by [C085]
PTC type
Internally calculated
resistance
20k
[C085] = 0
Small [C085]
Big [C085]
50
Detected value from thermistor
(= Pulse count numbers in MCU)
[P026].
in Fig 7 and Fig 8.
23

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