Control I/O - Honeywell NXL Series Applications Manual

Page 4 (68)
2.

Control I/O

Reference
potentiometer
2
Control I/O
Terminal
1 +10V Reference output
ref
2 AI1+ Analogue input, voltage range
0—10V DC.
3 AI1- I/O Ground
4 AI2+ Analogue input, voltage range
0—10V DC, or current range
5 AI2-
0/4—20mA
6 +24V Control voltage output
7
GND I/O ground
8 DIN1 Start forward
9 DIN2 Start reverse (programmable)
10 DIN3 Multi-step speed selection 1
(programmable)
11 GND I/O ground
18 AO1+ Output frequency
mA
Analogue output
19 AO1-
A RS 485 Serial bus
B RS 485 Serial bus
30 +24V 24V aux. input voltage
21 RO1
22 RO1
23 RO1
12 +24V +24 V DC
13 GND I/O ground
14 DIE1 Preset speed selection 2
(programmable)
15 DIE2 Fault Reset
(programmable)
16 DIE3 Disable PID (PID control
selection)
(Programmable)
25 ROE1 Expander Relay output 1 (NO)
RUN
26 ROE1
28 TI+ Motor Thermistor input
29 TI-
Table 1- 1. HVAC application default I/O configuration
Terminal
1 +10V Reference output
ref
2 AI1+ Analogue input, voltage range
or 0—10V DC
DIN 4
3 AI1- I/O Ground
4 AI2+ Analogue input, voltage range
5 AI2- 0—10V DC or current range
0—20mA
6 + 24 V Control voltage output
7 GND I/O ground
Table 1- 2. The programming of AI1 as DIN4
Signal
Voltage for potentiometer, etc.
Voltage input frequency reference
Can be programmed as DIN4
Ground for reference and controls
Current input frequency reference
(programmable)
Voltage for switches, etc. max 0.1 A
Ground for reference and controls
Contact closed = start forward
Contact closed = start reverse
Contact closed = multi-step speed
Ground for reference and controls
Programmable
Range 0—20 mA/R
Differential receiver/transmitter
Differential receiver/transmitter
Control power supply backup
Relay output 1 Programmable
FAULT
Control voltage output; voltage for
switches etc.
Ground for reference and controls
Contact closed = Preset speed 2
Contact closed = Fault reset
Contact closed = Disable PID
Programmable
Active = Fault, stop according to defined
method
Signal
Voltage for potentiometer, etc.
Voltage input frequency reference (MF2-3)
Voltage/current input frequency reference
(MF4-MF6)
Can be programmed as DIN4
Ground for reference and controls
Voltage
reference
Ground for reference and controls
Honeywell
Description
, max. 500Ω
L
Description
or current input frequency