Harmonic Drive CHA - Page 80

80 1018854 12/2015 V01
Maximum DC bus voltage U
DC (max)
[VDC]
The maximum DC bus power supply for the correct operation of the actuator. This value may only be exceeded for a short
period during the braking or deceleration phase.
Maximum hollow shaft diameter d
H (max)
[mm]
For gears with a hollow shaft, this value is the maximum possible diameter of the axial hollow shaft.
Maximum input speed (grease lubrication) n
in (max)
[rpm]
Maximum allowable input speed with grease lubrication.
Maximum input speed (oil lubrication) n
in (max)
[rpm]
Maximum allowable input speed for gearing with oil lubrication.
Maximum motor speed n
max
[rpm]
The maximum allowable motor speed.
Maximum output speed n
max
[rpm]
The maximum output speed. Due to heating issues, this may only be momentarily applied during the operating cycle. The
maximum output speed can occur any number of times as long as the calculated average speed is within the permissible
continuous operation duty cycle.
Maximum output torque T
max
[Nm]
Specifies the maximum allowable acceleration and deceleration torques. For highly dynamic processes, this is the maximum
torque available for a short period. The maximum torque can be parameterised by the control unit where the maximum
current can be limited. The maximum torque can be applied as often as desired, as long as the calculated average torque is
within the permissible continuous operation duty cycle.
Maximum power P
max
[W]
Maximum power output.
Mechanical time constant τ
m
[s]
The mechanical time constant is the time required to reach 63% of its maximum rated speed in a no-load condition.
Momentary peak torque T
M
[Nm]
In the event of an emergency stop or collision, the Harmonic Drive® Gearing may be subjected to a brief collision torque.
The magnitude and frequency of this collision torque should be kept to a minimum and under no circumstances should the
collision torque occur during the normal operating cycle.
Moment of inertia J [kgm²]
Mass moment of inertia at motor side.
Moment of inertia J
in
[kgm²]
Mass moment of inertia of the gearing with respect to the input.
Moment of inertia J
out
[kgm
2
]
Mass moment of inertia with respect to the output.