Electrical installation
Power terminals
Connection to the DC bus (+U
G
, −U
G
)
55
EDBCSXS064 EN 4.0
5.2.1
Connection to the DC bus (+U
G
, −U
G
)
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
Destruction of the device
Protective measures:
ƒ
All axis modules in the DC−bus connection should be basically supplied with
a control voltage of 24 V.
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.
Cable cross−section
Cable length
(module/
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!