4-2 Function Mode • External DC Injection Braking (A051 = 00) •Allocate 07 (DB) to the desired multi-function input. •DC injection braking can be applied by turning on/off the DB terminal, regardless of the DC injection braking selection (A051). •Adjust the DC injection braking power with A054. •If the DC injection braking delay time (A053) is set, the Inverter output will be shut off during the specified time period and the motor goes into free-run status. After the set time elapses, DC injection braking starts. •Set the DC injection braking time (A055) via the Digital Operator or the DB terminal while taking into account motor heat generation.
•Perform each setting according to your system after selecting the level or edge operation in A056. 4 Functions 4-15 (a) Edge operation (A056: 00) (b) Level operation (A056: 01) (Example 1-a) FW DB Output frequency A055 (Example 1-b) FW DB Output frequency (Example 2-a) FW DB Output frequency A055 (Example 2-b) FW DB Output frequency (Example 3-a) FW DB Output frequency Free running A053 A055 (Example 3-b) FW DB Free running Output frequency A053 FW DB Output frequency A055 A055 FW DB Output frequency FW DB Output frequency A055 A055 FW DB Output frequency FW DB Output frequency Free running A053 A055 Free running A053 A055 FW DB Free running Output frequency A053 Free running A053