Electrical Data - Grundfos IO 112 Installations- Und Bedienungsanleitung

14. Electrical data

Pos.
Termi-
in Description
nal
fig. 1
Terminal for alarm
T1
relay
8
Terminal for alarm
T2
relay
GND for analog
G1
output 1
Terminal for
A1
analog output 1
GND for analog
G2
output 2
Terminal for
A2
analog output 2
9
K1 GND connection
Terminal for
K2 conductor for
contactor status
R1 GND connection
Terminal for reset-
R2
ting
PE Earth
GND for supply
-
voltage
10
Plus for supply
+
voltage
Terminal for
P1
Pt1000 sensor
Terminal for
P2 supply voltage to
Pt1000 sensor
11 Pulse counter
P3
input
Terminal for
P4 supply voltage to
AI
P5 Terminal for AI
A RS485 A
12 Y RS485 GND
B RS485 B
Data
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]
0 V
0 V
0 V
Digital input
0 V
Digital input
Earth
0 VDC
24 VAC ± 10%
24 VAC ± 10%
24 VDC ± 10%
Sensor input
15 V
Sensor input
15 V
Sensor input 4-20 mA
Bus input
0 V
Bus input
Function
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.
Feedback from motor contac-
tor whether the pump is run-
ning or not.
The input must be short-
circuited when the pump is
running.
For resetting of alarms, see
section 10.1.
The input must be short-
circuited when alarms are
reset.
Supply voltage to IO 112
If the Pt1000 function is not
used, terminals P1 and P2
must be connected by a
jumper.
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.
RS485 communication con-
nection (9600 baud)
Diagram
T2
T1
K2
K1
R2
R1
+
A
Y
B
17