185
Dimension drawing of operation panel mounting bracket
The gray area is the hollowed out part, and the middle hollowed out area is 84.6 × 101.5mm. The diameter of
the four corner hollowed out area is 4.34 circle, and M4 screws and nuts are put in to fix the bracket on the
panel.
6-3. Accessories selection guide
6-3-1. Accessories functions
A device for transmitting electrical signals
To prevent electric shock and the short circuit to ground which may cause leakage current fire
(please select leakage circuit breaker for inverter device and with function of suppressing high
harmonic. Rated sensitive current of circuit breaker shall be more than 30mA for one frequency
converter.)
In order to effectively cut off the input power of the inverter in case of system failure, an
electromagnetic contactor is installed on the input side to control the on-off of the main circuit
power supply, so as to ensure safety.
It is suitable for improving the power factor of the input side of the inverter and restraining the
high-order harmonic current.
To suppress the electromagnetic interference of the inverter transmitted to the public power grid
through the input power line, please install it as close to the input terminal side of the inverter as
possible.
It mainly plays the role of overload protection. When the input current of the frequency
converter rises to a certain height and heat, the fuse itself will fuse to cut off the current, which
can protect the safe operation of the frequency converter.
The regenerative energy of motor is consumed by resistor or resistor unit to shorten deceleration
time and avoid over-voltage alarm of frequency converter.
Suppress the interference generated from the output side wiring of the inverter. Please install it
close to the output terminal of frequency converter.
It is used to extend the effective transmission distance of the frequency converter and effectively
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