Neptronic CMU Series, Specification And Installation Instructions, Page: 11 / 20

Compact Make-up Air Unit
Specification and Installation Instructions
www.neptronic.com Page | 11
Add-on PCB Overview (Option)
TB1
TB2
TB3
JP2
TB7 TB5
DS1
DS2
J1
TB6
1
2
2
1
1
1
2
2
3
1 2 3 1 2 1 2 3
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
Network | DS2
4 Mode
OFF BACnet *
ON Modbus
* default setting
Baud Rate | DS2
1 2 3 Result
OFF OFF OFF Auto Detect*
OFF OFF ON 9600
OFF ON OFF 19,200
OFF ON ON 38,400
ON O FF OFF 57,600
ON OFF ON 76,800
ON ON OFF 115,200
* default setting
MAC Address | DS1
The 8 DIP switches represent a binary
logic to calculat e t he MAC address.
Default = all OFF
BACnet all OFF = 0
Modbus all OFF = 1
End of Line | JP3
None* 120 ohms
* default setting
Analog I nputs | TB5
AI 1: Analog I nput 1 (0-10Vdc)
AI 2: Analog I nput 2 (0-10Vdc)
COM: Common
Analog O utputs | TB7
AO1: Analog Output 1
COM: Common
AO 2: Analog Output 2
A
I1
A
I2
C
O
M
A
O
1
C
O
M
A
O
2
Temperature Sensor | TB6
AI 3: Analog Input 3
(10KOhms or dry contact)
AI 4: Analog Input 4
(10KOhms or dry contact)
TB4
BO1
BO2
COM
COM
Binary Outputs | TB1-2
BO1: Binary Output 1
COM: Common
BO 2: Binary Output 2
COM: Common
COM
24Vac
DATA
A+
B-
TDF Digital Room Sensor | TB3
COM: Common
24Vac: Power Supply
DATA: Data
Network Port | TB4
A+: BACnet/Modbus A+
B-: BACnet/Modbus B-
A
I3
A
I4
MAC Address DIP Switch (DS1)
MAC address for BACnet and Modbus communication, are selectable by DIP switch DS1 using binary logic.
BACnet
•
Highest MAC address is 254.
•
Default is all switches OFF = MAC address 0
•
If you do not change device instance in program mode, it will be automatically modified according to the MAC address.
MAC Address DS.1 = 1 DS.2 = 2 DS.3 = 4 DS.4 = 8 DS.5 = 16 DS.6 = 32 DS.7 = 64 DS.8 = 128 Default Device Instance
0 OFF OFF OFF OFF OFF OFF OFF OFF 153000
1 ON OFF OFF OFF OFF OFF OFF OFF 153001
2 OFF ON OFF OFF OFF OFF OFF OFF 153002
3 ON ON OFF OFF OFF OFF OFF OFF 153003
4 OFF OFF ON OFF OFF OFF OFF OFF 153004
… … … … … … … … … …
126 OFF ON ON ON ON ON ON OFF 153126
… … … … … … … … … …
254 OFF ON ON ON ON ON ON ON 153254
Modbus
•
Highest MAC address is 247.
•
Default is all switches OFF = MAC address 1
•
MAC address is binary value +1
•
There is no device instance for Modbus.
MAC Address DS.1 = 1 DS.2 = 2 DS.3 = 4 DS.4 = 8 DS.5 = 16 DS.6 = 32 DS.7 = 64 DS.8 = 128
0+1 = 1 OFF OFF OFF OFF OFF OFF OFF OFF
1+1 = 2 ON OFF OFF OFF OFF OFF OFF OFF
2+1 = 3 OFF ON OFF OFF OFF OFF OFF OFF
3+1 = 4 ON ON OFF OFF OFF OFF OFF OFF
4+1 = 5 OFF OFF ON OFF OFF OFF OFF OFF
… … … … … … … … …
126+1 = 127 OFF ON ON ON ON ON ON OFF
… … … … … … … … …
246+1 = 247 OFF ON ON OFF ON ON ON ON