POINT
NAME
INPUTS
RMTIN
ECONENBL,
ECOORIDE
RARH
OARH
OUTPUTS
ECBI_AO1
ECONOCMD
PE_A
PE_B
PE_C
ECON_PWR
Table 116 -- Economizer Control Board (ECB1) Inputs and Outputs
POINT DESCRIPTION
Remote occupancy
Economizer enable
Return air relative humidity
Outdoor air relative humidity
ECB1, analog output 1
Economizer actuator
(digital control)
Power Exhaust stage A
Power Exhaust stage B
Power Exhaust stage C
Economizer Power
I/O POINT
NAME
DI1
DI2
AN1
AN2
AO1
PP/MP
RLY1
RLY2
RLY3
RLY6
PLUG AND PIN
REFERENCE
J4, 1-2
J4, 3-4
J5, 1-3
J5, 4-6
J9, 1-2
J7, 1-3
J8, 1-3
J8, 4-6
J8, 7-9
J8, 16-18
SIGNAL PIN(S)
2
4
1=24VDC, 2=0-20mA in, 3=GND
4=24VDC, 5=0-20mA in, 6=GND
l=0-20mA, 2=GND
I=PP/MP Data, 2=24VAC, 3=GND
1 = 2 = RLY1A, 3 = RLY1B
4 =5 = RLY2A, 6 = RLY2B
7 = 8 = RLY3A, 9 = RLY3B
16 = 17 = RLY6A, 18 = RLY6B
PORT STATE
24VAC =I,0VAC =0
24VAC =I,0VAC =0
0-20mA
0-20mA
0-20mA OUT
Belimo PP/MP Protocol
1 = Closes RLY1A/RLY1B
1 = Closes RLY2A/RLY2B
1 = Closes RLY3A/RLY3B
1 = Closes RLY6A/RLY6B
RED LED GREEN LED-LEN
STATUS (LOCAL EQUIPMENT NETWORK)
cEn43o*sm-o**HK50AA034CEPL130493
SS-OtD
J.
%
[)[) E]
[][)[3[) [3
IC)
O. ,, I--I,,o -,. ,,
Jl
V ' .. ÷ -2°; ,,.g
ADDRESS DIP SWITCHES
RCB - 1-4ON
ECB - 1-OFF,2-4 ON
"1
,,18| ,]8£ €
Fig. 27 -- Economizer Control Board (ECB1) and VAV Control Board (ECB2)
119
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