QS90SR2SP-EX Extension Safety Relay Module Light Curtain Wiring Technical Bulletin

This technical bulletin provides corrected wiring instructions for connecting a safety light curtain to the QS90SR2SP-EX extension safety relay module, ensuring that safety shutdown from the main module is not disabled. It details power supply specifications, current consumption calculations, and connection limitations, including that only up to two extension modules can support light curtains and that the main module must only connect to switches like emergency stops.