2.4 Mechanical interface The BMG must be tensioned properly to ensure that the maximum hub-load on Pulley Block is less than 2000N. A mounting arm may be used to fix the J180 Mount. Pay attention to how the tensioning adjustment is made to avoid belt slip. The mounting bracket of the motor should provide enough stiffness to ensure that the vibration excitation on the mounting arms of the motor does not exceed the limits in the table below. Sinusoidal vibration Frequency [Hz] Amplitude of acceleration (Perpendicular to the shaft) [m/s2] Amplitude of acceleration (Parallel to the shaft) [m/s2]
10
25
25
100
100
50
200
20
50
800
50
25
Random vibration Frequency [Hz]
PSD (Perpendicular to the shaft) [(m/s2)2/Hz]
PSD (Parallel to the shaft) [(m/s2)2/Hz]
10
10
5
100
10
5
150
0.1
0.05
700
0.1
0.05
800
10
5
2000
10
5
Maximal acceleration RMSle181m˜/s2
Maximal acceleration RMSle90.5m/s2
2.5 Safety BMG has voltage above 36V AC inside, so the surface is protected by an insulated cover to isolate the internal high voltage from direct contact with the human body. If the insulation cover is found to be damaged, stop using BMG immediately. When BMG is working, direct contact with the live part is not possible. BMG is an air-cooled motor with integrated high-speed rotating fans, and direct contact may cause damage to the human body or the BMG. When the motor is running, it is forbidden to use fingers or other foreign objects to penetrate the inside of the motor. BMG generates a lot of heat when working, which increases the temperature of the motor body and the surrounding environment. Do not approach or contact directly until the motor is sufficiently cooled, otherwise it will cause human body damage.
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