User Manual of A90 Series Inverter The two multi-function output ports are of open collector output type, with COM as the common output port. If the selected function is disabled, the electronic switch will be OFF, and the multi-function output ports will be in the invalid status. If the selected function is enabled, the electronic switch will be ON, and the multi-function output ports will be in the valid status. The open collector can be powered on internally, as shown in Fig. 7-11(a); or by an external power supply, as shown in Fig. 7-11(b). If an external power supply is used, the voltage should be 12-30V.
A90 +24V 24V A90 +24V 24V PLC PLC +5V Y1.Y2 Relay +5V Y1.Y2 Relay - DC + COM COM a) Internal power supply b) External power supply Fig. 7-11 Power Supply of Multi-function Terminal The relay output is from the internal relay of the inverter. The relay has one set of normally open contacts and one set of normally closed contacts. EA When the selected function is disabled, the EB-EC is Relay E coil EB normally closed and EA-EC is normally open. When EC the selected function is enabled, the internal relay coil will be powered on, the EB-EC will be disconnected, and the EA-EC will be engaged. See Fig. 7-12. Fig.
7-12 Relay Contacts 154 ( J pulse, invalid in OG) Function Function code Default Parameter description Unit Attribute code name setting F03.05 Options of output signal type D7 D6 D5 D4 D3 D2 D1 D0 **0*0 ○ * * * * * R1 * Y1 0: level