PA7300 Instruction Manual - TECO-Westinghouse Motor Company

(1) Input voltage (Cn-01)Set inverter input voltage. (in the unit of 0.1V).(2) V/f constant (Cn-02 to Cn-08)Set inverter output frequency/voltage characteristics (V/f characteristics.)(a) Changing V/f characteristicsSn-02 = 0 to 3 : V/f characteristics determined by set value. settings of CN-02 toCn-08 cannot be changed.Sn-02 = 4 : Any V/f characteristic can be obtained by the set values ofconstants Cn-02 ~ Cn-08(b) Voltage values (Cn-03, Cn-06, Cn-08) displayed in the operator depend on theset value of Sn-02 (V/f selection)(c) Sn-02 = 4 : The set value is displayed.(b) When V/F characteristics are a straight line, the same value as Cn-07 is set inCn-05. The set value of Cn-06 is disregarded.VV Max .(Cn-03)V C(Cn-06)V Min .(Cn-08)0 F Min . F B F A F Max .(Cn-07) (Cn-05) (Cn-04) (Cn-02)FNotes:1. The maximum output voltage is limited by input voltage.2. When the set values of Cn-02 to Cn-08 do not satisfy the following conditions, a setting error occursand Invaid V/F OPE10 alarm is displayed.The set value is checked at power ON and switching from PRG mode to DRIVE mode.F MAX. F A F B F Min.(3) Motor rated current (Cn-09)Set motor rated current by the electronic thermal function in units of 0.1 A for motoroverload protection. The range of setting is 10% to 200% of inverter rated current.When the 1st digit of Sn-14 is 1, the electronic thermal function is disabled and themotor is not protected from overheating due to overload.(4) DC injection braking starting frequency (Cn-10)Set a frequency for starting DC braking at deceleration stop in units of 0.1 Hz.When a set value is not greater than Cn-07 (minimum output frequency), DC brakingis started with the minimum output frequency.52