The SL-R11 is a safety control unit of Keyence. It complies with UL and CSA standards. The power supply voltage is 24VDC±10%, with a ripple (P-P) of less than 10%, and the current consumption is less than 150mA. The response speed of FSD1, 2 AUX is 24ms (including the sensor reaction time), and the response speed when E-STOP is input is 20ms. The output specifications of FSD 1,2 are 230VAC 4A, 30VDC 2A (resistive load), etc., and the output specifications of AUX are 125VAC 0.5A, 30VDC 2A (resistive load), etc. The housing protection level is IP20 (IEC60529), and it needs to be installed in a control panel with IP54 or above. The operating environment temperature is -10 to +55°C (without freezing), and the weight is about 380g.