Interroll Drum motor series i, S, S/A, D
Assembly and installation
86
Version 4.1 (06/2015) en-US
Translation of original instruction manual
NOTICE
Damage of the drum motor with backstop due an incorrect connection of the rotational
direction
4
Connect the drum motor according to the connection diagrams (see the chapter "Connection
diagrams" of the respective series). An arrow on the housing end cover on the electrical
connection side of the drum motor shows the correct rotational direction.
The drum motor is delivered with an installed electromagnetic brake (if it does not feature a
24-V-DC brake). The rectifier is an accessory part and must be ordered separate from the motor.
4
Connect the rectifier and the brake according to the connection diagrams (
diagrams for the i-series", page 29
The rectifier has an AC input and a DC output to the brake winding.
DANGER
Risk of injuries when used as safety brake
When large loads are being held, the motor can unexpectedly rotate in the opposite direction.
As a result, loads may fall down and hit or fatally injure persons.
4
Do not use the electromagnetic brake as safety brake.
4
If a safety brake is required, install a suitable additional safety brake system.
NOTICE
Damage of the drum motor and the brake if both are operated simultaneously
4
Route the control circuits in such a way that motor and brake do not work against each
other.
4
Consider the response time for applying and releasing the brake (depending on temperature
and oil viscosity, it can amount to 0.4 to 0.6 seconds).
4
Apply the brake only after the current supply to the motor has been switched off.
4
Start the motor only after the brake has been released.
NOTICE
Damage of the drum motor due to insufficient holding torque of the brake
The holding torque of the brake can be too small for the rated torque of some motors.
4
Ensure that the holding torque of the brake is sufficient. Contact Interroll for the required
holding torque.
Backstop
Electromagnetic brake
