5-135
5-10 Brake Settings
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5
Functions
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
No.
Function name Data
Default
setting
Unit
A051
Internal DC
Injection Braking
Selection
00: Disabled
00 −
01: Enabled
02: Enabled
Operates only at the set frequency.
(A052)
A052
Internal DC
Injection Braking
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.
0.50 Hz
A053
DC Injection
Braking Delay
Time
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.
0.0 s
A054
DC Injection
Braking Power
Heavy load (b049 = 00) 0. to 100.
Light load (b049 = 01) 0. to 70.
0: Weak (zero current) to 100: Strong
(rated current)
50. %
A057
Startup DC Injection
Braking Power
0. %
A055
DC Injection
Braking Time
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.
0.5 s
A056
DC Injection
Braking Edge/
Level Selection
00: Edge operation (Examples 1-a to 6-a)
01 −
01: Level operation (Examples 1-b to 6-b)
A058
Startup Internal
DC Injection
Braking Time
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.
0.0 s
A059
DC Injection
Braking Carrier
Frequency
Heavy load (b049 = 00) 2.0 to 15.0
Light load (b049 = 01) 2.0. to 10.0 5.0/2.0 kHz
C001 to C007
Multi-function
Input Selection
07: DB (External DC injection braking)
−−
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