Orion System VCM Controller - Manual (Page 23)

VCM Controller
Technical Guide
23
Outdoor Air Humidity Sensor
When used with the VCM controller, the Outdoor Air Humidity Sensor
is connected to the system by wiring it to the AIN1 input on the OE354,
4 Analog Input 1 Analog Output Expansion board. It must be wired as
shown in Figure 20 for proper controller operation.
Jumpers Must Be Set as
Shown For Correct
O-5 VDC Operation
1 & 3 Are Off
2 & 4 Are On
Jumpers Must Be Set as
Shown For Normal
1, 2, 4, 5 & 6 Are Off
3 Is On
Operation Of Sensor
4-20
mA
Zero
Span
V
A
Co
rD
C
GND 0-5V
or
0-10V
4
4
4
5
5
6
6
ON
ON
ON
3
3
3
2
2
2
1
1
1
4
ON
3 2 1
24
V
A
C
GND
OE352 or OE353 Expansion Base Board
OE265-13
OA Humidity Sensor
10 VA Minimum Power Required For
Each 2 Slot Expansion Base Board.
20 VA Minimum Power Required For
Each 4 Slot Expansion Base Board
R20
C8
TB2
D3
PWR LD1
24V
AC-IN GND GND
TB1
PJ2
+24VDC-OUT
R17
PJ1
R15
Connect To VCM Controller
Connect To Next Expansion Base Board
(When Used)
0-5 VDC Input
OE354
-
4
Analog
Input
-
1
Analog
Output
Board
GND
AIN1
JO3
JO4
JO2
JO1
CX2
R10
AOUT1
AIN4
TB1
GND
AIN2
AIN3
AIN1
PU4
U2 D5 Q1
R8
R9
LM358
C5
C1
R7
R6
R5
PU3
C4
C3
C2
PU2
PU1
4 ANALOG IN MOD. I/O BD.
R3
YS101784
D4
R4
D3
D1
D2
R2
R1 CX1
U1
P1
Pullup Resistor PU1 Must
Be Removed As Shown
Jumper J01 Must
Be Removed As Shown
WARNING!!
Observe Polarity! All boards must be wired with GND-to-
GND and 24VAC-to-24VAC. Failure to observe polarity will
result in damage to one or more of the boards. Expansion
Boards must be wired in such a way that power to both the
expansion boards and the controller are always powered
together. Loss of power to the expansion board will cause
the controller to become inoperative until power is restored
to the expansion board.
Warning: It is very important to be certain that all wiring is
correct as shown in the wiring diagram below.
Failure to observe the correct polarity will
result in damage to the OA Humidity Sensor or
controller.
Figure 20: Outdoor Air Humidity Sensor Wiring