Carrier 48AJ Operating And Service Manual page 111

Table 109 — Staged Gas Control Board (SCB) Inputs and Outputs
POINT
POINT DESCRIPTION
NAME
INPUTS
LAT1SGAS Leaving air temperature 1
LAT2SGAS Leaving air temperature 2
LAT3SGAS Leaving air temperature 3
OUTPUTS
HS3 Heat Stage 3
HS4 Heat Stage 4
HS5 Heat Stage 5
HS6 Heat Stage 6
CEBD430351
J1 J2
J4 J3
J5
RED LED - STATUS
I/O POINT PLUG AND PIN
NAME REFERENCE
AN1 J5, 1-3
AN2 J5, 4-6
AN3 J5, 7-9
AN4 J5, 10-12
AN5 J5, 13-15
AN6 J6, 1-3
AN7 J6, 4-6
AN8 J6, 7-9
AN9 J7, 1-2
AN10 J7, 3-4
AO1 J8, 1-2
AO2 J8, 3-4
RLY1 J9, 1-3
RLY 2 J9, 4-6
RLY 3 J9, 7-9
RLY 4 J9, 10-12
RLY 5 J9, 13-15
LEN
STATUS
J6
GREEN LED -
LEN (LOCAL EQUIPMENT NETWORK)
Fig. 25 — Controls Expansion Board (CEM)
SIGNAL PIN(S)
1=5v, 2=Vin, 3=GND (thermistor 1-2)
4=5v, 5=Vin, 6=GND (thermistor 4-5)
7=5v, 8=Vin, 9=GND (thermistor 7-8)
10=5v, 11=Vin, 12=GND (thermistor 10-11) (0-5VDC, thermistor, ohms)
13=5v, 14=Vin, 15=GND (thermistor 13-14) (0-5VDC, thermistor, ohms)
1=5v, 2=Vin, 3=GND (thermistor 1-2)
4=5v, 5=Vin, 6=GND (thermistor 4-5)
7=5v, 8=Vin, 9=GND (thermistor 7-8)
1
3
1=0-20mA, 2=GND
3=0-20mA, 4=GND
1 = 2 = RLY1A, 3 = RLY1B
4 = 5 = RLY2A, 6 = RLY2B
7 = 8 = RLY3A, 9 = RLY3B
10 = 11= RLY4A, 12 = RLY4B
13 = 14 = RLY5A, 15 = RLY5B
111
PORT STATE
(0-5VDC, thermistor, ohms)
(0-5VDC, thermistor, ohms)
(0-5VDC, thermistor, ohms)
(0-5VDC, thermistor, ohms)
(0-5VDC, thermistor, ohms)
(0-5VDC, thermistor, ohms)
(thermistor, ohms)
(thermistor, ohms)
0-20mA OUT
0-20mA OUT
1 = Closes RLY1A/RLY1B
1 = Closes RLY2A/RLY2B
1 = Closes RLY3A/RLY3B
1 = Closes RLY4A/RLY4B
1 = Closes RLY5A/RLY5B
J7
ADDRESS
DIP SWITCH (ALL ON)
TEST 2
A48-7708