RUN command
DB terminal
DC injection braking current
Output frequency
on
off
on
off
DC Injection Braking Level (F21/A20)
DC Injection Braking Start at Output Frequency (E114 = “1: External
DC Injection Braking/Setting Frequency”)
• During a deceleration stop, DC injection braking is performed for the period set at the DC Injection
Braking Time (F22/A11) from the time that the output frequency reaches or falls below the DC Injec-
tion Braking Start Frequency (F20/A09). However
, if the Stop Frequency (F25) is higher than the DC
Injection Braking Frequency (F20/A10), DC injection braking is started from the time the output fre-
quency reaches the Stop Frequency (F25), and is performed for the period set at the DC Injection
Braking Time (F22/A11).
RUN command
DC injection braking current
DC Injection Braking Start Frequency (F20/A09)
DC Injection Braking Level (F21/A20)
Output frequency
on
off
DC Injection Braking Time (F22/A11)
DC Injection Braking Start at Frequency Reference and Output Fre-
quency (E114 = “2: Setting Frequency”)
• Use this method to control DC injection braking only by changing the set frequency (frequency refer-
ence). DC injection braking by DB terminal is disabled. The DC injection braking during startup by
the settings of DC Injection Braking Startup Time (H195) is also disabled.
• DC injection braking is started for the period of the DC Injection Braking Time (F22/A1
1) from the
time that both the frequency reference and the output frequency reach or fall below the DC Injection
7 Other Functions
7-66
M1 Series Standard Type User's Manual (I669)
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