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Kaco blueplanet 3.0 TL3 Bedienungsanleitung Seite 21

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↻ NOTE: Before proceeding with the isolation ensure that you do not cut any individual wires.
1 Insert isolated wires with twisted ends carefully up to the connection.
NOTE: Wire ends must be visible in the spring.
2 Close the spring so that the spring latches.
3 Slide insert into sleeve.
4 Secure and tighten the cover on the cable fitting [ W_15/
5 Join insert with contact plug.
6 Check latch by lightly pulling on the coupling.
» Make the electrical connections.
NOTE
The permissible bending radius of at least 4x the cable diameter should be observed during installation.
Excessive bending force may negatively impact the protection rating.
All mechanical loads must be absorbed in front of the plug connection.
Rigid adaptations are not permitted on DC plug connectors.
7.5.2
Checking the PV generator for a ground fault
DANGER
Risk of fatal injury due to electric shock!
Severe injury or death will result if the live connections are touched. When there is sunlight present on the
PV generator, there is DC voltage on the open ends of the DC cables.
Only touch the PV generator cables on the insulation. Do not touch the exposed ends of the cables.
Avoid short circuits.
Do not connect any strings with a ground fault to the device.
NOTE
The threshold value from which the insulation monitor reports an error can be set in the "Parameters"
menu.
Ensure that there is no ground fault
1 Measure the DC voltage between the protective earth (PE) and the positive cable of the PV generator.
2 Measure the DC voltage between the protective earth (PE) and the negative cable of the PV generator.
ð If stable voltages can be measured, there is a ground fault in the DC generator or its wiring. The ratio between
the measured voltages gives an indication as to the location of this fault.
3 Rectify any faults before taking further measurements.
4 Measure the electrical resistance between the protective earth (PE) and the positive cable of the PV generator.
5 Measure the electrical resistance between the protective earth (PE) and the negative cable of the PV generator.
ð In addition, ensure that the PV generator has a total insulation resistance of more than 2.0 MOhm, since the
device will not feed in if the insulation resistance is too low.
6 Rectify any faults before connecting the DC generator.
KACO blueplanet 3.0 TL3 KACO blueplanet 4.0 TL3 KACO blueplanet 5.0 TL3 KACO blueplanet 6.5 TL3 KACO
blueplanet 7.5 TL3 KACO blueplanet 8.6 TL3 KACO blueplanet 9.0 TL3 KACO blueplanet 10.0 TL3
1.8 Nm]
Page 21

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