Lapple FIBRO FIBROTOR EM Series, Assembly And Operation Manual

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3 TECHNICAL DESCRIPTION
3.5 ASSEMBLY UNITS
FIBROTOR 29 | 72
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For a further increase in the switching frequency and the service life an external fan
can be used.
3.5.7.1 Braking voltage
The brake is ventilated by supplying the stipulated control voltage. The brake is
either directly connected to direct voltage, or alternating voltage is rectified by a
rectifier built into the terminal box. Various coil designs are possible in order to adapt
to the usual connection voltages.
3.5.7.2 Switching and connection
The braking system connection is carried out via a rectifier built into the terminal box
in accordance with the corresponding enclosed wiring diagram. The connection
voltage to be applied is featured in the wiring diagram.
The motor may only be switched on in conjunction with the
direct current brake.
The rectifier is not connected to the mains.
The brake must only be switched on on the direct current
side. In the event of an alternating current braking process, switching precision must
be taken into account.
In the direct current circuit an additional jumper is provided which will have to be
replaced by a contact point in order to switch off on the direct current side. This
achieves a clearly lower overrun. The contact point is generally switched in parallel
with the motor control switch.
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Fig. 14 Connection Georgii Kobold motor
In the case of special voltage or motors the wiring diagram in
the terminal box must be observed.