EM500 Open-Loop Vector Control Inverter User Manual 3.2.6.2Never Connect Power Supply Cable to Output Terminals Never connect power supply cable to output terminals. If output terminals are connected to power supply, the internal parts of inverter would be damaged. 3.2.6.3Never Short-Circuit or Ground Output Terminals Never touch output terminals with bare hands or connect output cable to inverter housing, so as to avoid electric shock or short circuit. In addition, do not short-circuit the output cable. 3.2.6.4Never Use an Phase-Shifting Capacitor Never connect a phase-shifting electrolytic capacitor or an LC/RC filter to output circuit so as to prevent inverter from being damaged.
3.2.6.5Never Use an Electromagnetic Switch Do not connect a solenoid switch or an electromagnetic contactor to output circuit. Otherwise, it will trigger the action of overcurrent or overvoltage protection circuit or damage the internal parts of inverter. To set an electromagnetic contactor for the switch of the power supply, stop inverter and motor at first. 3.2.6.6Noise Filter Installation at Output Side interference and radio interference. Connecting a noise filter to the output side of inverter can reduce inductive Inductive interference: Signal line contains noises due to electromagnetic induction, thus resulting in incorrect actions of control devices. Radio interference:
High-frequency electromagnetic waves transmitted by inverter and cable will cause radio devices nearby to make noises while receiving signal. Noise filter installation is installed on the output side is shown in Figure 3–8. 43