User manual

8
Version 2.4 (10/2011) en
Original instructions
Drum Motor
General technical information
Product description
The Drum Motor is a totaly enclosed electric driven pulley and replaces external
components such as gear-motors and gearboxes that require frequent
maintenance.
The Drum Motor can operate in high concentrations of dust or grit and can be
subjected to water jets or spray and will withstands most aggressive
environments. Due to its IP66 or IP69k protection class and its stainless steel
finish (when specified) it can also be used for food processing, hygienic or
pharmaceutical applications. The Drum Motor can be used with a rubber lagging
for increasing friction between the Drum Motor and conveyor belt or provided with
a profiled lagging for driving modular or profiled belts or without any covering.
S-, i-, and E-series Drum Motors are powered by an asynchronous AC induction
motor which is available in different power levels and in accordance to most
international voltages.
D-series Drum Motors are powered by a synchronous motor and must be
connected to a suitable drive controller. For information on the drive controller
see the respective manual.
The Drum Motor contains oil that serves as lubricant and coolant by dissipating
heat through the drum shell and conveyor belt.
If the Drum Motor is used without a belt or with modular belt it can be provided in
a special design to ensure cooling.
Optional features Integral Thermal Control/Thermal Winding Protection: An Integral Thermal
Control switch is fitted in the winding head to prevent overheating. The switch will
open if the motor overheats. However, it must be connected to a suitable external
control device which will interrupt the power supply to the motor in case of
overheating (see "Thermal protector", page 10).
Integral Electromagnetic Brake: The Integral Electromagnetic Brake is able to
brake and hold a load according to the stated belt pull. It is applied directly to the
Drum Motor's rotor shaft and supplied with a DC rectifier. The Electromagnetic
Brake is available for all Drum Motor models except 80s and 113s (see
"Electromagnetic brake for i- and E-series", page 71).
Mechanical Backstop Function: The Mechanical Backstop Function fitted to the
rotor shaft can be used on inclined conveyors to prevent the belt from moving
backwards when power supply is off. The Mechanical Backstop Function is
available for all Drum Motor models except 113s and D-series.
Encoder solution: The pulses of the Encoder can be used for positioning, speed
and rotational direction control (see "Options and accessories", page 71).