Installation
17–7
1070 072 145-102 (01.07) GB
17.2.7
Dimensioning Power Cables
Maximum current levels must be considered when determining the dimen-
sions of power cables (refer to VDE 0100-523). The voltage applied directly
to the device must be between 20.4 and 28.8 V.
The voltage must be maintained also in the event of the following:
D
Mains voltage fluctuations, e.g., caused by variations of power grid loads.
D
The variety of possible load statuses, such as short-circuit, normal load,
Lamp load or idle, for example.
The maximum cable cross-section for the power supply of the CL200 is
1.5 mm
2
.
Voltage dips
To maintain uninterrupted operation, the CL200 is capable of bridging vol-
tage dips lasting up to 10 ms.
No compensation is however possible in the case of voltage dips in the
power supply of the outputs. This may cause contactors and other actuators
to drop off in the case of voltage drops.
The occurrence of input data falsified through voltage drops is prevented via
filters on the input modules. The input response time is 3 ms. If longer power
interruptions occur, suitable measures must be introduced.
17.2.8
Master Switch
A master switch conforming to VDE 0100 must be provided for the CL200, as
well as for sensors and actuators.
17.2.9
Fuses
The purpose of fuses and circuit breakers is to protect the cables in a power
network. The power supply cables of the CL200 must be protected. When
providing fuse protection, the power supplies for sensors and actuators
should be protected by separate fuses. In the event that power cables are
shorter than 3 metres and are installed in a manner that is short-circuit proof,
fuse protection may be waived.
A variety of criteria must be considered when selecting fuses. Paramount
among them is the rated current of the circuit to be protected (refer to VDE
0100-430). The rated current also determines cable cross-section (refer to
VDE 0100-523).
Additional criteria for the selection of protective elements are listed below.
D
Rated voltage
D
Temperature
D
Internal resistance of fuses
D
Inrush currents
D
Cable lengths
Содержание CL200
Страница 3: ...Antriebs und Steuerungstechnik CL200 Manual CL200 102 Edition ...
Страница 8: ...Contents VIII 1070 072 145 102 01 07 GB Notes ...
Страница 24: ...System Introduction 2 8 1070 072 145 102 01 07 GB Notes ...
Страница 38: ...Module Racks 3 14 1070 072 145 102 01 07 GB Notes ...
Страница 82: ...E 24 V Digital Input Modules 6 6 1070 072 145 102 01 07 GB Notes ...
Страница 104: ...Digital Input Output Modules 8 10 1070 072 145 102 01 07 GB Notes ...
Страница 110: ...DP EA4 Peripheral Bus Station Module 9 6 1070 072 145 102 01 07 GB Notizen ...
Страница 114: ...AG S Expansion Module 10 4 1070 072 145 102 01 07 GB Notizen ...
Страница 122: ...R200 R200P COM2 E Communication Modules 11 8 1070 072 145 102 01 07 GB Notizen ...
Страница 158: ...Appendix A 4 1070 072 145 102 01 07 GB Notes ...