Kollmorgen AKM 2G Manuel D'installation page 229

7.8 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
application.
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
Nominal Operating Voltage
Minimum Dry Static Torque, 120°C
Maximum Speed
Maximum
Acceleration
Coil Resistance, 25°C
Maximum Release Voltage (New
Brake)
Minimum Re-Engage Voltage (New
Brake)
Current @24V, 25°C
Maximum Release Current (New
Brake), 25°C
Power Consumption @24V, 25°C
Response (Engage/Closing) Time
Release (Opening) Time
Maximum Backlash
Typical Backlash
Inertia Adder
Weight Adder
B
10d
Temperature Range
Please contact Kollmorgen for detailed specification and all other inquiries.
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.
Note 3: Minimum Re-Engage Voltage - value of voltage where the brake is 100% CLOSED. The brake is
mounted inside of the motor.
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.
- AKM2G2 AKM2G3 AKM2G4 AKM2G5 AKM2G6 AKM2G7 Notes
VDC
±10%
Nm 2.0 3.3
rpm 8000 8000
rad/s 2
56000 28500
Ω ±7%
50.5 45.7
VDC
VDC
ADC 0.47 0.53
ADC 0.54 0.60
Watt
11.4 12.6
±7%
ms 10 17
ms 40 55
deg. 1.0 1.0
deg. 0.30 0.60
kg.cm 2
0.04 0.12
kg 0.45 0.72
- 20.000.000
°C
Kollmorgen | kdn.kollmorgen.com | August 2018
AKM2G Instructions | 7 Technical Data
24
7.0 16.0 32.0
6000 6000 6000
23000 14000 9000
39.1 27.7 19.5
18
≥1.5
0.61 0.87 1.23
0.70 0.99 1.40
14.7 20.8 29.5
20 50 70
85 110 150
1.0 1.0 1.0
0.55 0.60 0.30
0.36 1.2 3.6
1.36 2.6 4.5
12.000.000
+5°C to 120°C
80.0 1
3500
4000 11,12
15.0
2,14
3,14
1.65 10
1.85
40
65 6,8,9
300 6,7
1.0 4,5,12
0.20 4,5,12
12.3
9.1
13
229