Braking operation
Braking operation with external brake resistor
Rating for Lenze brake resistors
8
99
EDS84ABD302 EN 4.0
8.3.4 Rating for Lenze brake resistors
To decelerate greater moments of inertia or with a longer operation in generator mode an
external brake resistor is required. It converts braking energy into heat.
The brake resistors (IP20) recommended in the table are designed for a 1.5-fold
regenerative power. The cycle time is 150 s and contains a maximum braking time of 15 s
and a minimum recovery time (break) of 135 s.
ƒ The brake resistors are equipped with a thermostat (potential-free NC contact,
switching capacity: AC 250 V, 0.5 A).
ƒ To increase the power, brake resistors can be connected in parallel or in series.
– The resistance for the controller must not fall below the lowest permissible value.
– The thermostat of several brake resistors at a controller must always be connected
in series.
Product key Rated data - brake resistor
Controller Brake resistor Resistor
R[Ω]
Continuous power
P[W]
Thermal capacity
WK [kWs]
E84AVBxx3714 ERBM390R100W
390 100 15
E84AVBxx5514
ERBM390R100W
E84AVBxx7514
E84AVBxx1124 ERBP180R200W
180
200 30
E84AVBxx1524 ERBP180R200W
E84AVBxx2224 ERBP180R300W 300 45
E84AVBxx3024 ERBP180R300W 100 300 45
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