Installation
09/01 AWB8230-1412GB
30
Power terminal connection Laying the cables
Lay the cables for the power section separately from the signal
cables and control cables.
The motor cables which are to be connected must be screened.
The maximum cable length must not exceed 50 m. With larger
cable lengths, a motor choke is required for dv/dt-limitation
If the cable leading from the frequency inverter to motor is longer
than approx. 10 m, it is possible that the available thermal relays
(bimetallic relays) will malfunction due to high frequency harmo-
nics. Install a motor filter on the output of the frequency inverter
in this case.
Tightening torques and conductor cross-sections
X Screw on the cables tightly according to Table 3.
Table 3: Tightening torque's and conductor cross-sections for the power terminals
Warning!
The supply voltage must suit the frequency inverter which
is selected (a Section ”Appendix”, Page 107):
• DF5-322: Single-phase or three-phase: 230 V
(180 to 264 V g 0%)
• DF5-340: three-phase 400 V (342 to 506 V g 0%)
Warning!
The mains voltage may not be connected for any reason
to the output terminals U, V and W. Danger of electrical
shock or fire.
Warning!
Each phase of the supply voltage for the frequency
inverter must be protected by a fuse (danger of fire).
Warning!
Ensure that all power cables are correctly tightened on the
power section.
Warning!
The frequency inverter must be earthed. Danger of
electrical shock or fire.
Warning!
Do not connect cables to the terminals in the power
section which are not designated. These terminals are
partially without function (dangerous voltages) or are
reserved for DF5 internal purposes.
Warning!
Tighten the screws on the terminals correctly
(a Table 3), so that they do not come loose
unintentionally.
L, L1, L2, L3, N
L+, DC+, DC–
U, V, W, PE
DF5- mm
2
AWG mm mm Nm
322-018
322-037
1.5 16 6 to 8 7.1 M3.5
M4 (PE)
0.8 to 0.9 1
322-055
340-037
340-075
340-1K5
340-2K2
1.5 16 8 to 10 9 M4 1.2 to 1.3 1
322-075
322-1K1
340-3K0
340-4K0
2.5 14 8 to 10 9 M4 1.2 to 1.3 1
322-1K5
322-2K2
340-5K5
340-7K5
4 12 12 to 14 13 M5 2 to 2.2 2
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