
Firmware
≤
02.00 - DMS 2.1 EN - 03/2011
L
113
8400 motec | Software Manual
Motor control (MCTRL)
Braking operation/braking energy management
5.11.1
Settings for internal brake resistor E84DZEWxxxx
5.11.2
Voltage limits for braking operation
In case of the 8400 motec controller, the brake chopper is exclusively switched on via a
hardware circuit.
For the braking methods
= 2 / 4, the brake chopper threshold adjustable via
is used in order to trigger the corresponding software response before
the brake chopper threshold on the hardware side is reached.
The braking method
= 6 increases the motor magnetisation every time the
motor is decelerated. There is no reference to the DC-bus voltage.
The brake chopper threshold is preset as follows via the selected mains voltage
(
):
This brake chopper threshold can be reduced by 0 ... 150 V by means of
Example:
A 400 V device has a maximum mains voltage of 420 V AC.
Maximum stationary DC-bus voltage: 420 V AC * 1.414 = 594 V DC
This means that
can be set to a maximum of 83 V DC (677 V DC - 594 V DC).
Resistance value
R
B
Rated power
P
D
Thermal capacity
Q
B
(
)
E84DGDVB...
Brake resistor
[
Ω
]
[W]
[kWs]
3714
5514
7514
1124
1524
E84DZEW220R
220.0
15
0.3
2224
3024
E84DZEW100R
100.0
15
0.3
4024
5524
7524
E84DZEW47R0
47.0
15
0.3
C00173
Mains voltage
Brake chopper threshold
0
3-phase 400 V AC
677 V DC
1
3-phase 440 V AC
735 V DC
2
3-phase 480 V AC
775 V DC
Stop!
= 2 / 4, the following applies:
The brake chopper threshold resulting from
and
must not
exceed the stabilised DC-bus voltage, since otherwise, deceleration cannot take
place!
Summary of Contents for 8400 motec Series
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