TOYODenki VFDB2009 Series, Руководство по эксплуатации

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5.3 Dynamic Brake operation
If a motor is suddenly decelerated with an inverter, it will become regeneration mode and the
inverter-middle D.C. voltage will rise. When the inverter-middle D.C. voltage exceeds set-up starting voltage
of DB operation at this time, DB unit performs Dynamic brake operation. Flow to DB operation is shown in
the following figure 5.5.
In addition, starting voltage of DB operation and voltage width which stops DB operation of a statement all
over a figure, It sets up by "F10" (DB operation voltage setting mode).
Refer to "5.1.2 Display" for the conditions which various kinds of LED turns on.
LED
”
86A
”
OFF
(DB Unit unprotection)
Inverter Power ON
DB Stop
Yes
No
Yes
No
Yes
No
LED
”
RUN
”
ON
(DB Unit Operation)
DC Voltage exceeds
DB Operation voltage
DB Operation
Figure 5.5 Flow chart of DB operation