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We present a coupled channel unitary approach to obtain states dynamicallygenerated from the meson baryon interaction with hidden charm, usingconstraints of heavy quark spin symmetry. We use as basis of states, $\bar DB$, $\bar D^* B$ states, with $B$ baryon charmed states belonging to the 20representations of SU(4) with $J^P=1/2^+,~3/2^+$. In addition we also includethe $\eta_c N$ and $J/\psi N$ states. The inclusion of these coupled channelsis demanded by heavy quark spin symmetry, since in the large $m_Q$ limit the$D$ and $D^*$ states are degenerate and are obtained from each other by meansof a spin rotation, under which QCD is invariant. The novelty in the work isthat we use dynamics from the extrapolation of the local hidden gauge model toSU(4) and we show that this dynamics fully respects the constraints of heavyquark spin symmetry.  With the full space of states demanded by the heavy quark spin symmetry andthe dynamics of the local hidden gauge we look for states dynamically generatedand find four basic states which are bound, corresponding to $\bar D \Sigma_c$,$\bar D \Sigma_c^*$, $\bar D^* \Sigma_c$ and $\bar D^* \Sigma_c^*$, decayingmostly into $\eta_c N$ and $J/\psi N$. All the states appear in isospin $I=1/2$and we find no bound states or resonances in $I=3/2$. The $\bar D \Sigma_c$state appears in $J=1/2$, the $\bar D \Sigma_c^*$ in $J=3/2$, the $\bar D^*\Sigma_c$ appears nearly degenerate in $J=1/2, ~3/2$ and the $\bar D^*\Sigma_c^*$ appears nearly degenerate in $J=1/2, ~3/2, ~5/2$, with thepeculiarity that in $J=5/2$ the state has zero width in the space of stateschosen. All the states are bound with about 50 MeV with respect to thecorresponding $\bar D B$ thresholds and the width, except for the $J=5/2$state, is also of the same order of magnitude.

Combining heavy quark spin and local hidden gauge symmetries in the dynamical generation of hidden charm baryons