Component description Dia Diagnosis request button Aus OFF Br Brake contact Sp Memory + Button for increasing idle speed Button for reducing idle speed Block circuit diagram DC Power supply DC + Isolation amplifier DC Power supply Threshold value comparator DC + 1 10 22 24 23 21 20 19 18 17 16 15 14 13 12 11 9 8 7 6 5 4 3 2 + Power supply 24 V DC EDC: 20 (Dia B) EDC: 44 (FGR) EDC: 49 (ISO L) SP 680 EDC: 43 (Br) SET – (emergency operation) SET + (emergency operation) 62 SET+ 511 EDC: 13 (GND 0) EDC: 35 (MDB) 330 5 Watt 3k08 External reduction EDC: 50 (TKS) + 4–20mA (Input) Isolation amplifier 470 4–20mA EDC: 27 (PWG Output) EDC: 39 (LGS) 1) Reference 0,64–3,2 V Emergency operation 2) EDC:
27 (pedal value transmitter measurement) Threshold value 1V (idle switch) Reference 1k Threshold value 1V (emergency operation) 1) Relay picked up if EDC PIN 27 above 1 V, LED comes on 2) Relay picked up if EDC PIN 27 below 0,78 V, LED comes on 22 1k BR. SET – 5k 2k 680 200