YASKAWA GA80U4720ABM, Руководство пользователя

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Electrical
Installation
3
3.3 Main Circuit Wiring
YASKAWA SIEPC71061737B GA800 Drive Technical Reference 83
WARNING! Electrical Shock Hazard. Make sure that the protective ground wire conforms to technical standards and local safety
regulations. The IEC/EN 61800-5-1:2007 standard specifies that you must wire the power supply to automatically de-energize when
the protective ground wire disconnects. You can also connect a protective ground wire that has a minimum cross-sectional area of
10 mm
2 (copper wire) or 16 mm 2 (aluminum wire). If you do not obey the standards and regulations, it can cause serious injury or
death. The leakage current of the drive will be more than 3.5 mA in drive models 4414 to 4720.
WARNING! Electrical Shock Hazard. Use a ground wire that complies with technical standards on electrical equipment and use the
minimum length of ground wire. Incorrect equipment grounding can cause serious injury or death from dangerous electrical
potentials on the equipment chassis.
WARNING! Electrical Shock Hazard.
Correctly ground the ground terminals. Obey federal and local electrical wiring codes for correct grounding methods. The maximum
grounding resistance is
• 200 V class: ground to 100
Ω
or less
• 400 V class: ground to 10 Ω or less
If you touch electrical equipment that is not grounded, it can cause serious injury or death.
Note:
• Do not use the drive grounding wire for any other purposes than grounding the drive. Do not share the ground wire with other devices such
as welding machines or large-current electrical equipment. Incorrect equipment grounding can cause incorrect operation of drives and
equipment.
• To connect multiple drives to the same grounding circuit, follow the instructions in the instruction manual. Incorrect equipment grounding
can cause incorrect operation of drives and equipment.
Refer to Figure 3.16 when installing multiple drives. Do not loop the grounding wire.
Figure 3.16 Wiring More than One Drive
■
Wiring the Main Circuit Terminal Block
WARNING! Electrical Shock Hazard. Before you wire the main circuit terminals, make sure that MCCB and MC are OFF. If you
touch electrical equipment when MCCB and MC are ON, it can cause serious injury or death.
■
Main Circuit Configuration
The figures in this section show the different schematics of the drive main circuit The connections change when the
drive capacity changes. The DC power supply for the main circuit also supplies power to the control circuit.
WARNING! Fire Hazard. Do not connect a braking resistor to ter1 or -. Use terminals B1 and B2 for the braking resistor
connections. If you connect a braking resistor to the incorrect terminals, it can cause damage to the drive and braking circuit and
serious injury or death.
NOTICE: Do not use the negative DC bus terminal “-” as a ground terminal. This terminal is at high DC voltage potential. Incorrect
wiring connections can cause damage to the drive.
Model Figure
2004 to 2082, 4002 to 4044
Figure 3.17
2110 to 2138, 4060 to 4168
Figure 3.18
2169 to 2415, 4208 to 4414
Figure 3.19
4477 - 4720
Figure 3.20