9. Schaltgerät - Kessel

5. Electrical connectionsTWIN SYSTEM- HEED SAFETY INSTRUCTIONS!Work to be done Switch unit from model year 01/10 Switch unit up to model year 12/09• The terminals are marked with switch symbols.Outputs"Malfunction" and"warning"• The "malfunction" and "warning"messages are issued via a relay(changeover contact) withoutprotective circuit. Inductive loadsmust be dejammed externally.The quiescent state (currentless)of the relays is printed onthe board. It means "malfunction"and "warning" message isswitched on.•42 V dc/ 0,5 A• The "malfunction" and "alarm" messages are issuedvia a relay (changeover contact) withoutprotective circuit. Inductive loads must be dejammedexternally. The quiescent state (currentless)of the relays is printed on the board. Itmeans "malfunction" and "alarm" message isswitched on.• The relay contacts do not have any internal connectionto any kind of supply or operating voltages ofthe control unit and are safely separated from theseup to a working voltage of 300 V according to TableD.10 of the standard EN 61010 (excess voltage category2 and degree of soiling 2).• The relays have been designed for switching 230 V/ 2 A. Suitable measures must be taken to restrictthe current externally to this value.• The relays must not be used to switch different phases.The phase may deviate from L1 however.5.4 Checks- on the setting of the motor protection switchesThe motor protection switches must be set to thevalues for rated current of the respective pumpsas specified in section 3.5.5. Configuration of switch unit (from model year 01/10)The DIP switch is located at the top right of the PCB in the switch unit and has four setting possibilities1. Switch: Sensor selection- Switch up: Level measurement using float switcher- Switch down: Level measurement using air pressure switch2. Switch: Level heights- Switch up: Underground pumping stations (with submersible pumps)- Switch down: Lifting stations (using air pressure switch)3. Switch: Configuration tables (only for service partners)4. Switch: Anti-blocking system- Switch up: Anti-blocking system off- Switch down: Anti-blocking system on60