With M = 1 H
and excitation current of 1 A is provided starting at 0.05 s and an armature current of 1 A starting at 0.1 s.
Thus a torque of emf.tau = 1 N.m
is generated, accelerating the inertia J = 0.1 kg.m2
within 0.1 s to emf.w = 1 rad/s
starting from standstill.
Also have a look at the induce voltage which reaches emf.v = 1 V
.