B&R 8I84T200037.01P-1, User Manual

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Installation guide
74 ACOPOSinverter P84 User's Manual 2.10
1.3.12 Wiring recommendations
1.3.12.1 Power unit
The inverter must be connected to the protective grounding. To comply with the current rules for increased leakage
currents (over 3.5 mA) requirements, use a protective conductor of at least 10 mm² or two protective conductors
with the same conductor cross section as the conductors for the power supply of the power unit.
Danger!
ELECTRICAL SHOCK HAZARD
Connect the device to the protective grounding, using the grounding point provided, as shown in the
following figure. The inverter panel must be properly grounded before power is applied.
Failure to follow this instruction can result in death or injury.
• Check that the resistance of the protective grounding is 1 ohm or less.
•
Connect several inverters with the protective grounding, as shown in the illustration. Do not connect the
cable to the protective ground in loop or in series.
Frequency
inverter
Frequency
inverter
Frequency
inverter
Warning!
IMPROPER WIRING CONNECTIONS
•
The ACOPOSinverter P84 will be damaged if input line voltage is applied to the output terminals
(U/T1,V/T2,W/T3).
•
Check the power connections before energizing the ACOPOSinverter P84.
•
If replacing the inverter, verify that the new inverter's electrical requirements comply with the
wiring instructions in this manual.
Failure to follow these instructions can result in death, serious injury or material damages.
If the installation specifications require upstream protection by means of a residual current device, you must use
a "type A" device for single-phase inverters and a "type B" device for three-phase inverters. Choose a suitable
model incorporating:
• High frequency current filtering
•
Delay, which prevents tripping in the case of possible switching on of charged jamming capacity. The time
delay is not possible for 30 mA devices. In this case, choose devices with immunity against nuisance
tripping.
If the installation includes several frequency inverters, provide one "residual current device" per frequency inverter.