Lenze SDSGS - Manual (Page 24)

Mechanical installation
Installation
Important notes
5
l
24 BA 13.0011−EN 1.0
5.3 Installation
ƒ The mounting surface must be dimensioned for the design, weight and torque of
the motor.
ƒ The foot and flange faces must rest flat on the mounting surface.
– Incorrect motor alignment reduces the service life of the roller bearings and
transmission elements.
Impacts on shafts can cause bearing damage.
ƒ Do not exceed the permissible range of ambient operating temperature
(
¶ chapter 4.1).
ƒ Fasten the motor securely.
ƒ Ensure that the ventilation is not impeded. The exhaust air, also the exhaust air of
other machines next to the drive system, must not be taken in immediately.
ƒ During operation, surfaces are hot, up to 150 °C! Ensure that guard preventing
accidental contact is in place!
Ensure an even surface, solid foot/flange mounting and exact alignment if a direct clutch
is connected. Avoid resonances with the rotational frequency and double mains frequency
which may be caused by the assembly.
Use appropriate means to mount or remove transmission elements (heating) and cover
belt pulleys and clutches with a touch guard. Avoid impermissible belt tensions.
5.4 Holding brake (option)
5.4.1 Important notes
As an option, the motors can be fitted with a brake. The installation of brakes (in or on the
motor) increases the length of the motor.
)
Note!
The brakes used are not fail−safe because interference factors, which cannot
be influenced (e.g. oil ingress), can lead to a reduction in torque.
The brakes are used as holding brakes and serve to hold the axes at standstill or in the
deenergised state.
Emergency stops at higher speeds are possible, but high switching energy increases wear
on the friction surfaces and the hub (see wear of brakes, page 27 and 28).
The brakes operate according to the closed−circuit principle, i.e. the brake is closed in the
deenergised state. The brakes for DC supply can be fed with a bridge−rectified DC voltage
(bridge rectifier) or with a smoothed DC voltage. Information on the permissible voltage
tolerance is provided in the respective motor catalogue.