Carrier WEATHERMAKER 48/50AJ Operation And Service Manual page 120

POINT
POINT DESCRIPTION
NAME
INPUTS
BP Building static pressure
SP Supply Duct static pressure
OUTPUTS
SFAN_VFD Supply Fan Inverter speed
MLV Minimum load valve
ADDRESS DIP
SWITCHES ALL ON
CEBD430427
J6
Table 117 — VAV Control Board (ECB2) Inputs and Outputs
I/O POINT PLUG AND PIN
NAME REFERENCE
DI1
DI2
AN1
AN2
AO1
PP/MP
RLY1
RLY 2
RLY 3
RLY 6 J8, 16-18
RED LED-
STATUS
HK50AA032
4-POSITION
DIP SWITCH
4 1
7
XDCR/THERM THERM
Fig. 28 — Staged Gas Heat Control Board (SCB)
SIGNAL PIN(S)
J4, 1-2
J4, 3-4
J5, 1-3 1=24VDC, 2=0-20mA in, 3=GND
J5, 4-6 4=24VDC, 5=0-20mA in, 6=GND
J9, 1-2 1=0-20mA, 2=GND
J7, 1-3 1=PP/MP Data, 2=24VAC, 3=GND
J8, 1-3 1 = 2 = RLY1A, 3 = RLY1B
J8, 4-6 4 =5 = RLY2A, 6 = RLY2B
J8, 7-9 7 = 8 = RLY3A, 9 = RLY3B
16 = 17 = RLY6A, 18 = RLY6B
GREEN LED-
LEN (LOCAL EQUIPMENT NETWORK)
CEPL130427
A48-7707
J7
3 1 3 1
0-20mA OUT
120
PORT STATE
2 24VAC = 1, 0VAC = 0
4 24VAC = 1, 0VAC = 0
0-20mA OUT
Belimo PP/MP Protocol
1 = Closes RLY1A/RLY1B
1 = Closes RLY2A/RLY2B
1 = Closes RLY3A/RLY3B
1 = Closes RLY6A/RLY6B
J8
0-20mA
0-20mA