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Connection diagram
If the converter unit has parallel modules, each module must have its own output
cables. The cables must also be identical (cable type, cross-sectional area, and length
must be the same).
This diagram shows the connections between the DC/DC converter unit and an energy
storage.
3-conductor shielded cable
X33.1
1 2
ES- ES+
PE - +
1
2
A
B
3
4
4-conductor shielded cable
X33.1
1 2
ES- ES+
PE - +
1
2
A
B
3
4
DC/DC converter unitA
Energy storageB
Shielded 3-conductor or 4-conductor cable and 360° grounding of the cable shield at the cable
entry. If you use parallel cables, make sure they are identical (type, cross-sectional area, length
are the same).
If you use a 4-conductor cable, a separate PE conductor or cable is required if the shield conduct-
ivity does not meet the requirements of IEC 61439-1.
1
Disconnecting device2
Connection to load disconnected indicator [P13.x] on the cabinet door3
Protective circuit breaker4
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Connection procedure of the energy storage cables
This section describes the power cable connecting procedure for a bottom cable entry
with the standard cable entry plate. The standard cable entry plate has conductive
sleeves for 360° grounding of the cable shields. If the drive or unit has another type
of cable entry plate, such as a Roxtec cable entry plate (option +H394), or cable gland
Electrical installation 53