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Download - ISI D. Gatermann
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Configuring 4.9 Electrical assembly, protective measures and grounding Example: Assembly with CPU 31xC and isolated modules The figure below shows an example of such a configuration: A CPU 31xC with isolated modules. The CPU 31xC (1) is automatically grounded. 36 6&38 ', '2 8LQWHUQDO 'DWD 0LQWHUQ / / w3 / 0 1 3( 1 *URXQGLQJEXVEDULQ FDELQHW / 0H[WHUQDO 9'&ORDGFXUUHQWVXSSO\ / 1 9$&ORDGFXUUHQWVXSSO\ Common potential modules In a configuration containing modules with common potential, the reference potentials of the control circuit (Minternal) and analog circuit (Manalog) are not galvanically isolated. CPU 31xC and CPU 31x: Installation Operating Instructions, 03/2011, A5E00105492-12 47
