4 • vacon
Control I/O
Tel. +358 (0)201 2121 • Fax +358 (0)201 212 205
2.
CONTROL I/O
OPT-A1
Terminal
Signal
Description
1
+10V
ref
Reference output
Voltage for potentiometer, etc.
2
AI1+
Analogue input, voltage range
0—10V DC
Pressure, outlet (pump)
3
AI1-
I/O
Ground
Ground for reference and controls
4
AI2+
Analogue input, current range
0—20mA
Temperature
5
AI2-
6
+24V
Control voltage output
Voltage for switches, etc. max 0.1 A
7
GND
I/O
ground
Ground for reference and controls
8
DIN1
Start/Stop
Control place A (PID
controller)
Contact closed = start
9
DIN2
Flow
fault
NO/NC programmable
10
DIN3
External
fault
(programmable)
Contact open = External fault
11
CMA
Common for DIN 1—DIN 3
Connect to GND or +24V
12
+24V
Control voltage output
Voltage for switches (see #6)
13
GND
I/O
ground
Ground for reference and controls
14
DIN4
Pump
1
Forced or single run
Combined with DIN1
15
DIN5
Pump
2
Forced or single run
Combined with DIN1
16
DIN6
Sequence,
2-pump
system
Combined
with
DIN1
17
CMB
Common
for
DIN4—DIN6
Connect
to
GND
or
+24V
18
AO1+
Output
frequency
Analogue output
Programmable
Range 0—20 mA/R
L
, max. 500
19
AO1-
20
DO1
Digital
output
READY
Programmable
Open collector, I 50mA, U 48 VDC
OPT-A2
21
RO1
Relay output 1
RUN
Programmable
22
RO1
23
RO1
24
RO2
Relay output 2
FAULT
Programmable
25
RO2
26
RO2
OPT-B5
22
RO1
Relay output 1
COOLING OK
23
RO1
25
RO2
Relay output 2
PUMP 1
26
RO2
28
RO3
Relay output 3
PUMP 2
29
RO3
Table 1. Heat exchanger application I/O configuration example (with 2-wire
transmitter).
Jumper block X3:
CAN grounding
Connected to shield
Not connected to shield
Jumper block X4:
CAN termination
Terminated
Not terminated
=
Factory default
READY
RUN
220
VAC
Actual
value I
(0)4…20 mA
2-wire
transmitter
–
+
mA
Reference potentiometer,
1…10 k