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SV-iS7 User Manual - Inverter Drive Supermarket

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CON-62 Speed Lmt Src : Selects the type of speed limit setting.<br />

0 : Keypad-1, 1 : keypad-2<br />

Chapter 8 Applied Functions<br />

The speed limit is set by using the keypad. The forward speed limit is set in CON-41 FWD Speed Lmt and the reverse<br />

speed limit is set in CON-42 REV Speed Lmt.<br />

2 : V1, 3 : I1, 6 : Int 485<br />

Operates the same way as the frequency command setting method. The setting can be checked in MON mode and<br />

select No.21 Torque Bias from CNF-06 ~ 08.<br />

CON-65 Speed Lmt Gain : Sets the rate of reference decrease when the motor speed exceeds the speed limit. If No. 35<br />

of the multi-function input terminal function items is selected and input during stop, the operation can shift from the torque<br />

control mode to vector control mode(speed control).<br />

8.1.15 Droop control<br />

This can be used to prevent saturation of the speed controller in vector control or for load balancing when one load is<br />

driven by multiple controllers.<br />

Group Code No. Function Display Initial Setting Display Unit<br />

CON<br />

66 Droop Perc - 0.0 %<br />

67 Droop St Torque - 100.0 %<br />

CON-66 Droop Perc : Sets the rate to be reflected in the speed command value on the basis of the motor rated torque.<br />

CON-67 Droop St Torque : Sets the torque at which the droop control operation starts.<br />

The motor speed is adjusted as follows according to the load torque on the basis of the set value.<br />

8.1.16 Speed/Torque change function<br />

This function is active only in vector control. You can shift from the speed mode to torque mode or shift from the torque<br />

mode to speed mode by the multi-function input.<br />

Group Code No. Function Display Initial Setting Display Unit<br />

CON<br />

Torque reference - DroopStTorque<br />

Droop speed =<br />

Maximum frequency×<br />

DroopPerc×<br />

100%<br />

torque - DroopStTorque<br />

68 SPD/TRQ Acc T - 20.0 Sec<br />

69 SPD/TRQ Dec T - 30.0 Sec<br />

IN 65~75 P x Define 35 Speed/Torque -<br />

8-33

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