External Brake Resistor - Lenze 9215 Operating Instructions Manual

4.1.2. External brake resistor

To increase the permanent brake power, an external brake resistor
with a higher permanent power can be installed instead of the
internal resistor. In this case, the internal brake resistor must be
disconnected.
Disconnection of the internal resistor:
1. Remove right side of the supply module housing 9210, when
no voltage is applied.
2. Disconnect spade plug.
3. Connect spade plugs to tabs on the housing.
4. Close housing again.
The external brake resistor must be connected to the power
connections +U
recommended to exclusively use resistors with integrated overload
protection which disconnect the mains supply in case of overload
(for recommended resistors see chapter "Accessories"). The
surface temperature of the resistor may reach 360°C.
Caution!
When using brake resistors without overload protection, the resistors may burn due
to a fault (e.g. mains overvoltages >528V, application specific overload or internal
faults).
18
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