Connectors
▶ When the cable is inserted into the
clamping unit the spring opens auto-
matically.
▶ In order to loosen the conductor or
connect smaller ones with a cross-
section of 0.14 mm² or greater, you
must press the push button of con-
trasting color using a slot screwdriver.
Fig. 10: Loosening the conductor
Fig. 10: Loosening the conductor
7.2 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 suit-
ed for this purpose. Otherwise, damage may occur. SIEB & MEYER cables are not suit-
able for trailing chains!
→ The machine manufacturer must ensure that only cables are used that are suitable
for this purpose.
→ All cables used to connect the devices must be equipped with an appropriate strain
relief according to DIN EN 61800-5-1. This is particularly important, if no shield
connection clamps (SK 8-D, SK14-D Phoenix clamps) are used at the chassis
frame.
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 ca-
bles.
▶ 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 so that the maximum admissible
current is not exceeded at the maximum ambient temperature (see technical data). DIN
EN 60204-1 defines the admissible values for the individual line cross-sections which
must absolutely be taken into account.
30 Drive Amplifier SD4B - Hardware Description
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