Kollmorgen AKM 2G Manuel D'installation page 335

AKM2G Instructions | 7 Technical Data
Note 4: Backlash - amount of clearance, or free rotation, from a point based in one direction to a point
in the opposite direction with torque applied, between the drive connection of the brake to the motor
shaft. 25% of the rated torque of the brake can be applied during the backlash measurement.
Note 5: Maximum Backlash is calculated using worst-case tolerancing, and typical backlash is calculated
using statistical tolerancing.
Note 6: Release and response times measured on standalone brakes with Kollmorgen AKD drive.
Release/Response Time of the brake measured with a diode and a transistor in power supply circuit.
Note 7: Brake release time, i.e. the time for the brake to release when the power is applied to the brake,
is fairly consistent regardless of how the brake is switched.
Note 8: Brake response time, i.e. the time taken for the brake to re-engage when the power is cut if the
circuit contains any form of arc suppression over the switching, then the decay circuit within the brake,
when the power is cut, will be prolonged.
Note 9: Cutting the brake supply on the 'dc' side, i.e. a clean cut in the brake supply at the brake
connection, will give the fastest possible switching.
Note 10: Current of the brake is calculated from nominal voltage and nominal resistance at 25°C
Note 11: Acceleration calculated from maximum acceleration of Kollmorgen AKM2G motor with the
brake without external load.
Note 12: Brake is able to perform 50.000.000 reverse cycles with maximum acceleration and backlash
up to 0.8°.
Note 13: B is number of operations where 10% of the sample would fail to danger.
10d
Note 14: New brake - brake mounted in the motor without previous usage. Parameters could be
influenced by number of emergency stops absorbed by brake during lifetime.
Note 15: Response times measured on brakes connected to a Kollmorgen AKD drive. Response time of
the brake measured with a diode and a transistor in power supply current.
Note 16: Total time needed to achieve 90% static torque (see graphs below). Vertical load application
setup requires using the AKD or alternative drive manufacturers total torque rise time. See the following
graphs for the total time needed to achieve 90% of static torque.
Kollmorgen | kdn.kollmorgen.com | August 2020 335