4-2 Function Mode „ Output Voltage Gain •Changes the Inverter output voltage in percentages, with the voltage selected in the AVR voltage selection (A082) as 100%. •The Inverter cannot output voltage beyond that of the incoming voltage. Motor voltage selection (100%) (A082) A045 4 Base frequency (A003/A203) Max. frequency (A004/A204) Functions DC Injection Braking (DB) This function securely stops the motor rotation during deceleration. •Two methods are available for DC injection braking: One is the external method via the multi- function input (external DC injection braking); the other is the internal method performed automatically to stop the motor (internal DC injection braking).
•Below are operation types: Edge operation: DB operates during the specified time period from the DB signal input. Level operation: DB operates while a signal is being input. Frequency control mode: DB operates when the frequency reaches the specified level during operation. •If DC injection braking operates at a high motor speed, an overcurrent trip (E01 to E04) or overload trip (E05) may occur. For internal DC injection braking, the following adjustment may help you avoid such a situation: Lower the DC injection braking frequency (A052).
Increase the DC injection braking delay time (A053) For external DC injection braking via the multi-function input, use the external DC injection braking terminal (along with deceleration stop). 4-14 Parameter No. Function name Data Default setting Unit A051 DC injection braking selection 00: Disabled 01: Enabled 00 A052 DC injection braking frequency 0.0 to 60.0 0.5 Hz A053 DC injection braking delay time 0.0 to 5.0 0.0 s A054 DC injection braking power 0. to 100. 50 % A055 DC injection braking time 0.0 to 60.0 0.5 s A056 DC injection braking method selection 00: Edge operation 01: Level operation 01 Related functions C001 to C006