17
14. Electrical data
Pos.
in
fig. 1
Termi-
nal
Description
Data
Function
Diagram
8
T1
Terminal for alarm
relay
Rated voltage and cur-
rent: 240 VAC and 2 A.
Max. switched power:
240 W or 2500 VA.
Max. switched current:
10 A.
Max. switched voltage:
240 VDC* or 440 VAC.
B300 pilot duty [1]
R300 pilot duty [1]
All alarms trip the alarm
relay. The alarm relay is
closed during normal opera-
tion.
In case of alarm or if the
IO 112 is not connected to
the electricity supply, the
relay opens and breaks the
connection between T1 and
T2.
T2
Terminal for alarm
relay
9
G1
GND for analog
output 1
0 V
A1
Terminal for
analog output 1
G2
GND for analog
output 2
0 V
A2
Terminal for
analog output 2
K1
GND connection
0 V
Feedback from motor contac-
tor whether the pump is run-
ning or not.
The input must be short-
circuited when the pump is
running.
K2
Terminal for
conductor for
contactor status
Digital input
R1
GND connection
0 V
For resetting of alarms, see
section
.
The input must be short-
circuited when alarms are
reset.
R2
Terminal for reset-
ting
Digital input
10
PE
Earth
Earth
Supply voltage to IO 112
-
GND for supply
voltage
0 VDC
24 VAC ± 10%
+
Plus for supply
voltage
24 VAC ± 10%
24 VDC ± 10%
11
P1
Terminal for
Pt1000 sensor
Sensor input
If the Pt1000 function is not
used, terminals P1 and P2
must be connected by a
jumper.
P2
Terminal for
supply voltage to
Pt1000 sensor
15 V
P3
Pulse counter
input
Sensor input
P1 to P5 are used for the
connection of sensors in the
pump. All sensors in contact
with phase voltage must be
double insulated according to
EN 61010-1.
P4
Terminal for
supply voltage to
AI
15 V
P5
Terminal for AI
Sensor input 4-20 mA
12
A
RS485 A
Bus input
RS485 communication con-
nection (9600 baud)
Y
RS485 GND
0 V
B
RS485 B
Bus input
T1
T2
K2
K1
R2
R1
+
A
Y
B
