POINT
NAME
INPUTS
LAT1SGAS
LAT2SGAS
LAT3SGAS
OUTPUTS
HS3
HS4
HS5
HS6
Table 118 -- Staged Gas Control Board (SCB) Inputs and Outputs
POINT DESCRIPTION
Leaving air temperature 1
Leaving air temperature 2
Leaving air temperature 3
Heat Stage 3
Heat Stage 4
Heat Stage 5
Heat Stage 6
I/OPOINT
NAME
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN8
AN9
AN10
A01
A02
RLY1
RLY2
RLY3
RLY4
RLY5
PLUG AND PIN
REFERENCE
J5, 1-3
J5, 4-6
J5, 7-9
J5, 10-12
J5, 13-15
J6, 1-3
J6, 4-6
J6, 7-9
J7, 1-2
J7, 3-4
J8, 1-2
J8, 3-4
J9, 1-3
J9, 4-6
J9, 7-9
J9, 10-12
J9, 13-15
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, 1l=Vin, 12=GND (thermistor 10-11 )
13=5v, 14=Vin, 15=GND (thermistor 13-14)
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=O-20mA, 2=GND
3=O-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
PORT STATE
(O-5VDC, thermistor, ohms)
(O-5VDC, thermistor, ohms)
(O-5VDC, thermistor, ohms)
(O-5VDC, thermistor, ohms)
(O-5VDC, thermistor, ohms)
(O-5VDC, thermistor, ohms)
(O-5VDC, thermistor, ohms)
(O-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
rq[]
STATUS
LEN
J6
RED LED-STATUS
GREEN LED-
LEN (LOCAL EQUIPMENT NETWORK)
LIJ
t-
J7
\
ADDRESS
DIP SWITCH (ALLON)
Fig. 29 -- Controls Expansion Board (CEM)
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121
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