Siemens SINAMICS G120P, Руководство по эксплуатации

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Electrical installation
4.2 Checklist for electrical installation
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
53
Item Activity Available Completed
Power connections
1 The line-side and motor-side power cables must be dimensioned and routed in
accordance with the ambient and routing conditions. The maximum permissible
cable lengths between the inverter and motor must be observed depending on the
type of cable used (see "Electrical installation / Power connections / Connection
cross-sections and cable lengths").
The PE ground at the motor must be fed back directly to the cabinet unit.
The cables must be properly connected to the cabinet unit terminals and tightened
with a torque of 50 Nm. The cables must also be connected to the motor and the
low-voltage switchgear with the required torques.
2 The cables between the low-voltage switchgear and the cabinet unit must be pro-
tected with line fuses to provide adequate conductor protection (DIN VDE 100,
Part 430 and/or IEC 60364-4-43) With type C, combined fuses must be used for
conductor and semi-conductor protection (EN 60269-4). See "Technical data" for the
appropriate fuses.
3 For strain relief, the cables must be clamped on the cable propping bar (C-type
mounting bar).
4 When EMC-shielded cables are used, screwed glands that connect the shield to
ground with the greatest possible surface area must be provided on the motor ter-
minal box. On the cabinet, the cables must be grounded with the clips supplied with
the EMC shield bus with the greatest possible surface area. (The shielding busbar is
included for option L00) (see "Electrical installation/EMC-conform design".)
5 The cable shields must be properly applied and the cabinet properly grounded at the
points designated for that purpose (see "Electrical installation/EMC-compliant instal-
lation").
6 If the unit is operated on a non-grounded supply (IT system), the connection clip for
the basic interference suppression module in the Power Module must be opened
(see "Electrical installation / power connections / opening the connection clip for the
basic interference suppression module for operation on a non-grounded supply (IT
system)").
7 The type plate can be used to ascertain the date of manufacture. If the period from
the date of manufacture to initial commissioning or the cabinet unit downtime is less
than 2 years, the DC-link capacitors do not have to be formed. If the downtime peri-
od is longer than 2 years, they must be reformed in accordance with the description
found in "Maintenance and servicing/forming the DC-link capacitors."
8 With an external auxiliary supply, the cable for the 230 VAC supply must be con-
nected to terminal –X40, while the cable for the 24 VDC supply must be connected
to terminal –X9 (see "Electrical installation / power connections / external supply of
the auxiliary supply from a secure line").
9 Option K74
Auxiliary power
supply,
230 VAC
The voltage of the auxiliary power supply (-T10) must be adapted
to the supply voltage of the cabinet unit (see "Electrical installa-
tion / additional connections / auxiliary power supply, 230 VAC
(option K74)").