EM500 Open-Loop Vector Control Inverter User Manual
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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
Connecting a noise filter to the output side of inverter can reduce inductive
interference and radio interference.
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.
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