6 electrical installation, 1 important notes, Electrical installation – Lenze LDECBBF1xxxxxxHx User Manual
Page 27: Important notes
Electrical installation
Important notes
6
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LDEDS−CCU210B EN 4.0
6
Electrical installation
6.1
Important notes
{
Danger!
ƒ
The contacts for the X1 and X2 power connectors can carry dangerous
voltages when the control system is connected to the mains. Therefore
deenergise the control system before working on it.
ƒ
After the connection of a PTC thermistor or a thermal switch (NC contact),
all control terminals are only base−insulated (single isolating distance):
– Protection against accidental contact in case the isolating distance is
defective only is ensured by external measures, e. g. double insulation.
ƒ
The control system must be earthed via X1 to prevent injuries to persons
and breakdown.
)
Note!
ƒ
Supplied plastic covers on the connectors for the control connections and
interfaces:
– Be absolutely sure to keep the plastic covers!
– You must cover unused connections during transport, storage and
operation with the plastic covers to guarantee the IP 54 enclosure.
ƒ
Labels in the area of the control connections:
– Do not remove labels!
– The IP 54 enclosure is only guaranteed with the label.