Interroll Drum motor series i, S, S/A, D
12
Version 4.1 (06/2015) en-US
Translation of original instruction manual
General technical information
Product description
The drum motor is a completely enclosed electrical drive roller. It replaces external components
such as motors and gears, which require frequent maintenance.
The drum motor can be used in environments with high coarse and fine dust exposure as well as
exposed to water jets and spraying water and is resistant to most of the aggressive ambient
conditions. In aggressive environments and environments with salt water, only stainless steel
motors should be used. Thanks to protection classification IP66 or IP69k and its stainless steel
design (upon request), the drum motor is also suitable for use in the food processing industry and
pharmaceutical industry as well as for applications with high hygienic demands. The drum motor
can be used without as well as with a drum coating to increase the friction between drum motor
and conveyor belt or with profile coating for the drive of form-fit driven belts.
The drum motors of series S, S/A and i are driven by an asynchronous three-phase induction
motor. It is available in different power stages and for most of the international supply voltages.
The drum motors of the D-series are driven by a synchronous motor and must be connected to a
suitable drive control unit. For additional information about the drive control unit, see the
respective manual.
The drum motor contains oil as lubricant and coolant which dissipates the heat via the drum and
the conveyor belt.
If an asynchronous drum motor without belt or with a form-fit driven belt is used, a special
design is available to ensure cooling.
Integrated thermal overload protection:
A thermal cut motor protection switch integrated in
the winding head protects against overheating. The switch trips if the motor overheats. However,
it has to be connected to a suitable external control device that interrupts the current supply to
the motor in case of overheating (
See "Thermal protection", page 14
Integrated electromagnetic brake:
The integrated electromagnetic brake can hold loads. It
acts directly on the rotor shaft of the drum motor and is controlled by a rectifier. The holding
force of each drum motor with brake has to be calculated first and does not always correspond
to the belt pull of the motor. The electromagnetic brake is available for all drum motors of the
i-series (
See "Electromagnetic brake for the i-series", page 59
).
Mechanical backstop:
The mechanical backstop attached to the rotor shaft and, for 80i, in the
cover, can be used for ascending conveyors. It prevents the belt from running in reverse direction
in case of a power failure. The mechanical backstop is available for all drum motors, except
113s and the D-series.
Encoder:
The signal of the encoder can be used for position determination and for controlling
the speed and rotational direction (
See "Options and accessories", page 59
).
Options
