Brake Settings; Dc Injection Braking (Db) - Omron 3G3MX2 User Manual

5-10 Brake Settings

5-10 Brake Settings

The following explains the functions relating to brake control.

DC Injection Braking (DB)

DC injection braking can be applied to the motor depending on the load.
DC injection braking is performed in one of two methods: external DC injection braking using
a multi-function input terminal, and internal DC injection braking performed automatically when
starting/stopping. Even if DC injection braking is used, however, the motor may not stop
depending on the moment of inertia of the motor load.
Parameter
5
C001 to C007
5-135
Function name
No.
Internal DC
A051 Injection Braking
Selection
Internal DC
A052 Injection Braking
Frequency
DC Injection
A053 Braking Delay
Time
DC Injection
A054
Braking Power
Startup DC Injection
A057
Braking Power
DC Injection
A055
Braking Time
DC Injection
A056 Braking Edge/
Level Selection
Startup Internal
A058 DC Injection
Braking Time
DC Injection
A059 Braking Carrier
Frequency
Multi-function
Input Selection
Data
00: Disabled
01: Enabled
02: Enabled
(Operates only at the set frequency.)
0.00 to 60.00
When internal DC injection braking is
enabled, DC injection braking starts if the
frequency drops to below the set level
while the Inverter is stopped.
0.0 to 5.0
Delay time after the DC injection braking
time is reached or DB terminal turns ON
until DC injection braking is started.
Heavy load (b049 = 00) 0. to 100.
Light load (b049 = 01) 0. to 70.
0: Weak (zero current) to 100: Strong
(rated current)
0.0 to 60.0
This function becomes effective for edge
operation of external DC injection braking
or when internal DC injection braking is set.
00: Edge operation (Examples 1-a to 6-a)
01: Level operation (Examples 1-b to 6-b)
0.0 to 60.0
This function becomes effective when
internal DC injection braking is
performed.
When the RUN command is turned ON,
DC injection braking is started.
Heavy load (b049 = 00) 2.0 to 15.0
Light load (b049 = 01) 2.0. to 10.0
07: DB (External DC injection braking)
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-A@@@@)
Default
Unit
setting
00 −
0.50 Hz
0.0 s
50. %
0. %
0.5 s
01 −
0.0 s
5.0/2.0 kHz
− −