Function For Crane/Hoist; Commercial Power/Inverter Switching - Toshiba TOSVERT VF-P7 Instruction Manual

If frequency 1
Drooping gain 
Gain2＝ ×
100
If  ≧
If｜frequency after acceleration｜≦ frequency 1
Gain2 ＝ 0
If｜frequency after acceleration｜＞ frequency 1
Gain2 ＝ Drooping gain
c) Drooping speed
Drooping speed = base frequency
Note) For this calculation, assume the base frequency to be 100 Hz if it is higher than 100 [Hz].

6.15 Function for crane/hoist

 ：Light-load high-speed operation
 ：Light-load high-speed operation switching lower limit frequency
 ：Light-load high-speed operation load waiting time
 ：Light-load high-speed operation load detection time
 ：Light-load high-speed operation heavy load detection time
 ：Switching load torque current during forward run
 ：Heavy load torque during acceleration in forward direction
 ：Heavy load torque during fixed speed in forward direction
 ：Switching load torque current during reverse run
 ：Heavy load torque during acceleration in reverse direction
 ：Heavy load torque during fixed speed in reverse direction
 ：Automatic light-load high-speed operation frequency

6.16 Commercial power/inverter switching

 ：Output signal selection of commercial power/inverter switching
 ：Commercial power/inverter switching frequency
 ：Inverter side switching waiting time
 ：Commercial power side switching waiting time
 ：Commercial power switching frequency holding time
・Function
The function switches between the commercial power and the inverter operation witho
ut stopping the motor in case of tripping or by sending a signal, and also to transmit
switching signals to an external sequence (MC, etc).
 ＜｜frequency after acceleration｜≦frequency 2



F-31
(｜freq. after acceleration｜ − freq.1  )
( freq.2  − freq.1  )


/ 100
Note
×Gain1×Gain2
