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7 Other Functions
7 - 92
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
The carrier frequency for DC injection braking can be set in the DC Injection Braking Carrier Frequency
(A059). Note, however, that setting a 5 kHz or higher frequency automatically applies a limit value to
the DC Injection Braking Power (A054).
The graph below shows the relationship between the carrier frequency and the limit value for the DC
injection braking power.
The value enclosed in parentheses ( ) on the graph represents the limit value at that carrier frequency.
Use this method to control DC injection braking according to the ON/OFF status of the external DC
injection braking signal allocated to the multi-function input terminal.
Allocate the Multi-function Input S1 to S7 Selection (C001 to C007) to 07 (DB: External DC injection
braking).
When the terminal DB turns ON, DC injection braking is applied independently of the RUN command
operation.
• DC injection braking works according to the ON/OFF status of the terminal DB, regardless of whether
the DC Injection Braking Selection (A051) is set to 00 (Disabled) or 01 (Enabled). Note that the DC
injection braking via the terminal DB has priority over the DC injection braking via the parameter set-
ting 01 (Enabled).
However, when A051 is set to 02, DC injection braking via the terminal DB is disabled.
• In the DC Injection Braking Power (A054), set the braking power required for your application.
Be aware that a limit value is automatically applied to the DC Injection Braking Power (A054) setting.
A058
Startup DC Injection Braking
Time
0.0 to 60.0
Set the time during which DC injection
braking is applied when the RUN com-
mand is ON, when the DC injection
braking function is enabled.
0.0
s
A059
DC Injection Braking Carrier
Frequency
Heavy load mode (b049 = 00): 2.0 to 15.0
5.0/2.0
kHz
Light load mode (b049 = 01): 2.0 to 10.0
C001 to
C007
Multi-function Input S1 to S7
Selection
07:
DB (External DC injection braking)
−
−
DC Injection Braking Carrier Frequency
Controlling DC Injection Braking via ON/OFF Status of External DC
Injection Braking Terminal
Parameter
No.
Function name
Data
Default
data
Unit
100
90
80
70
60
50
40
30
20
10
0
3
5
7
9 11 13 15
(75)
(100)
(46)
(34)
(22)
(10)
Limit value for DC
injection braking power
[%]
DC injection braking carrier frequency [kHz]
Summary of Contents for SYSDRIVE MX2 SERIES
Page 1: ...Multi function Compact Inverter MX2 Series Type V1 User s Manual I585 E1 01 3G3MX2 A V1 ...
Page 32: ...CONTENTS 29 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 108: ...2 Design 2 48 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 176: ...4 Parameter List 4 42 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 538: ...10 Troubleshooting 10 22 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 598: ...12 Options 12 50 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 614: ...Appendices A 16 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 615: ...I 1 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 I Index ...