142 • VACON® arfiff08 power generationLocal contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/12. IO-CONNECTIONSOPTA1Terminal Signal Description1 +10Vref Reference output Voltage for potentiometer, etc.2 AI1+ DC Ground Analogue input,voltage range 0 10V DCVoltage input DC Ground3 AI1- I/O Ground Ground for reference and controls4 AI2+ AC Measurement range 0 10VDCCurrent input AC Measurement5 AI2-6 +24V Control voltage output Voltage for switches, etc. max 0.1 A7 GND I/O ground Ground for reference and controls8 DIN1 External trip(programmable)Normal closed = external trip9 DIN2 Surge alarm(programmable)Normal closed = Surge alarm10 DIN3 Filter over temperature(programmable)Contact open = Filter over temperatureContact closed = No fault11 CMA Common for DIN 1 DIN 3 Connect to GND or +24V12 +24V Control voltage output Voltage for switches (see #6)13 GND I/O ground Ground for reference and controls14 DIN4 Main contactor acknowledge(programmable)Contact closed = Main contactor closed15 DIN5 DC Ground trip(programmable)Normal closed= DC Ground trip16 DIN6 Emergency switching off(programmable)Normal Close = Emergency switching17 CMB Common for DIN4 DIN6 Connect to GND or +24V18 AO1+ Analogue output Set the ID ID no. Of a signal to beconnected to AO1ProgrammableRange 0 20 mA/RL, max. 50019 AO1-20 DO1 Digital outputExternal FanProgrammableOpen collector, I50mA, U48 VDCOPTA221 RO1 Relay output 1DC supply readyProgrammable22 RO123 RO124 RO2 Relay output 2Main contactor controlNon-Programmable25 RO226 RO2
