Lenze DSD - Manual (Page 29)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
29
3 User interface
3.1 Control and function elements
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
3.1.3.2 "Gearbox" image
Symbol Description
A(M
eq
) Ratio of the equivalent torque to the max. permissible torque:
M
eq
/ M
max,per,G
A(M
in,max
) Clutch utilisation with reference to the max. drive torque
• For flange mounting only
A(M
max
) Ratio of the max. torque of the application to the max. permissible torque of the gearbox:
M
max
/ M
max,per,G
A(n
max
) Max. occurring speed relative to the max. speed of the gearbox:
n
max
/ n
max,G
A
th,1,G
(n
th
) Utilisation of the gearbox relative to the thermal output speed
A(T) Utilisation of the gearbox relative to the fatique strength
• If the value is > 100 %, an exact check is required.
Design Direct or standard mounting of the motor on the Lenze gearbox
i
req
Required ratio (Lenze gearbox and additional drive element if required)
• Is calculated from the intended input speed of the gearbox, relative to the max. speed of the
application:
n
in
/ n
max
• Ratio i
req
is required to operate the motor with the field weakening factor specified by DSD.
i
2,req
Required ratio of the additional drive element under consideration of a Lenze gearbox, if any
• Is calculated from the intended input speed, relative to the max. speed of the application:
n
in
/ n
max
• Ratio i
req
is required to operate the motor with the field weakening factor specified by DSD.
i
act,G
Actual ratio of the Lenze gearbox
i
act,K
Actual ratio of the additional drive element
J
out,K
Moment of inertia at the output end of the additional drive element
k
G
Correction factor for the torque of the gearbox
M
per,out
Permissible output torque without speed evaluation.
M
eq
Equivalent output torque of the Lenze gearbox
• Is calculated from the diagram for the torque of the application.
η
K
Efficiency of the additional drive element at the rated point
n
in,max
Max. input speed of the Lenze gearbox
• Is determined from the M-n diagram of the Lenze gearbox
n
out,max
Max. speed at the output shaft
n
per,in,max
Max. permissible input speed of the Lenze gearbox
n
per,th,out
Permissible thermal output speed of the gearbox