  We study a model consisting of $N$ nonlinear oscillators with {\em global
periodic} coupling and {\em local multiplicative} and additive noises. The
model was shown to undergo a nonequilibrium phase transition towards a
broken-symmetry phase exhibiting noise-induced "ratchet" behavior. A previous
study \cite{[7]} focused on the relationship between the character of
thehysteresis loop, the number of ``homogeneous'' mean-field solutions and the
shape of the stationary mean-field probability distribution function. Here we
show --as suggested by the absence of stable solutions when the load force is
beyond a critical value-- the existence of a limit cycle induced by
both:multiplicative noise and {\em global periodic} coupling.
