NORD Drivesystems BU0700 - Manual (Page 19)

2 Assembly and installation
BU 0700 GB-1411 Subject to technical alterations 19
2.10.4 Motor cable (U/V/W/PE)
The motor cable must have a maximum length of 150m (Please note also Chapter 8.4 EMC limit value classes). If a shielded
motor cable is used, or the metallic cable duct is well earthed, the maximum length of 50m should not be exceeded. For longer
cable lengths , additional output chokes must be used.
For multiple motor use, the total cable length consists of the sum of the individual cable lengths. If the sum of the cable lengths
is too high, one output choke should be used per motor/cable.
Connection terminals cross-section:
SK 700E-151-340-A ... SK 700E-751-340-A VDE 4mm² (0 .5 … 0.6Nm)
UL/cUL (AWG 24-10)
SK 700E-112-340-A ... SK 700E-152-340-A VDE 10mm² (1. 2 … 1.5Nm)
UL/cUL (AWG 22-8)
SK 700E-182-340-A ... SK 700E-222-340-A VDE 25mm² (2. 4 … 4.0Nm)
UL/cUL (AWG 16-4)
SK 700E-302-340-O ... SK 700E-372-340-O VDE 35mm² (3. 2 … 3.7Nm)
(PE terminals = 16mm
2
) UL/cUL (AWG 2)
SK 700E-452-340-O ... SK 700E-752-340-O VDE 25-50mm² (6 … 8Nm)
(75KW: no PE terminal, screw terminal in the support plate ) UL/cUL (AWG 4-0)
SK 700E-902-340-O VDE 95mm² (15 … 20Nm)
(No PE terminals, screw terminal in the support plate) UL/cUL (AWG 000)
SK 700E-113-340-O ... SK 700E-163-340-O VDE 50-150mm² (25 … 30Nm)
(PE terminals = 35-95mm
2
) UL/cUL (AWG 0-300 MCM)
2.10.5 Brake chopper connection up to 22kW (+B/-B)
The connection for the frequency inverter  brake resistor should be shielded and as short as possible.
Note: Possible strong heating of the brake resistor should be taken into account.
Connection terminals cross-section:
SK 700E-151-340-A ... SK 700E-751-340-A VDE 4mm² (0.5 … 0.6Nm)
UL/cUL (AWG 24-10)
SK 700E-112-340-A ... SK 700E-152-340-A VDE 10mm² (1.2 … 1.5Nm)
UL/cUL (AWG 22-8)
SK 700E-182-340-A ... SK 700E-222-340-A VDE 25mm² (2.4 … 4.0Nm)
UL/cUL (AWG 16-4)
2.10.6 Brake resistor connection from 30kW (BR+ZW)
The connection for the frequency inverter  brake resistor should be shielded and as short as possible.
Note: Possible strong heating of the brake resistor should be taken into account.
Connection terminals cross-section:
SK 700E-302-340-O ... SK 700E-372-340-O VDE 16mm² (3.2 … 3.7Nm)
(add. PE terminals = 16mm
2
) UL/cUL (AWG 6)
SK 700E-452-340-O ... SK 700E-752-340-O VDE 0.75-35mm² (3.2 … 3.7Nm)
(add. PE terminals = 0.75-35mm
2
) UL/cUL (AWG 18-2)
SK 700E-752-340-O ... SK 700E-902-340-O VDE 50mm² (6 … 8Nm)
(No PE terminals, screw terminal in the support plate) UL/cUL (AWG 4-0)
SK 700E-113-340-O ... SK 700E-163-340-O VDE 95mm² (15 … 20Nm)
(add. PE terminals = 95mm
2
) UL/cUL (AWG 000)
Note: Only one PE terminal is located near the mains connection in the 90kW
device. Further PE connections can be implemented on the device housing.