Control unit BH 5911 Realization of fail-safe control circuits for protection of people and machinery. Features . According to - Performance Level (PL) e and category 4 to EN ISO 13849-1: 2008 - SIL Claimed Level (SIL CL) 3 to IEC/EN 62061 - Safety Integrity Level (SIL 3) to IEC/EN 61508 . For emergency stop function, the following inputs and outputs are available: Inputs: 4 monitored start inputs, or 3 start inputs and 1 stop input and 2 Emergency stop inputs Outputs: 3 NO contacts, or 2 NO contacts/1 NC monitoring contact . Parallel connection of several SAFEMASTER M-systems possible . The functions are selected via rotary switch - 1 Emergency stop circuit, 2-channel - 2 Emergency stop circuits, single-channel - 1 Emergency stop circuit, 2-channel + 1 stop single channel . Auto or manual start . 2 semiconductor outputs for status indication . LEDs for status indication . Overvoltage and undervoltage monitoring function with error indication . Permanently monitored feedback loop to connect external contactors . Broken wire and short circuit monitoring function with error indication . Width: 45 mm Technical specifications Cat. / PL acc. to EN ISO 13849-1: 4/e Width: 45mm SIL CL acc. to IEC/EN 62061: 3 Application: Light barrier, Emergency stop Safe output contacts, redundant NO contacts: 3, 2 Type: BH 5911 Manufacturer: E. Dold & Söhne GmbH & Co. KG Type: BH5911.03/00MF0 DC24V Art. No.: 0055531