Omron SYSDRIVE MX2 SERIES User Manual

5-140
5-10 Brake Settings
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5
Functions
Internal DC Injection Braking (Operation Only Based on Set Frequency) (A051 = 02)
DC injection braking can be applied when the output frequency becomes lower than the setting
of Internal DC Injection Braking Frequency (A052).
Neither external nor internal DC injection braking is available while this function is selected.
Operates only when the RUN command is turned on.
DC injection braking starts when both frequency reference and current frequency become
lower than A052. (Example 1-a)
When the reference frequency becomes 2 Hz higher than the A052 set value, DC injection
braking is released and the output returns to normal. (Example 1-a)
If the reference frequency is zero when the operation starts with analog input, operation is
started with DC injection breaking because both the reference and current frequencies are
zero.(Example 1-b)
If the RUN command is turned on with the determined frequency reference (a value larger than
the A052 setting is input), operation is started with normal output.
The operation to return to normal varies depending on the setting of DC Injection Braking
Edge/Level Selection (A056).
Example 1-a) Example 1-b)
FW input
Frequency
reference
Output
frequency
A052
ON
FW input
Frequency
reference
Output
frequency
A052
ON
(a) Edge Operation (A056 = 00) (b) Level Operation (A056 = 01)
FW input
Frequency
reference
Output
frequency
A052
ON
A053
FW input
Frequency
reference
Output
frequency
A052
ON

Omron SYSDRIVE MX2 SERIES Specifications

General

Brand	Omron
Model	SYSDRIVE MX2 SERIES
Category	Inverter
Language	English