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46(96) Cabling and connections Honeywell
HoneywellHoneywell
Honeywell
6
6.2.5 Control terminal signals
Terminal Signal Technical information
1
+10 Vref Reference voltage Maximum current 10 mA
2
AI1+ Analogue input,
voltage
(MF4 and bigger: voltage or current)
MF2-MF3: Voltage input
MF4-MF6 Selection V or mA with jumper block X8 (see
page 39):
Default: 0– +10V (Ri = 200 k
Ω
)
0– 20mA (Ri = 250
Ω
)
3
AI1– Analogue input common Differential input if not connected to ground;
Allows
±
20V differential mode voltage to GND
4
AI2+ Analogue input, voltage or
current
Selection V or mA with jumper block X4(MF2-MF3) and
X13 (MF4-MF6)
Default: 0– 20mA (Ri = 250
Ω
)
0– +10V (Ri = 200 k
Ω
)
5
AI2– Analogue input common Differential input;
Allows
±
20V differential mode voltage to GND
6
24 Vout 24V auxiliary output voltage
±
10%, maximum current 100 mA
7
GND I/O ground Ground for reference and controls
8
DIN1 Digital input 1
9
DIN2 Digital input 2
10
DIN3 Digital input 3
R
i
= min. 5k
Ω
11
GND I/O ground Ground for reference and controls
18
AO1+ Analogue signal (+output)
19
AO1–/GND Analogue output common
Output signal range:
Current 0(4)–20mA, R
L
max 500
Ω
or
A
RS 485 Serial bus
Differential receiver/transmitter, bus impedance 120
Ω
B
RS 485 Serial bus
Differential receiver/transmitter, bus impedance 120
Ω
30
+24V 24V auxiliary input voltage Control power supply backup
21
RO1/1
22
RO1/2
23
RO1/3
Relay output 1 Switching capacity: 24VDC/8A
250VAC/8A
125VDC/0,4A
Relay output terminals are galvanically isolated from the
I/O ground
Table 6-9. Control I/O terminal signals
NOTE! NXL HVAC additional inputs terminal signals defined in section 11 NXLOPTAI