Lenze ECSEE040 - Connection to the DC Bus (+UG, −UG)

Electrical installation
Power terminals
Connection to the DC bus (+U
G
, −U
G
)
5

42
EDBCSXE040 EN 6.0
5.3.2 Connection to the DC bus (+U
G
, −U
G
)
 Stop!
ƒ The supply of Lenze controllers of the 82xx and 93xx series is not permitted.
ƒ If synchronous motors with a high centrifugal mass are used, a considerable
amount of energy can be fed back into the DC bus. Please take this into
account when dimensioning the brake resistor.
ƒ If the total cable length is > 20 m, install an axis module or a capacitor module
directly at the power supply module.
ƒ Design the ±U
G
cables twisted and as short as possible. Ensure short−circuit−proof
routing!
ƒ Cable length (module « module) > 30 cm: install shielded ±U
G
cables.
Fuses
Fusing the DC−bus interconnection is not required if power supply modules of the ECS
series are used which are fused on the mains side.
Cable cross−sections
Cable
length (modu
le/module)
Wire end ferrule Cable cross−section Tightening torque Stripping length
Up to 20 m
Without wire end
ferrule
6 mm
2
(AWG 10)
1.2 ... 1.5 Nm
(10.6 ... 13.3 lb−in)
5 mm for screw
connection
10 mm for spring
connection
With insulated wire end
ferrule
> 20 m
Without wire end
ferrule
10 mm
2
(AWG 8)
With insulated wire end
ferrule
Use pin−end connectors
for wiring!