Operation; Before You Begin; Running-In Process - KEB COMBINORM Instruction Manual

Operation

6 Operation
The COMBINORM brake is DC electrically powered by a control device provided by the
customer as befits the specific application.
See KEB product COMBITRON for AC to DC power rectification.

6.1 Before You Begin

Prior to the initial start-up of the system, go through the following checklist to ensure the
brake will function properly.
☐
Ensure the ordered voltage and performance data match the brake label data.
☐
Check to see if the brake is damaged or if there are foreign particles
contaminating the area of operation or the brake air gap.
☐
Clean friction surfaces with a non-aggressive alcohol based brake cleaner.
☐
Ensure the air gap is properly adjusted and that the brake engages when
switched on and releases when switched off.
☐
Perform the Running In Process.
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CAUTION

6.1.1 Running-In Process

CAUTION
To reach the nominal braking torque after installation or maintenance you must perform a
burnishing or "running-in" process.
1. Rotate the motor with a slip speed of 25 rpm.
2. Power on the magnet and allow the brake to slip for 1 second.
3. Power off the magnet for 1 second.
4. Repeat steps 2-3 for five repetitions.
5. Stop the motor.
Test the braking torque after performing the running-in process. Repeat the process if the
rated braking torque has not been reached.
2021 KEB America, Inc.
©
See section Running-In Process.
Loss of Braking Torque!
 If the brake is damaged or contaminated, or if the switching function
can no longer be guaranteed, do not put the brake into operation!
Limited Braking Torque!
 The nominal braking torque is not reached until a burnishing or
"running-in" period is completed.
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