Interroll Drum motor series i, S, S/A, D
Initial startup and operation
Version 4.1 (06/2015) en-US 
Translation of original instruction manual
89
Operation
 CAUTION
Rotating parts and accidental starting
Risk of crushing for fingers
4
 Do not reach between drum motor and belt.
4 Do not remove the protection device.
4 Keep fingers, hair and loose clothing away from the drum motor and the belt.
4 Keep wristwatches , rings, necklaces, piercings and comparable jewelry away from the 
drum motor and the belt.
NOTICE
Damage of drum motor in reversing operation
4
 Ensure that a time delay is in place between forward and reversing movement. Before 
reversing, the motor must come to a complete standstill.
If exact speeds are required, a frequency inverter and/or encoder may have to be used. 
The specified rated speeds of the motor can deviate by ± 10 %. The belt speed indicated 
on the type plate is the calculated speed at the drum diameter under full load, rated voltage 
and rated frequency.
 
4  Check the drum motor for visible damage.
4  Ensure that no contact points exist between objects, conveyor belts and rotating or moving 
parts.
4
  Ensure that the drum motor and the conveyor belt can move freely.
4  Check all safety devices.
4  Ensure that no bystanders are in dangerous areas around the conveyor.
4  Clearly specify and monitor the way materials are placed on the conveyor.
Procedure in case of accident or fault
4  Stop the drum motor at once and ensure that it cannot be started accidentally.
4  In case of an accident: Provide first aid and make an emergency call.
4  Inform the responsible person.
4  Have the malfunction repaired by qualified persons.
4  Start the drum motor only after this has been approved by qualified persons.
Checks before every 
startup