AC100 HIGH-PERFORMANCE VC INVERTER MANUAL INSTALLATION AND WIRING To improve product reliability, please use the inverter where temperature would not change suddenly; when using in a closed cabinet, cooling fan or air conditioning for cooling is needed to prevent the internal temperature from exceeding allowed temperature; please avoid freezing of the inverter since low temperatures may cause malfunction of some devices due to freezing. Derate according to the chart when temperature exceeds limit.
PERMIT OUTPUT CURRENT(%) Chart 3-2:AC100 Series Inverter Derating Curve When Exceeding Permitted Temperature 40 20 10 0 -10 50 TEMPERATURE( ) 30 Derate according to the chart when altitude exceeds limit. PERMIT OUTPUT CURRENT(%) 100 80 Chart 3-3:AC100 Series Inverter Derating Curve When Exceeding Permitted Altitude 3.4 EMI Protection 0 1000 2000 4000 3000 ALTITUDE(M The designing features of inverter allow it to run with strong electromagnetic interference. Generally, if the quality of the installation is good, the safe and trouble-free operation of the inverter can be guaranteed.
Please implement installation according to the following rules to ensure reliable and effective installation of inverters and avoiding electromagnetic interference. Make sure that all equipments in the cabinet have been connected reliably to the public Y-type earth point or earth bus with thick and short cable. The motor earth should be as close as possible. Please do not connect the motor shell to earth terminal of the inverter or the protective area of control system. Make sure that all devices connected to the inverter are connected to the same earth net or Y-type earth point with thick and short cable.
It would be better for conductors to be flat and multi-core since they have lower impedance at high frequencies. When cutting off the tip, the cable should be as neat as possible to make sure that the unscreened wires are as short as possible. Wiring of control cable should be away from the power supply cable and motor cable as far as possible; separate trunk should be used and a 90є vertical cross must be used when the supply power cable and the motor cable intersect. Make sure that the contactor should be installed in a cabinet with a surge suppressor.
Alternatively, the AC contactor coil is connected with 'R-C' damping circuit, using a coil voltage corresponding varistor; the DC contactor coil is connected with 'flywheel' diodes or pressure thermistor type devices corresponding to the coil voltage, which is particularly important when the contactor frequently operates and when contactor is controlled by the output relay of the inverter. 12 Cable connected to motor should be shielded cable or armored cable. The two barriers are earthed reliably by cable 100 75 50 25 75 50 25 0 0 0