Hanbell RTM-090 - Grounding

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24
Vol. 1.2 © 2020 Hanbell Precise Machinery Co., Ltd.
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2.EMC/EMI Line Filter：To reduce the interference of the power supply, it shall be complied with
EMC/EMI
3. Sine Wave filter：It can effectively reduce stretch length of the shaft by high frequency wave from
inverter during operation.
Note：Following electronic devices are suggested by Hanbell (RTM-090)：
Devices Model
(KEB)Inverter*1-8kHz 30F5E0W-Y03H
(KEB)EMC/EMI Line Filter*2 28E4T60-1001
(KEB)Reactor*2 26Z1B04-1000
(KEB)Sine-Wave-Filter *1 30Z1G04-1005
(KEB)DC Fuse*2 12U420E-3W00
(KEB)COMM Board (Modbus) 00F5060-A000
(KEB)COMM Board (Profinet) 00F5060-L100
Note：(1) For the inverter with carrier frequency up to 8kHz design, Sine Wave Filter is not a
necessary device.
(2) When the carrier frequency of the inverter is between 4kHz to 8kHz, Sine-Wave-Filter is
necessary to be installed.
(3) The reactor shall be installed as illustrate in chart 4.5. There shall be good ventilation
system and the panel shall install the cooling fan.
No Fuse Breaker
No Fuse BreakerNo Fuse Breaker
No Fuse Breaker
(option)
(option)(option)
(option)
EMC/EMI
EMC/EMIEMC/EMI
EMC/EMI
Line Filter
Line FilterLine Filter
Line Filter
(option)
(option)(option)
(option)
Reactor
ReactorReactor
Reactor
(option)
(option)(option)
(option)
Inverter
InverterInverter
Inverter
(option)
(option)(option)
(option)
Sine Wave Filter
Sine Wave FilterSine Wave Filter
Sine Wave Filter
(option)
(option)(option)
(option)
Figure 4.5 Inverter connection
4.4.3 Grounding
Grounding point in electric system normally is a neutral point. Exposed compressor conductor should
not be electrified in normal use. But there is possibility that the compressor is electrified under
malfunction condition. For security purpose, HANBELL strongly ask grounding of below devices
during installation：
1. M12 grounding screw in terminal box should be reliably connected with grounding wire.
2. All of the electronic components.
3. Electronic component, metal sheath of power cable, palpable threading pipe, cable metal trunking,
cable trays should be grounded.
4. Power cable grounding wire should use copper wire or tinned copper braided wire, and the
cross-sectional area should follow below table