Toshiba Q9+ Installation & Operation Manual page 150

Dynamic Braking Enable (not used)
Program Protection Dynamic Braking
This parameter Enables/Disables the Dynamic Braking system.
Settings:
0 — Off
1 — On with Trip, ST-Off and Overload Detection
2 — On with Trip and ST-Off
3 — On with Trip and Overload Detection
4 — On with Trip
5 — On with ST-Off and Overload Detection
6 — On with ST-Off
7 — On with Overload Detection
8 — On
Dynamic Braking
Dynamic Braking is used to prevent over-voltage faults during
rapid deceleration or constant speed run on cyclic overhauling
applications.
Dynamic Braking dissipates regenerated energy in the form of
heat. When using a DBR, use thermal protection.
The resistive load is connected across terminals PA and PB (non-
polarized). Using a low-value, high-wattage resistance as a load
for the generated current, the resistive load dissipates the
induced energy.
Dynamic Braking helps to slow the load quickly; it cannot act as a
holding brake.
The Dynamic Braking function may be set up and enabled by
connecting a braking resistor from terminal PA to PB of the ASD
and providing the proper information at F304, F308, and F309.
138
–
F304
Direct Access Parameter Information
Q9 Plus ASD Install/Op Manual
F305
Direct Access Number —
Parameter Type — Selection List
Factory Default — Off
Changeable During Run — No
https://www.toshiba.com/tic/
F304