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Use only safe extra-low voltages, maximum 24 V DC.
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The power supply unit must be operated only with a power supply with a protective
grounding conductor.
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Establishing and interrupting electrical connections
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The maximum permissible current loads for cables and devices must not be
exceeded.
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Use only connecting cables with safety plugs for electrical connections.
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When laying connecting cables, make sure they are not kinked or pinched.
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Do not lay cables over hot surfaces.
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Make sure that connecting cables are not subjected to continuous tensile loads.
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Devices with a ground connection must always be grounded.
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When replacing fuses, use only specified fuses with the correct current rating and
tripping characteristics.
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The device is not equipped with an integrated fuse unless otherwise specified in the
technical data.
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Pull only the safety plug when disconnecting connecting cables. Never pull the
cable.
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Safe operation of the device will no longer be possible in the event of:
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© Festo Didactic 8176311
Electrical connections may be established only in the absence of voltage.
Electrical connections may be interrupted only in the absence of voltage.
Always compare the current ratings of the device, cable and fuse.
If they are not the same, use a separate upstream fuse in order to provide
appropriate overcurrent protection.
Hot surfaces are indicated by a corresponding warning symbol.
If a ground connection (green and yellow laboratory socket) is available, it must
always be connected to protective ground. The protective grounding must
always be connected first (before connecting voltage), and must always be
disconnected last (after disconnecting voltage).
Some devices have a high leakage current. These devices must be additionally
grounded with a protective grounding conductor.
Visible damage,
Malfunctions,
Inappropriate storage or
incorrect transport.
Switch off the power supply immediately.
Protect the device against inadvertent restart.
IoT gateway – assembly/installation instructions
CAUTION
11