Example Application; Electrical Connections - Carel pCO5 Technical Leaflet

pCO5 Medium manages the integrated driver board as an EVD EVO Twin external connected to Field Bus 2. At a 1Tool application
program level, the valve driver must be connected to FBus2. Consequently, any other devices physically connected to the Fbus
port (J26) must have the same communication protocol (CAREL Standard Master or Modbus® Master), the same baud-rate, stop
bits and parity.
It must also be remembered that the address of the internal driver is 198 (default for EVD EVO), so any other devices connected to
J26 must have an address other than 198. External EVD EVO drivers can be connected to FieldBus 1 (optional card) without limits.

Example application:

To ensure effi cient data exchange between the driver EVD EVO and the pCO5, when developing the 1Tool application, if there are
devices connected to the FBus2 port (terminal J26) using the Modbus protocol®, the number of variables exchanged in total over
the serial line should be evaluated.

Electrical connections

• To simplify installation of the pCO5 with integrated EVD EVO, the power supply G-G0 at the base of the pCO5 is connected
internally, using a shielded cable, to the EVD EVO: the driver thus does not need to be powered independently.
• It's recommended to keep the digital and analogue input cables separate from the valve power cable. All the analogue and
digital inputs are earthed to GND, and consequently the application, even temporary, of voltages exceeding ±5 V to these
connections may cause irreversible damage to the driver. As GND is the common earth for all the inputs, this should be replicated
on the terminal block.
+0500040RU - 1.2 - 07.06.2011
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