Proline Prosonic Flow 93 PROFIBUS DP/PA
Troubleshooting
Hauser
147
9.6.3
Installing and removing electronics boards
#
Warning!
• Risk of electric shock. Exposed components carry dangerous voltages. Make sure that the power
supply is switched off before you remove the cover of the electronics compartment.
• Risk of damaging electronic components (ESD protection). Static electricity can damage electronic
components or impair their operability. Use a workplace with a grounded working surface,
purposely built for electrostatically sensitive devices.
• If you cannot guarantee that the dielectric strength of the device is maintained in the following
steps, then an appropriate inspection must be carried out in accordance with the manufacturer’s
specifications.
"
Caution!
Use only original Hauser replacement parts.
Installing and removing printed circuit boards
1.
Loosen the screws and open the housing cover (1).
2.
Loosen the screws securing the electronics module (2). Then push up electronics module and
pull it as far as possible out of the wall-mount housing.
3.
Disconnect the following cable connectors from amplifier board (7):
– Signal cable connector (7.1)
– Plug of exciting current cable (7.2):
Gently disconnect the plug, i.e. without moving it back and forward.
– Ribbon cable plug (3) of the display module
4.
Remove the cover (4) from the electronics compartment by loosening the screws.
5.
Remove the boards (6, 7, 8):
Insert a thin pin into the hole provided (5) for the purpose and pull the board clear of its holder.
6.
Remove submodules (8.2) (optional):
No tools are required for removing the submodules (outputs) from the I/O board. Installation
is also a no-tools operation.
"
Caution!
Only certain combinations of submodules on the I/O board are permissible
The individual slots are marked and correspond to certain terminals in the connection
compartment of the transmitter:
"INPUT / OUTPUT 3" slot = terminals 22/23
"INPUT / OUTPUT 4" slot = terminals 20/21
7.
Installation is the reverse of the removal procedure.
Содержание Proline Prosonic Flow 93
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