Common Alarm Annunciator RP 5991 Extension Module RP 5991 Features . Common Alarm Annunciator RP 5990, RP 5991 . Fast localisation of failures and their causes . Reduction of standstill times in production . Common alarm annunciator with manual or auto reset of faults . Expandable from 8 to 88 fault signals . Open or closed circuit operation settable with rotational switch on base unit and with link X1/X2 on extension units . Adjustable on delay for input signals 0 to 10 sec . Reset buttons for audible alarm and common alarm on front side . Connection for external reset of audible alarm . Galvanic separation to bus RS485 (optional) . Accessories: buzzer RK 8832, display unit EH 5990, EH 5991 . Width: 70 mm . Base Module RP 5990: - 8 fault signal inputs with indicator LED on the unit - One relay output each for audible alarm and common alarm - Reset buttons for audible alarm and common alarm - Connection for external reset of audible alarm . Extension Module RP 5991: - 8 fault signal inputs with indicator LED on the unit - As option one relay output each for audible alarm and common alarm - As option reset buttons for audible alarm and common alarm Technical specifications Width: 70mm Operate delay: Yes Enclosure design: Distribution board Optical signal: LED Alarm inputs: 8 Alarm inputs extendable up to: 88 Operating principle: Energized on trip, De-energized on trip Optional buzzer: Yes Special features: Bus-compatible, Configurable Type: RP 5991 Manufacturer: E. Dold & Söhne GmbH & Co. KG Type: RP5991S DC24V Art. No.: 0059454