Omron SYSDRIVE MX SERIES User Manual page 106

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.
(a) Edge operation (A056: 00)
4
(Example 1-a)
Output frequency
(Example 2-a)
FW
DB
Output frequency
(Example 3-a)
FW
DB
Output frequency
4-15
FW
DB
A055
A055
Free running
A053 A055
(b) Level operation (A056: 01)
(Example 1-b)
FW
DB
Output frequency
(Example 2-b)
FW
DB
Output frequency
(Example 3-b)
FW
DB
Output frequency
Free running
A053