1-4 Connection 1-4 Connection 1 Design 3G3AX-RBU21/-RBU22 Connection Example „ When the built-in resistor is used The following is an example of connections using the built-in resistor. Up to five units can be connected in parallel. For DIP switch settings, refer to "2-1 DIP Switch Setting"(page 2-1).
(*1) MC1 MC2 BSS RY RY BS MC1 MC2 EF MCB MC1 MC2 Inverter 3-phase 200 V R S R/L1 S/L2 U/T1 V/T2 Motor T T/L3 W/T3 P/+2 P P N SL1SL2 AL1AL2 RB 3G3AX-RBU21 /-RBU22 Master N/- R1 R2 MA1MA2 Alarm terminal internal connections AL1 AL2 P P N SL1SL2 AL1 AL2 RB Built-in resistance temperature relay 3G3AX-RBU21 /-RBU22 Slave R1 R2 MA1MA2 R1 R2 P P N SL1 SL2 AL1 AL2 RB 3G3AX-RBU21 /-RBU22 Slave R1 R2 MA1MA2 *1. To select RY, check the MC coil and RY contact specifications. 1-7