Danfoss VACON NX, Application Manual

Page: 11 / 360

2.2 Control I/O in Basic Application
1
6
2
3
4
5
18
19
20
12
7
13
8
9
10
14
15
16
21
OPTA 2 / OPTA 3
22
23
11
17
24
25
26
DIN4 DIN5
Voltage for
potentiometer, etc.
Ground for reference
and controls
Ground for reference
and controls
Ground for reference
and controls
Analogue input 2
frequency reference
Voltage for switches (see #6)
Connect to GND or +24 V
FAULT
External fault input
Programmable (P2.17)
Connect to
GND or +24 V
Contact open = no action
Contact closed = fault reset
Contact open = no fault
Contact closed = fault
Contact closed = start forward
Contact closed = start reverse
Analogue output 1
Output frequency
Programmable
(P2.16)
Range 0—20 mA/R
L
,
max. 500 Ω
Open collector,
I≤50 mA, U≤48 VDC
Digital output 1
READY
RUN
mA
READY
AO1-
DO1
+24V
GND
GND
DIN1
DIN2
DIN3
DIN4
DIN5
DIN6
RO1
RO1
RO1
CMA
CMB
RO2
RO2
RO2
Standard I/O board
Terminal Signal Description
+10V
ref
AI1+
AI1-
AI2+
AI2-
+24V
Reference output
Analogue input 1
Voltage range 0—10 V DC
Programmable (P2.14)
Analogue input 2
Current range 0-20mA
Control voltage output
I/O ground
I/O ground
Preset speed select 1
Preset speed select 2
Fault reset
Common for DIN 1—DIN 3
Common for DIN4-DIN6
Control voltge output
I/O ground
Relay output 1
Relay output 2
AO1+
Analogue input 1
frequency reference
Voltage for switches,
etc. max 0.1 A
Start forward
Start reverse
Freq. ref.
Open
Closed
Open
Closed
Open
Open
Closed
Closed
I/O ref (P2.14)
Preset Speed 1
Preset Speed 2
Max frequency
RUN
Reference potentiometer,
1-10kΩ
e3
0b
h0
55
.2
0
Illustration 2: Default I/O Configuration in Basic Application
The option board OPTA3 has no terminal for open contact on its second relay output (terminal 24 is missing).
See jumper selections in
Illustration 3 . More information in the User Manual of the product.
AB296635287482en-000301 / DPD00903 | 11 Danfoss A/S © 2023.02
Basic Application
VACON® NX All-in-One
Application Guide