Best E5 Series User Manual page 26

Chapter 2 Installation and Connection
2.4.8 Instructions of Peripheral Devices
Device
Power Input three-phase AC power supply should be in the range as specified in
supply this manual
Purpose: disconnect power supply and protect the equipments in case of
abnormal over current occurs
Circuit Type selection: breaking current of circuit breaker is defined to be 1.5~2
breaker times the rated current of the drive
Breaking time characteristic of circuit breaker should be selected based on
overload protection time characteristic of the drive
Purpose: since the drive outputs PWM HF chopping voltage, HF leakage
RCD current is inevitable
Type selection: type B dedicated RCD is recommended
For safety's sake, do not frequently close and break the contactor since this
may bring about equipment faults
Contactor
Do not control the start & stop of the drive directly through switch on and off
the contactor since this will result in a reduction on the product life
Improve power factor
Reduce the impact of imbalanced three-phase input AC power supply on
Input AC
the system
reactor or
Suppress higher harmonics and reduce the conducted and radiated
DC choke
interference to peripheral devices
Restrict the impact of impulse current on rectifier bridges
Reduce conducted interference from power supply to the drive, improve the
immunity of the drive from noise
Input filter
Reduce conducted and radiated interference of the drive to peripheral
devices
Brake unit Purpose: consume motor feedback energy to attain quick brake
and Type selection: Contact GTAKE technical personnel for type selection of
braking brake unit. Refer to type selection of braking resistor in Table 1.3 Type
resistor Selection of Peripheral Devices.
Reduce conducted and radiated interference of the drive to peripheral
Output filter
devices
Avoid the motor insulation damage result from harmonic voltage
Output AC Reduce frequent protection from the drive caused by leakage current
reactor In case the cable connecting drive and motor is over 100 meters, output AC
reactor recommended
Motor Should match the drive
Instructions
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E5 User Manual