3.7 Control Circuit Wiring A F C D E B A – Drive side B – Connect shield to ground terminal of drive. C – Insulation D – Control device side E – Shield sheath (Insulate with tape) F – Shield Figure 3.14 Preparing the Ends of Shielded Cables When setting the frequency by analog reference from an external potentiometer, use shielded twisted-pair wires and ground the shield of twisted-pair wires to the ground terminal of the drive. NOTICE: The analog signal lines between the drive and the operator station or peripheral equipment should not exceed 50 meters when using an analog signal from a remote source to supply the frequency reference.
Failure to comply could result in poor system performance. A B +V A1 C D AC A – Drive B – Ground terminal (shield connection) C – (+V) Frequency setting power source +10.5 Vdc maximum 20 mA D – (A1) Main speed frequency reference 0 to +10 Vdc (20 kΩ) or 4 to 20 mA (250 Ω)/ 0 to 20 mA (250 Ω) Figure 3.15 Wiring the Frequency Reference to the Control Circuit Terminals (External Reference) Electrical Installation 3 SIEP C710606 33A OYMC AC Drive – J1000 User Manual 43