Carel srl: pCO Stage Controller
page 22
MEANING OF THE INPUTS AND OUTPUTS
Power supply
C
ONNECTOR
S
IGNAL
D
ESCRIPTION
J17 - 1
G
Power 24 V
10 W or 24V~50/60 Hz 15 VA (see note on
page 25)
J17 - 2
G0
Power supply reference
J1 - 2
+24
Power supply for external active probes 24 V
(max. power that can
be supplied: 80mA
Connection with terminal unit
C
ONNECTOR
S
IGNAL
D
ESCRIPTION
J19
Terminal unit
6-way telephone cable connection with terminal unit
Analog inputs
C
ONNECTOR
S
IGNAL
D
ESCRIPTION
J2 - 1
B1
Probe 1 (only when the probe is of the NTC passive type)
J2 - 2
AVSS
Common analog inputs
J2 - 3
B2
Probe 2 (only when the probe is of the NTC passive type)
J2 - 4
B3
Potentiometer for setpoint variation / Ambient air temperature (optional)
J2 - 5
AVSS
Common analog inputs
J2 - 6
B4
Remote on/off (optional)
J2 - 7
B5
Probe 1 (only when the probe is of the 0-1 volt active type or is a 4-20
mA pressure probe - check pin-strip J14)
J2 - 8
AVSS
Common analog inputs
J2 - 9
B6
Probe 2 (only when the probe is of the active type 0-1 volts or is a
pressure probe 4-20 mA - check pin-strip J15)
Digital inputs
C
ONNECTOR
S
IGNAL
D
ESCRIPTION
J4 - 1
ID1
Device 1 lock /Pressure switch of high pressure / antifreeze
J4 - 2
ID2
Device 2 lock / Pressure switch of high pressure / antifreeze
J4 - 3
ID3
Device 3 lock / Pressure switch of high pressure / antifreeze
J4 - 4
ID4
Device 4 lock / Pressure switch of high pressure / antifreeze
J4 - 5
ID5
Device 5 lock / Pressure switch of high pressure / antifreeze
J4 - 6
IDCM1
Digital common inputs ID1-ID5
J3 - 1
ID6
Device 6 lock / Pressure switch of high pressure / antifreeze
J3 - 2
ID7
Device 7 lock / Pressure switch of high pressure / antifreeze
J3 - 3
ID8
Device 8 lock / Pressure switch of high pressure / antifreeze
J3 - 4
ID9
Device 9 lock / Pressure switch of high pressure / antifreeze
J3 - 5
ID10
Device 10 lock / Pressure switch of high pressure / antifreeze
J3 - 6
IDCM2
Digital common inputs ID6-ID10
J21 -1
ID11-230Vac
Common digital input ID11 – 230 V~ or 24 V~
J21 - 2
ID11-24Vac
Fan inverter lock – 24 V~ digital input
J21 - 3
ID11 - Com
Fan inverter lock – 230 V~ digital input
J21 - 4
Not connected
J21 - 5
ID12 - Com
Common digital input ID12 – 230 V~ or 24 V~
J21 - 6
ID12-24 Vac
Low pressure switch/flow switch – 24 V~ digital input
J21 - 7
ID12-230 Vac
Low pressure switch / flow switch – 230 V~ digital input