Kollmorgen AKM, Instruction Manual

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AKM Installation | 7 Technical Data
7.12 Technical Data Brakes
FAILSAFE, HOLDING BRAKE
The holding brake is designed to provide static holding torque to the motor shaft with the brake coil de-energized.
The brake must first be released (coil energized) prior to commanding motor rotation as determined by its drop-out
time. The brake is intended for holding or “parking” of a stationary motor. It is not intended for dynamic braking.
There should be absolutely no motion of the rotor when power is removed from the brake coil.
It may be used for a limited number of emergency stop conditions, however such use will eventually cause wear,
leading to eventual malfunction of the brake. Number of emergency stops strongly depends on applied load.
Contact Kollmorgen for proper calculation of energy That needs to be absorbed during emergency stops in applic-
ation.
Contamination of the motor internal compartment by oil or other foreign materials will result in failure of the brake.
Check the suitability of motor sealing for the working environment.
Motor Family - AKM1 AKM2 AKM3 AKM4 AKM5 AKM6 AKM7 AKM8 Notes
Nominal Operating
Voltage VDC
±10%
24
Minimum Dry Static
Torque, 120°C
Nm 0,41 1,42 2,5 5,3 14,5 25,0 53,0 150,0 1
Maximum Speed rpm 8000 8000 8000 6000 6000 4750 4000 3500
Maximum
Acceleration
rad/s2 167000 84500 60000 37000 15400 6800 5800 6700 11,12
Coil Resistance,
25°C
Ω
±7%
89,9 68,5 56,9 45,2 29,6 22,4 16,2 11,7
Maximum Release
Voltage (New Brake)
VDC 18 2,14
Minimum Re-Engage
Voltage (New Brake)
VDC ≥0,8 ≥1,5 3,14
Current @24V, 25°C ADC 0,27 0,35 0,42 0,53 0,81 1,07 1,48 2,05 10
Maximum Release
Current (New
Brake), 25°C
ADC 0,20 0,26 0,32 0,40 0,61 0,80 1,11 1,54 14
Power Consumption
@24V, 25°C Watt
±7%
6,4 8,4 10,1 12,8 19,5 25,7 35,6 49,0
Response
(Engage/Closing)
Time
ms 22 36 20 30 30 40 70 100 6,8,9
Release (Opening)
Time
ms 45 45 50 75 115 155 170 300 6,7
Maximum Backlash deg. 1,15 1,01 1,01 0,81 0,71 0,51 0,44 0,44 4,5,12
Typical Backlash deg. 0,53 0,46 0,46 0,37 0,31 0,24 0,20 0,20 4,5,12
Friction Disc Inertia kg.cm2 0,0013 0,014 0,014 0,090 0,214 0,717 2,460 5,530
Weight kg 0,18 0,27 0,35 0,63 1,10 2,00 2,90 8,00
B
10d
- 20.000.000 15.000.000 13,15
Temperature Range °C +5°C to 120°C
Minimum Number of
Springs
- 5 6 8 6 8 12 12 14 15,16
Notes:
Note 1: Minimum Dry Static Torque - max. torque that can be applied to a brake without the risk of slipping.
Note 2: Maximum Release Voltage - value of voltage where the brake is 100% OPEN.The brake is mounted
inside of the motor.
184 Kollmorgen | kdn.kollmorgen.com | June 2018