Firmware ≤ 05.00 - DMS 4.2 EN - 02/2010 L 203
8400 HighLine | Parameter setting & configuration
Motor control (MCTRL)
Monitoring
Temperature model
[5-31] Signal flow for monitoring the brake resistor
The monitoring function calculates the braking current I
Br
from the current DC-bus voltage
U
DC_act
and the brake resistance parameterised in C00129:
During the calculation, the thermal utilisation of the brake resistor on the basis of the
following parameters is taken into consideration:
– Resistance value (C00129
)
– Continuous power (C00130
)
– Thermal capacity (C00131
)
In the Lenze setting these parameters are preset with the corresponding power-
adapted Lenze brake resistor.
C00133
indicates the calculated utilisation of the brake resistor in [%].
– A utilisation of 100 % corresponds to the continuous power of the brake resistor
depending on the maximally permissible temperature limit.
Related topics:
Braking operation/braking energy management
( 190)
Error message: "OC12: I2xt overload brake resistor"
J
C00138
C00130
C00131
I
Br
I=1
On
I=0
Off
Ixt
2
C00572 C00574
C00129
)
Temperature model
Note!
The monitoring function can also be triggered due to a value entered in C00129
although a brake resistor is not even connected.
I
Br
U
DC_act
C00129
------------------- -=
efesotomasyon.com - Lenze
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