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GENERAL ELECTRICAL DATA
3.3.2 DC link / braking transistor function
Activation of the braking transistor function
To be able to use the braking transistor, the function must be activated with
parameter "is30 braking transistor function".
For more information => F6 Programming manual.
NOTICE
Falling below the minimum braking resistor value !
Destruction of the drive controller
► The minimum brake resistance value must not fall below!
Mains
Rectier
DC link
Inverter
Braking
transistor
Motor
Braking
resistor
I
IN IN
IB
Figure 5: Block diagram of the energy ow
NOTICE
Destruction of the drive controller
If the error "ERROR GTR7 always ON" occurs, the current con-
sumption is switched o internally via the mains input bridge of
the AC supply.
► The drive controller must be galvanically isolated from the supply
mains within 5 minutes!
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