n Serial Communication TerminalsTable 3.8 Control Circuit Terminals: Serial CommunicationsType No. Signal Name Function (Signal Level)MEMOBUS/ModbusCommunication <1>R+ Communications input (+)MEMOBUS/Modbus communication: Use anRS-485 or RS-422 cable to connect the drive.RS-485/422MEMOBUS/Modbuscommunicationprotocol115.2 kbps (max.)R- Communications input (-)S+ Communications output (+)S- Communications output (-)IG Shield ground 0 V<1> Enable the termination resistor in the last drive in a MEMOBUS/Modbus network by setting DIP switch S2 to the ON position. Refer to ControlI/O Connections on page 66 for more information on the termination resistor.u Terminal ConfigurationThe control circuit terminals are arranged as shown in Figure 3.26.MA MB MCM1 M2 M5M3 M6 M4E(G) HC H1 H2 DM+ DM- IG R+ R- S+ S-S1 S2 S3 S4 S5 S6 S7 S8 SN SC SPV+ AC V- A1 A2 A3 FM AM AC MP RP ACFigure 3.26 Control Circuit Terminal Arrangementn Wire Size and Torque SpecificationsSelect appropriate wire type and gauges from Table 3.9. For simpler and more reliable wiring, use crimp ferrules on the wireends. Refer to Table 3.10 for ferrule terminal types and sizes.Table 3.9 Wire GaugesTerminal ScrewSizeTighteningTorqueN•m(lb. in)Bare Wire Terminal Ferrule-Type TerminalWire TypeApplicablewire sizemm2 (AWG)Recomm.wire sizemm2 (AWG)Applicablewire sizemm2 (AWG)Recomm.wire sizemm2 (AWG)S1-S8, SC, SN, SPM3 0.5 to 0.6(4.4 to 5.3)Stranded wire:0.2 to 1.0(24 to 16)Solid wire:0.2 to 1.5(24 to 16)0.75 (18) 0.25 to 0.5(24 to 20) 0.5 (20) Shielded wire,etc.H1, H2, HCRP, V+, V-, A1, A2, A3,ACMA, MB, MCM1-M6MP, FM, AM, ACDM+, DM-R+, R-, S+, S-, IG3.7 Control Circuit WiringYASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide 633 Electrical Installation
