3.6 Main Circuit WiringThis section describes the functions, specifications, and procedures required to safely and properly wire the main circuit inthe drive.NOTICE: Do not solder the ends of wire connections to the drive. Soldered wiring connections can loosen over time. Improper wiring practicescould result in drive malfunction due to loose terminal connections.NOTICE: Do not switch the drive input to start or stop the motor. Frequently switching the drive on and off shortens the life of the DC buscharge circuit and the DC bus capacitors, and can cause premature drive failures. For the full performance life, refrain from switching thedrive on and off more than once every 30 minutes.Refer to Factory Recommended Branch Circuit Protection for UL Compliance on page 344 for details on fuse selection.u Main Circuit Terminal FunctionsTable 3.1 Main Circuit Terminal FunctionsTerminal TypeFunction Page200 VClassDrive Model2A0004 to2A0081 2A0110, 2A0138 2A0169 to2A0415 –400 VClass 4A0002 to4A0044 4A0058, 4A0072 4A0088 to4A0675 4A0930, 4A1200600 VClass 5A0003 to5A0032 5A0041, 5A0052 5A0062 to5A0242 –R/L1Main circuit power supply input Connects line power to thedrive81S/L2T/L3R1-L11Not available Main circuit powersupply inputConnects line power to thedriveRemove the shorting barsconnecting R/L1-R1/L11,S/L2-S1/L21, T/L3-T1/L31when using 12-pulserectification.S1-L21T1-L31U/T1Drive output Connects to the motor 81V/T2W/T3B1 Braking resistor Not available Available for connecting abraking resistor or a brakingresistor unit option –B2⊕2 • DC link chokeconnection(⊕1, ⊕2)(remove theshorting barbetween⊕1 and ⊕2)• DC powersupply input(⊕1, ⊖)Not availableFor connecting:• the drive to a DC powersupply• dynamic braking options• a DC link choke–⊕1DC power supplyinput(⊕1, ⊖) • DC power supply input (⊕1, ⊖)• Braking unit connection (⊕3, ⊖)⊖⊕3 Not availableFor 200 V class: 100 Ω or lessFor 400 V class: 10 Ω or lessFor 600 V class: 10 Ω or less Grounding terminal 103Note: Use terminals B1 and ⊖ when installing a CDBR-type braking unit on drives with built-in braking transistors (Models 2A0004 to 2A0138,4A0002 to 4A0072, and 5A0003 to 5A0052).Wiring Fuses for Models 4A0930 and 4A1200NOTICE: If a fuse is blown or an Ground Fault Circuit Interrupter (GFCI) is tripped, check the wiring and the selection of peripheral devicesto identify the cause. Contact Yaskawa before restarting the drive or the peripheral devices if the cause cannot be identified.Install a fuse on the input side to protect drive wiring and prevent other secondary damage. Wire the fuse so that leakagecurrent in the upper controller power supply will trigger the fuse and shut off the power supply.Select the appropriate fuse from Table 3.2.3.6 Main Circuit WiringYASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide 933 Electrical Installation
