Operating instructionsM3G150-NA02-52Translation of the original operating instructions4.5 Connection screenNo. Conn. Designation Function / assignmentKL 1 1 L1 Mains supply connection, supply voltage 3~380-480 VAC; 50/60 HzKL 1 2 L2 Mains supply connection, supply voltage 3~380-480 VAC; 50/60 HzKL 1 3 L3 Mains supply connection, supply voltage 3~380-480 VAC; 50/60 HzPE PE Earth connection, PE connectionKL 2 1 NO Status relay, floating status contact; normally open; close with errorKL2 2 COM Status relay; floating status contact; changeover contact; common connection; contact rating 250 VAC / max.2 A (AC1) / min. 10 mAKL2 3 NC Status relay, floating status contact; break with errorKL 3 1 RSA Bus connection RS-485, RSA, MODBUS RTU; SELVKL 3 2 RSB Bus connection RS-485, RSB, MODBUS RTU; SELVKL 3 3 / 10 GND Signal ground for control interface; SELVKL 3 4 Ain1 U Analogue input 1, set value: 0-10 V, Ri = 100 kΩ, parametrisable curve, only usable as alternative to inputAin1; SELVKL 3 5 + 10 V Fixed voltage output 10 VDC, +10 V ±3%, max. 10 mA, short-circuit-proof, power supply for externaldevices (e.g. potentiometer), SELVKL 3 6 Ain1 I Analogue input 1, set value: 4-20 mA; Ri = 100 Ω, parametrisable curve, only usable as alternative to inputAin1 U; SELVKL 3 7 Din1 Digital input 1: enabling of electronics,enabling: open pin or applied voltage 5-50 VDCdisabling: bridge to GND or applied voltage <1 VDCreset function: triggers software reset after a level change to <1 VDC; SELVKL 3 8 Din2 Digital input 2: parameter set switch 1/2, according to EEPROM setting, the valid/used parameter set can beselected via bus or via digital input DIN2.Parameter set 1: open pin or applied voltage 5-50 VDCParameter set 2: bridge to GND or applied voltage <1 VDC; SELVKL 3 9 Din3 Digital input 3: controller function of integrated controller, according to EEPROM setting, the controller functionof the integrated controller is normally/inversely selectable per bus or per digital inputnormal: open pin or applied voltage 5-50 VDCinverse: bridge to GND or applied voltage <1 VDC; SELVKL 3 11 Ain2 U Analogue input 2, actual value: 0-10 V, Ri = 100 kΩ, parametrisable curve, only usable as alternative to inputAin2; SELVKL 3 12 + 20 V Fixed voltage output 20 VDC, +20 V +25/-10%, max. 50 mA, short-circuit-proof, power supply for externaldevices (e.g. sensors); SELVKL 3 13 Ain2 I Analogue input 2, actual value: 4-20 mA, Ri = 100 Ω, parametrisable curve, only usable as alternative toinput Ain2 U; SELVKL 3 14 Aout Analogue output 0-10 VDC, max. 5 mA, output of the current motor level control coefficient / motor speedparametrisable curve; SELVItem no. 50851-5-9970 · ENG · Revision 78381 · Release 2012-09-12 · Page 9 / 12ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · info1@de.ebmpapst.com · www.ebmpapst.com