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TERMINAL SETTINGS
There are two Hex switches on the controller: S1 and S2, as
shown in Figure 14.
Figure 14 CPO-VAV2A Hex Switches Layout
Set S1 to the lower nibble of the address and S2 to the higher
nibble of the address.
Example: If you want to set 2 as the MAC address, S1 should
be set to 2 and S2 should be set to 0.
Similarly if you want to set 17 as the MAC address, S1 should
be set to 1 and S2 should be set to 1.
The following table illustrates the S1 and S2 switch settings
for the corresponding MAC addresses.
S1 Switch
S2 Switch
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
A
0
B
0
C
0
D
0
E
0
F
0
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
1
A
1
EN1B-0022 IE10 R0717
S1
S2
MAC Address
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
S1 Switch
S2 Switch
B
1
C
1
D
1
E
1
Attention
Make sure that each CPO-VAV2A controller on the
MS/TP bus has a unique MAC address. Valid
address for CPO-VAV2A is from 1 to 30. 0 is
reserved for the plant controller while CPO-Studio
uses addresses 32 and 35.
It also shall be ensured that CPO-VAV2A, CP-
VAV/SPC and CP-DIO on the same MS/TP bus
MUST NOT have the same MAC Address.
Analog Input
Analog inputs can be used, for example, to connect the wall
module, or temperature sensor to the controller.
Technical specification
•
4 analog inputs
•
AI 1, AI 2, AI 3, and AI 4 are universal, and can be used as
-
NTC20K (-50 to +150 deg.C)
-
PT1000 (-50 to +150 deg.C)
-
0 to +10 V
-
0(4) to 20 mA (with an external resistor of 499
0.25%)
-
Potential Free Contact (Digital Input)
•
AI 2, AI 3 and AI 4 can also be used as wall module inputs:
-
Space Temperature Sensor
-
Set Point
-
Bypass/Fan Speed
•
12-bit A/D resolution
The CPO-VAV2A controller supports wall modules:
•
TR2x
•
TR40
•
TR42
•
T7560
•
T7460
•
C7110C/D
•
C7262A
•
CP-WM-FCU
•
CP-CM
•
CP-US-WM-FCU
8
MAC Address
27
28
29
30
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