The interface module contains all the main functions required for the remote control of the EFESTO4 / KEEPER light curtain. It constitutes a point of support as interface between light curtain and the machine.
The use of key switches is designed to increase the safety level of the light curtain, in order to ensure that the restart could be done only by authorized and qualified people (in case of maintenance the keys can be removed). The relay module does not contain an internal control circuits. The relays status must be monitored by the light curtain that implements the function of controlling external devices (EDM). In any other application, an external circuit must check the status of the relays in order to reach the desired safety level. The internal connections are mediated by PLUG IN connector to facilitate the operations of wiring, replacement and maintenance. The outputs (channels zero and one) are two safety contacts potential free independent between them and a NC contact potential free.
REL 021 B
external relay module with reset key and output status lamp for EF b
REL 021 D
external relay module with reset key and output status lamp for EF d
REL 022 E
external relay module with reset / override key, output status lamp and muting status for EF e
REL 022 F
external relay module with reset / override key, output status lamp and muting status for EF f1-f2, KP f1-f2, KP h-k