YASKAWA A1000 Series Quick Start Manual

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3 Electrical InstallationYASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide 47Electrical Installation3Wire the control circuit only after terminals have been properly grounded and main circuit wiring is complete. Refer toFigure 35 for details. Prepare the ends of the control circuit wiring as shown in Figure 37. Refer to Wire Size andTorque Specifications on page 46.NOTICE: Do not tighten screws beyond the specified tightening torque. Failure to comply may result in erroneous operation, damagethe terminal block, or cause a fire.NOTICE: Use shielded twisted-pair cables as indicated to prevent operating faults. Improper wiring practices could result in drive orequipment malfunction due to electrical interference.Connect control wires as shown in the following figure:Figure 35Figure 35 Terminal Board Wiring GuideUse the space above TB2 to wire TB4 through TB6 as illustrated in Figure 36.Figure 36Figure 36 Terminal Board WiringWhen setting the frequency by analog reference from an external potentiometer, use shielded twisted-pair wires (treatingwire ends as shown in Figure 37 and connect the shield to the ground terminal of the drive.Figure 37Figure 37 Preparing the Ends of Shielded CablesA – Loosen screw to insert wire.Wire in the following order:TB4, TB5, TB6C – Avoid fraying wire strands when strippinginsulation from wire. Strip length 5.5 mm.B – Single wire or stranded wire D – Blade depth of 0.4 mm or lessBlade width of 2.5 mm or lessA – Drive side D – Control device sideB – Connect shield to ground terminal ofdrive.E – Shield sheath (insulate with tape)C – Insulation F – ShieldABTB6 TB5 TB4CDPreparing wireterminal endsYEC_commonYEC_commonA F C DEB