Connection To The Dc Bus (+Ug, −Ug) - Lenze ECS Série Instructions De Montage

4 Electrical installation
Power terminals
Connection to the DC bus (+U
4.2.1 Connection to the DC bus (+U
(
Stop!
No device protection for DC bus voltage surges
In passive axis modules (without 24 V−supply), the charging circuit
can be overloaded through DC bus voltage surges.
Possible consequences:
ƒ
Protective measures:
ƒ
If the total cable length is > 20 m, install an axis module or a capacitor
ƒ
module directly at the power supply module.
Design the ±U
ƒ
short−circuit−proof routing!
Cable length (module « module) > 30 cm: install shielded ±U
ƒ
Cable cross−sections
Cable
length (mo
dule/modul
e)
Up to 20 m
> 20 m
100
, −U
G
, −U
G
Destruction of the device
All axis modules in the DC−bus connection should be basically
supplied with a control voltage of 24 V.
cables twisted and as short as possible. Ensure
G
Wire end ferrule Cable
cross−section
Without wire end
ferrule
With insulated wire
end ferrule
Without wire end
ferrule
With insulated wire
end ferrule
Use pin−end
connectors for
wiring!
)
G
)
G
Tightening torque
2
6 mm
(AWG 10)
1.2 ... 1.5 Nm
(10.6 ... 13.3 lb−in)
2
10 mm
(AWG 8)
l
cables.
G
Stripping length
5 mm for screw
connection
10 mm for spring
connection
EDKCSEX064 DE/EN/FR 4.0