11 General Information Regarding the
Wiring
11.1 Cable Requirements
The cables described in this chapter meet the SIEB & MEYER requirements for cables
and connectors in order to ensure their proper function.
NOTICE
Risk of cable damage due to mechanical loads
Cables that are exposed to mechanical loads, e.g. trailing chains or similar, must
be suited for this purpose. Otherwise, damage may occur. SIEB & MEYER cables
are not suitable for trailing chains!
The machine manufacturer must ensure that only cables are used that are suitable
for this purpose.
In general, the following principles apply for the cables (see also documentation “Unit
Assembly Complying EMC”)
▶ Motor and signal cables must not be wired in the same cable protection hose!
▶ Motor cables must have a wire-meshed shield. They must be wired separately
from signal cables.
▶ Signal lines must have a wire-meshed shield. Differential signals should only be
transmitted with twisted-pair lines. They must be wired separately from motor
cables.
▶ The cable shields must be connected to the connector shell inside of the connec‐
tors. In the switch cabinet they should be connected to a ground bus.
▶ Cable shields not ending in a connector inside of the switch cabinet such as motor
cables must be connected to the ground bus.
▶ Both ends of the shield of shielded cables must generally be connected to the
shell.
The line cross-sections should be selected carefully: The maximum admissible current
should not be exceeded at the maximum ambient temperature (see technical data).
DIN VDE 0298-4 defines the admissible values for the individual line cross-sections
which must absolutely be taken into account.
The current carrying capacity in connection with the line cross-section of copper
conductors isolated with PVC or cables according to DIN VDE 0298-4 for different
types of wiring are indicated in the following table: All values are related to an ambient
temperature of +40 °C and an operating temperature at the conductor of 70 °C.
Conductor cross-
section A [mm²]
Admissible current I [A]
B2 wiring
(1)
E wiring (3 cable leads)
(2)
F wiring (3 cable leads)
(3)
0.75 7.6 10.4 –
1.00 9.6 12.4 –
1.50 12.2 16 –
2.50 16.5 22 –
4 23 30 –
W
General Information Regarding the Wiring
Drive Amplifier SD2B / SD2B plus - Hardware Description 67
11
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