1-4 Connection „ When the optional Braking Resistor 3G3AX-RBA/-RBB/-RBC is used 1 The following is an example of connections using the Braking Resistor 3G3AX-RBA/-RBB/-RBC. Up to five units can be connected in parallel. For parallel connection, use Braking Resistors with the same resistance. Be sure to remove the built-in resistor from the bottom of the Regenerative Braking Unit. For DIP switch settings, refer to "2-1 DIP Switch Setting"(page 2-1).
Design (*1) MC1 MC2 BSS RY RY 200 V 50/60 Hz 220 V 60 Hz Operation power supply BS MC1 MC2 MCB MC1 MC2 Inverter Motor 3-phase 400 V R R/L1 U/T1 S T S/L2 T/L3 W/T3 V/T2 P/+2 P P N SL1 SL2 AL1 AL2 RB 1(AL1) RB N/- 3G3AX-RBU41 Master R1 2(AL2) P R2 MA1MA2 1(AL1) RB 2(AL2) P 3G3AX-RBA/-RBB/-RBC Two resistors connected in series Alarm terminal internal connections P P N SL1 SL2 AL1 AL2 RB 1(AL1) RB AL1 AL2 3G3AX-RBA /-RBB/-RBC 3G3AX-RBU41 Slave R1 2(AL2) P Built-in resistance temperature relay 1(AL1) R2 MA1MA2 1(AL1) 2(AL2) P RB R1 2(AL2) 3G3AX-RBA/-RBB/-RBC Two resistors connected in series R2 Temperature relay SL1 SL2 AL1 AL2 RB P P N 3G3AX-RBU41 Slave R1 1(AL1) 2(AL2) P RB R2 MA1MA2 1(AL1) 2(AL2) P RB 3G3AX-RBA/-RBB/-RBC Two resistors connected in series *1.
To select RY, check the MC coil and RY contact specifications. 1-10