Goodrive300-19 series open loop vector inverter special for hosit Peripherial options and parts
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The cable trays must have good electrical bonding to each other and to the grounding electrodes.
Aluminum tray systems can be used to improve local equalizing of potential.
A figure of the cable routing is shown below.
Routing distances
C.4.4 Insulation checking
Check the insulation of the motor and motor cable as follows:
1. Check that the motor cable is connected to the motor and disconnected from the drive output
terminals U, V and W.
2. Measure the insulation resistance between each phase conductor and the PE conductor using a
measuring voltage of 500V DC.
For the insulation resistance of other motors, please consult the
manufacturer’s instructions.
Note: Moisture inside the motor casing will reduce the insulation resistance. If moisture is
suspected, dry the motor and repeat the measurement.
C.5 Breaker and electromagnetic contactor
It is necessary to add fuse for the avoidance of overload.
It is appropriate to use a breaker (MCCB) which complies with the inverter power in the 3-phase AC
power and input power and terminals (R, S, T). The capacity of the inverter should be 1.5-2 times of
the rated current.
Due to the inherent operating principle and construction of circuit breakers,
independent of the manufacturer, hot ionized gases may escape from the
breaker enclosure in case of a short-circuit. To ensure safe use, special attention
must be paid to the installation and placement of the breakers. Follow the
manufacturer’s instructions.
It is necessary to install the electromagnetic contactor in the input side to control the switching on and
off safety of the main circuit. It can switch off the input power supply when system fault.
