Precision Air Conditioning
SmartCool
TM
– D
Precision Air Conditioning
55
Installation, Maintenance and Commissioning Manual :6877419 02/2013
Controls
The following section covers a brief outline of the controls within the unit. Further information is available in the full controls
manual upon request.
PCO3 CONTROLLER
The unit is equipped with a PCO3 controller allowing connection to displays, I/O expansion modules, Field boards and all the
relevant temperature and pressure sensors.
1. Power connector [G(+), G0(-)]
2. Yellow power LED and 3 LEDs for the pLAN networks.
3. Additional power supply (max. 200 mA) for the
terminal and 0 to 5 V ratiometric probes;
4. Universal NTC, 0 to 1 V, 0 to 5 V ratiometric, 0 to 10V,
0 to 20 mA, 4 to 20 mA analogue inputs;
5. Passive analogue inputs, NTC, PT1000, ON/OFF
(pCO large only)
6. Analogue outputs, 0/10V (pCO large only)
7. Digital inputs, 24Vac/Vdc (pCO large only)
8. Digital inputs, 230Vac or 24Vac/Vdc (pCO large only)
9. Connector for terminal display (external panel with
direct signals);
10. Connector for all standard pCO series terminals and
for downloading the application software
11. Relay digital outputs (J21 & J22 pCO large only)
12. Connector for connection to I/O expansion modules
(pCO large only)
13. Connector for pLAN local network
14. Cover for inserting the optional supervisor serial
board,
15. Cover for inserting the optional field board
16. Cover for inserting the optional service board.
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