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Option Boards
Card typecode
Basic 1/0 cards [OPT-A]
NXLOPTAA
NXLOPTAI
1/0 expander cards [OPT-B],
typical
NXOPTB2
NXOPTB4
NXOPTB5
Fieldbus card [OPT-C]
NXOPTC2
NXOPTC3
NXOPTC4
NXOPTC5
NXOPTC6
NXOPTC7
NXOPTC8
NXOPTCI
NXOPTCJ
Control Inputs/Outputs
Standard I/0
Terminal
1
+10 V
Reference voltage
2
AI1+
Analog input, 0-10 V (0/4-20mA)
3
AI1-
Al common
4
AI2+
Analog input, 0/4-20 mA (0-10 V)
5
AI1-
Al common
6
+24 V
24 V auxiliary voltage
7
GND
I/0 ground
8
DIN1
Start forward
9
DIN2
Start reverse
10
DIN3
Preset speed 1
11
GND
I/0 ground
18
A01+
Analog output, output frequency
19
A01-
A0 common
A
RS485
Serial bus (modbus RTU)
B
RS485
Serial bus
30
+24 V
External control voltage supply
21
R01
Relay output 1, FAULT
22
R01
23
R01
All inputs and outputs of the standard I/0 and option
boards are freely programmable.
All analog inputs and outputs isolated as standard.
DO
DI
Al
mA
isol.
3
1
3
1
RS-485 (Multiprotocol)
Profibus DP
LonWorks
Profibus DP (D9 type connector)
CANopen (slave)
DeviceNet
RS-485 (Multiprotocol, D9 type connector)
Modbus/TCP (Ethernet)
BACnet
Signal, default settings
I/0 Signal
AO
EO
RO
Therm
mA
NO
NO
isol.
NC
+24 V
1
1
1
1
1
1
2
3
Standard I/O [in NXL Compact only with option NXLOPTAI]
Terminal
Signal, default settings
12
+24 V
24 V auxiliary voltage
13
GND
I/0 ground
14
DIE1
Preset speed 2
15
DIE2
Fault reset
16
DIE3
Disable PID
25
ROE1
Expander Relay output 1, RUN
26
ROE1
28
TI1+
Thermistor input
29
TI1-
(galvanically isolated)
NXLOPTAA [typical option for NXL Compact]
Terminal
Signal, default settings
1
+24 V
24 V auxiliary voltage
2
GND
I/0 ground
3
DIE1
Preset speed 2
4
DIE2
Fault reset
5
DIE3
Disable PID
6
D01
Digital output, Ready
24
ROE1
Expander Relay output 1, RUN
25
ROE1
26
ROE1
+24
Note
EXT
included in NXL HVAC series
1
analog signals galvanically isol. seperat.
N2 (Modbus as standard)
N2 (Modbus as standard)
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