Program features 41Default I/O connection diagram (BCU)XD2D Drive-to-drive link1 BDrive-to-drive link (not in use by default)2 A3 BGND4 ShieldX485 RS485 connection5 BNot in use (not in use by default)6 A7 BGND8 ShieldXRO1…XRO3 Relay outputs11 NC XRO1: Not in use250 V AC / 30 V DC / 2 A12 COM13 NO21 NC XRO2: Fault(-1) 2) (Energized = no fault)250 V AC / 30 V DC / 2 A22 COM23 NO31 NC XRO3: Running 2) (DDC running, fan control on)250 V AC / 30 V DC / 2 A32 COM33 NOXSTO XSTO connector1 OUT XSTO connector. Both circuits (power module, control unit) must be closed forthe unit to start. (IN1 and IN2 must be connected to OUT.) 8)2 SGND3 IN14 IN25 IN1Not in use6 SGND7 IN28 SGNDXDI Digital inputs1 DI1 Temp fault 2) (0 = choke overtemperature)2 DI2Not in use by default.3 DI34 DI45 DI56 DI67 DIILXDIO Digital input/outputs1 DIO1 Not in use by default2 DIO2 Not in use by default3 DIOGND Digital input/output ground4 DIOGND Digital input/output groundXD24 Auxiliary voltage output5 +24VD +24 V DC 200 mA 6)6 DICOM Digital input ground7 +24VD +24 V DC 200 mA 6)8 DIOGND Digital input/output groundDICOM=DIOGND Ground selection switch 7)XAI Analog inputs, reference voltage output1 +VREF 10 V DC, RL 1…10 kohm2 -VREF -10 V DC, RL 1…10 kohm3 AGND Ground4 AI1+ Not in use by default.0(2)…10 V, Rin > 200 kohm 3)5 AI1-6 AI2+ Not in use by default.0(4)…20 mA, Rin = 100 ohm 4)7 AI2-XAO Analog outputs1 AO1 Zero 2) 0…20 mA, RL < 500 ohm2 AGND3 AO2 Zero 2) 0…20 mA, RL < 500 ohm4 AGNDXPOW External power input1 +24VI24 V DC, 2.05 A2 GND3 +24VI4 GNDX12 Safety functions module connection (not in use in DC/DC converter)X13 Control panel connectionX205 Memory unit connection
