Decommissioning

CAUTION

Risk of electric shock

Disconnecting the transmitter box during a thunderstorm can lead to electric shock.

  • Never disconnect the cables from the transmitter box during thunderstorms.

Notice

Hardware damage due to power supply

A connected power supply can cause damage to the transmitter box during disassembly.

  • Disconnect the power supply from the device before starting to disassemble it.

As part of the decommissioning of the transmitter box, you must first disconnect the power supply and cables. You can then remove the transmitter box from the control cabinet.

Disconnecting the power supply and cables

Follow the steps below to disconnect the power supply and cables from the transmitter box:

1. Disconnect the transmitter box from your external 24 V power supply.
2. Unscrew the 3-pin voltage connector and pull it out of the voltage socket.
3. Remove the power supply cable if the 3-pin connector is to remain with the transmitter box.
4. Make a note of the wiring of all data transmission cables if you want to restore the cabling with another device.
5. Cut the cable ties on the strain relief on the optional C9900-Z484 strain relief, if present.
6. Disconnect all data transfer cables from the transmitter box.
You have disconnected the cables and power supply.

DIN rail disassembly

First, remove the optional strain relief, if present, from the DIN rail by following the steps shown in Figure 11:

1. Loosen and remove the two Torx TX20 screws (section A). Make sure that the strain relief is secured against falling down.
2. Unhook the upper hook of the bracket from the DIN rail (section B).
3. Unhook the lower hook of the bracket from the DIN rail (section C).
You have removed the strain relief.
Decommissioning 1:
Removing strain relief

To remove the transmitter box from the DIN rail, follow the steps below, shown in Figure 12:

1. Press the transmitter box down on the DIN rail (section A).
The lower hook of the transmitter box is unhooked from the DIN rail.
2. Tilt the lower, unhooked part of the transmitter box forward (section B).
3. Unhook the upper hook of the transmitter box from the DIN rail (section C).
You have removed the transmitter box.
Decommissioning 2:
Removing transmitter box