Technibel PHRIE Series - Page 115

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5.2.4 A2 BOARD CHECKING
Power supply :
-main power supply 230Vac on terminals “U/N”
-red LED “Power” lighted
-fuses
A2 board generates 3 control power supplies:
• Supply 24Vdc :
Can be checked on connector “E2P” (with no connection) – terminals 1/3: 20 <U< 26Vdc
• Supply 12Vdc :
Can be checked on terminals block “ON/OFF” (not wired) – terminals “C/0”: 10 <U< 16Vdc
• Supply 5Vdc regulated:
on connector “TW2” (not wired): 4.5 <U< 5.5Vdc
Communication lines:
-connector “SC” (system communication line) : 10 <U< 15Vdc
yellow LED lighted (glittering when communication)
-connector “RC” (Maintenance display) : terminals 1/3: 16 <U< 24Vdc
yellow LED lighted
-connector “OC” (frigorific circuit power board control) : not connected U = 0.5Vdc