AS Interface module 188849 New NFP

AS-Interface sensor/actuator module VAA-4E4A-KE-ZE/R Housing with removable, mechanical and color coded terminals Communication monitoring Inputs for 2- and 3-wire sensors Isolated relay output Addressing jack Selectable supply to the sensors: External or from the module Function display for bus, internal sensor supply, inputs, and outputs Product Description KE switch cabinet module 4 inputs (PNP) and 4 relay outputs General specifications Slave type Standard slave AS-Interface specification V2.1 Required master specification ≥ V2.0 UL File Number E106378 Functional safety related parameters MTTFd 300 a Mission Time (TM) 20 a Diagnostic Coverage (DC) 0 % Indicators/operating means LED FAULT Fault display; Red LED red: Communication fault or address is 0 red, flashing: Overload, internal input supply LED INT Internal input supply active; LED green LED PWR AS-Interface voltage; LED green LED IN switching state (input); 4 LED yellow LED OUT Switching state (output); 4 LED yellow Electrical specifications Auxiliary voltage (input) 12 ... 30 V DC PELV Rated operating voltage 26.5 ... 31.6 V from AS-Interface Rated operating current ≤ 35 mA (no sensors)/max. 210 mA Surge protection O1 ... O4: Over voltage category II UEXT, Ue: Over voltage category III, safe isolated power supplies (PELV) Input Number/Type 4 inputs for 2- or 3-wire sensors (PNP), DC Supply from AS-Interface (switch position INT, default settings) or external UEXT (switch position EXT) Voltage 21 ... 31 V DC (INT) Current loading capacity ≤ 150 mA, overload- and short-circuit protected (INT) Input current ≤ 8 mA (limited internally) Switching point according to DIN EN 61131-2 (Type 2) 0 (unattenuated) ≤ 2 mA 1 (attenuated) ≥ 4 mA Signal delay < 2 ms (input/AS-Interface) Output Number/Type 4 relay outputs, normally open Supply none Nominal load Per contact 2 A / 30 V DC (acc. UL max. 24 V DC); 2 A / 253 V AC Per module 8 A Control circuit ≤ 8 mA per relay (from AS-Interface) Switching delay < 10 ms (AS-Interface/contact) Usage category DC-13 and AC-14 Switching Mechanical 5 x 106 Electrical 0.2 x 106 (250 V AC, 2 A, cos φ = 0.4)