Electrical Connection

The PROFIBUSâ DP Bus Module CI541-DP is plugged on the I/O Terminal Units TU509 Terminal Units TU509 and TU510 for Bus Modules or TU510 Terminal Units TU509 and TU510 for Bus Modules and accordingly TU517 Terminal Units TU517 and TU518 for Bus Modules or TU518 Terminal Units TU517 and TU518 for Bus Modules. Properly seat the module and press until it locks in place. The Terminal Unit is mounted on a DIN rail or with 2 screws plus the additional accessory for wall mounting (TA526 Wall Mounting Accessory TA526).

The electrical connection of the I/O channels is carried out using the 30 terminals of the I/O Terminal Unit. I/O modules can be replaced without re-wiring the Terminal Units.

Note

Mounting, disassembling and electrical connection for the Terminal Units and the I/O modules are described in detail in S500 System Data System Data AC500 chapters.

The terminals 2.8 and 3.8 as well as 2.9, 3.9 and 4.9 are electrically interconnected within the Terminal Unit and have always the same assignment, independent of the inserted module:

Terminals 2.8 and 3.8: Process supply voltage UP = +24 V DC

Terminal 4.8: Process supply voltage UP3 = +24 V DC

Terminals 2.9, 3.9 and 4.9: Process supply voltage ZP = 0 V

Note

With a separate UP3 power supply, the digital outputs can be switched off externally. With this, an emergency-off functionality can be realised.

Note

Do not connect any voltages externally to digital outputs!

Reason: Externally voltages at an output or several outputs may cause that other outputs are supplied through that voltage instead of voltage UP3 (reverse voltage). This ist not intended usage.

Caution

:strong:Risk \ of malfunction by not intended usage!

If the function cut off of the digital outputs should be used by deactivation of the supply voltage UP3, be sure that no external voltage is conncted at the outputs DO0..DO7.

• Possibilities of Connection
  • Connection on Terminal Units TU509 or TU510
  • Bus Termination
  • Mounting on Terminal Units TU517 or TU518
  • Technical Data Bus Cable
  • Cable Length
• Connection of the digital inputs
• Connection of the digital outputs
• Connection of resistance thermometers in 2-wire configuration to the \ analog inputs
• Connection of resistance thermometers in 3-wire configuration to the \ analog inputs
• Connection of active-type analog sensors (voltage) with electrically \ isolated power supply to the analog inputs
• Connection of active-type analog sensors (current) with electrically \ isolated power supply to the analog inputs
• Connection of active-type analog sensors (voltage) with no electrically \ isolated power supply to the analog inputs
• Connection of passive-type analog sensors (current) to the analog inputs
• Connection of active-type analog sensors (voltage) to differential \ analog inputs
• Use of analog inputs as digital inputs
• Connection of analog output loads (voltage)
• Connection of analog output loads (current)