When setting the frequency by analog reference from an external potentiometer, use shielded twisted-pair wires, preparingwire ends as shown in Figure 3.40. Connect the shield to the ground terminal of the drive.A E B CDA – Drive sideB – Connect shield to ground terminalof drive.C – InsulationD – Control device sideE – Shield sheath (insulate with tape)F – ShieldFigure 3.40 Preparing the Ends of Shielded CablesNOTICE: The analog signal wiring between the drive and the operator station or peripheral equipment should not exceed 50 meters whenusing an analog signal from a remote source to supply the frequency reference. Failure to comply could result in poor system performance.u Switches and Jumpers on the Control BoardThe control board is equipped with several switches used to adapt the drive I/Os to the external control signals. Figure 3.41shows the location of these switches. Refer to Bypass and Drive Control I/O Connections on page 85 for setting instructions.VIA1 A2Jumper S1Terminal A1/A2Voltage/Current SelectionOFF ONDIP Switch S2RS-422/RS-485Termination ResistorVIFM AMJumper S5Terminal FM/AMVoltage/Current SelectionFigure 3.41 Locations of Jumpers and Switches on the Control Board3.5 Control Circuit Wiring84 YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
