Connection At Dc Voltage Supply - KEB COMBIVERT G6 series Installation Manual

3.2.1.5 Connection at DC voltage supply

Picture 3.2.1.5
1
2
3 KEB COMBIVERT
3.2.1.6 Terminal strip X1B
Picture 3.2.1.5
X1B
3.2.1.7 Conductor cross-section at DC voltage supply
Size
13
14
15
3.2.2 Connection of the motor
3.2.2.1 Selection of the motor cable
The correct cabling as well as the motor cable play an important part in case of low power
in connection with long motor line lengths. Ferrite cores and low-capacitance cable (phase/
phase<65 pF/m, phase/screen < 120 pF/m) at the output have the following effects:
• longer motor line lengths
• less abrasion of the motor gearbox by leakage currents
• better EMC properties
3.2.2.2 Motor line length at operation with DC voltage
The maximum motor line length at DC operation is basically dependent on the capacity of the
motor cable. The internal filter is not active at DC operation. External measures must be taken
here, if necessary. The following data apply for operation under nominal rating conditions.
Connection at DC voltage supply
+U
-U
DC voltage
Fuses
Description of the terminal strip X1B
Name Function
++, – – DC connection
PE,
Recommended minimum cross section at rated power.
Connection of the Power Unit
T1 T2
++
- -
PE
420...746 V DC
Pay attention to the permissible voltage range !
Connection for
shielding/
earthing
2 x 4 mm²
2 x 6 mm²
U
V
W
PE
Type aR
G6-C
Cross-section Tightening
0.2-16 mm²
AWG 26-6 20.5 lb-inch
Screw M4 for
ring thimble
torque
2.3 Nm
1,3 Nm
11 lb inch
GB - 17