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Technical description
8. 7. 3 Troubleshooting
Error
Possible cause
The connected end devices
Equipment cart not turned on
do not work
End device not switched on
End device power line not connected to
the central power supply
Equipment cart power line not connected
No output voltage at the network
distributor
No output voltage at the isolation
transformer
Earth leakage monitor does
Equipment cart not turned on
not work
Earth leakage monitor not connected to the
isolation transformer
Isolation transformer not connected to the
mains
Safety features active (fine-wire fuse,
automatic cutout of the supply circuit,
overcurrent safety switch in the output
circuit)
Description technique
Remedy
Switch on the central mains switch on the equipment cart.
Switch on the power switch on the end device.
Check the end device power supply and, if necessary, connect.
Check the equipment cart power supply and, if necessary, connect.
1. Check the interface connection of the network distributor to the central
mains switch, disconnect the network distributor from the network and
remove all end devices from the output (see chapter 8.7.1 on page 37).
2. Connect the network distributor to another power supply.
3. Check the automatic cutout of the supply circuit.
4. Notify Technical Support.
1. Check the interface connection of the isolation transformer to the central
mains switch, disconnect the isolation transformer from the network and
remove all end devices from the output of the isolation transformer (see
chapter 8.7.1 on page 37). Check the fine-wire fuses at the input module
of the isolation transformer.
2. Connect the isolation transformer to another power supply.
3. Check the automatic cutout of the supply circuit.
4. Check the overcurrent safety switch in the output circuit of the isolation
transformer.
5. Notify Technical Support.
Switch on the central mains switch on the equipment cart.
Connect the earth leakage monitor with the interface line to the isolation
transformer (see chapter 8.7.2 on page 64).
Connect the isolation transformer to the mains switch of the equipment cart
(see chapter 8.7.1 on page 37).
1. Disconnect the isolation transformer from the network and remove all end
devices from the output of the isolation transformer (see chapter 8.7.1 on
page 37). Check the fine-wire fuses at the input module of the isolation
transformer.
2. Check the automatic cutout of the supply circuit.
3. Check the overcurrent safety switch in the output circuit of the isolation
transformer.
4. Notify Technical Support.
Descripciones técnicas
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