User's Manual

Safety Chapter
DLT-V72 Series User Manual V2.74
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2.6. Information on safe electrical installation
Danger of electric shock
1. Do not put the DLT-V72 into operation if it is showing damage.
2. Do not open or modify the DLT-V72.
3. Only connect or disconnect electrical connections when the device is in a
de-energized state.
4. Use only original Advantech power supply cables; these meet the specific
requirements for low-temperature flexibility, UV resistance, oil resistance,
etc.
Installing the disconnecting device
The DLT-V72 is not equipped with disconnecting devices that are accessible from the
outside; it does not have switches.
1. To allow the device to be quickly disconnected from the power supply in
emergency situations, install an easily accessible disconnecting device
close to the device and ensure that the disconnecting device isolates all
supply lines.
Fuses
2. Only connect DLT-V72 devices to Safety Extra Low Voltage (SELV)
circuits.
3. The DC+ connecting cable must be protected by a fuse (30 AT max.).
4. The ignition connecting cable must be protected by a fuse of the following
type:
5x20 mm T 125 mA L / 250 V, for example, a Wickmann 195-125 mA / 250
V.
Power supply unit fuse blows repeatedly
If the fuse of the integrated power supply unit blows again immediately after replacement,
proceed as follows:
1. Check the electrical installation.
2. If it’s excluded that a faulty installation causes the problem: Send in the
DLT-V72 immediately for repair.