Basic considerations
- For group drives, the 24 V supply of several MOVIMOT® drives can be made available by a single safety relay. The maximum possible number of units ("n" units) results from the maximum permitted contact load of the safety relay and the maximum permitted voltage drop of the DC supply for MOVIMOT® inverters.
- Other requirements of the safety relay manufacturer (such as protecting the output contacts against welding) must be strictly observed. The basic conditions described in the conditions of the certification report for MOVIMOT® MM..D also apply to cable routing.
- For EMC reasons, the maximum cable length is limited to 100 m. Other instructions published by the manufacturer on the use of safety relays for specific applications must also be observed.
- A calculation based on the technical data for MOVIMOT® MM..D must be performed separately for each group disconnection.
Additional information
