voltage error de-
pendency
1: Udc: GTR7 off at er-
ror
Braking resistor is also switched off at voltage-depend-
ent activation when an error is present that has
switched off the modulation.
voltage modula-
tion dependency
0: Udc: no GTR7 mod
state dependency
The voltage-dependent braking resisstor control is in-
dependent of the state of the modulation and the STO
inputs.
2: Udc: GTR7 off at
STO missing
Deactivation of the braking transistor if the STO inputs
(virtual via the safety module or on-board) are not set
in ru18
4: Udc: GTR7 off at
mod off
Deactivation of the braking transistor if the modulation
is deactivated
8: input: GTR7 off at
error
Braking transistor is also switched off when activated
by a digital input if an error is present that has switched
off the modulation.
input modulation
dependency
0: input: no GTR7
mod state depend-
ency
The digital input-dependent braking transistor control is
independent of the state of the modulation and the
STO inputs.
16: input: GTR7 off at
STO missing
Deactivation of the braking transistor if the STO inputs
(virtual via the safety module or on-board) are not set
in ru18
32: input: GTR7 off at
mod off
Deactivation of the braking transistor if the modulation
is deactivated
The braking transistor cannot be activated via the digi-
tal inputs as long as the DC link voltage (U
dc
) is < ru63
* 1.06
GTR7 off at OH-
heatsink and
modulation off
If the inverter modulation is switched off by OH, the
braking transistor should also be deactivated, since it
can be destroyed by overtemperature in the same way.
If OH is still decelerating at a ramp (error reaction
ramp), the braking transistor is also not switched off
during this time.
GTR7 off at
braking res.
temp. warning
256: off at brak. res.
temp. warning
Deactivation of the braking transistor when the braking
resistor warning level is exceeded
Bit 0..2 can be used to prevent deactivation of the voltage-dependent braking tran-
sistor control.
The activation of the braking transistor by a digital input can additionally also be
made dependent on the modulation with bit 3..5.