Interroll Drum motor series i, S, S/A, D
Options and accessories
60
Version 4.1 (06/2015) en-US
Translation of original instruction manual
AC-switching (The input voltage at terminals 1 and 2 of
the brake rectifier is switched.)
Long fall delay
Brake voltage approx. 1 V
Brake is softly applied
DC-switching (The output voltage is switched via
terminals 3 and 4 of the brake rectifier.)
The switching contact must be suitable for high-voltage
peaks and contact-breaking sparks resulting from with
DC-switching.
Short fall delay
Brake voltage approx. 500 V
Brake is abruptly applied
Electronic rectifier Behavior similar to DC-switching
Overexcitation voltage = 2 x rated operating voltage, t
pick up
is halved.
Standard 104 V DC, available off-the-shelf
The braking torque at the drum tube corresponds to the gear ratio of the motor times the
braking torque listed in the table above. For safety purposes, 25 % reserve have to be figured
into the dimensioning of the brake. The brake is not a safety holding brake. Since there are
motor combinations that feature a higher torque than braking torque, it is always recommended
to use the greatest possible gear ratio for the use of a brake.
All brakes are dimensioned for start/stop operation.
The rise and fall delays of the brakes can vary significantly depending on the following factors:
• Oil type and viscosity
• Oil quantity in the drum motor
• Ambient temperature
• Internal operating temperature of the motor
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