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Appendix
A.1
Glossary
Rated torque M
N
Thermally permissible continuous torque in S1 duty at the rated motor speed.
Rated speed n
N
The characteristic speed range for the motor is defined in the speed-torque diagram by the
rated speed.
Rated current I
N
RMS motor phase current for generating the particular rated torque. Specification of the
RMS value of a sinusoidal current.
Rated converter current I
RMS converter output current (per phase) that can be supplied on a continuing basis by the
recommended Motor Module The recommended Motor Module is determined with the stall
current I
Braking torque M
br rms
M
br eff
Braking resistance R
R
opt
external to the motor winding for the armature short-circuit braking function.
DE
Drive end of the motor
Cyclic inductance L
D
The cyclic inductance is the sum of the air gap inductance and leakage inductance relative to
the single-strand equivalent circuit diagram. It consists of the self-inductance of a phase and
the coupled inductance to other phases.
S-1FT7 synchronous motors
Configuration Manual, 09/2018, A5E45099423B AA
N conv
.
0 (100K)
corresponds to the average braking torque for armature short-circuit braking.
opt
corresponds to the optimum resistance value per phase that is switched in series
A
399
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