Grundfos IO 113 - Page 21

English (GB)
21
3
PE Earth Earth
Supply voltage to IO 113
-
GND for supply
voltage
0 VDC
24 VAC
+ 10 %/- 10 %
+
Positive for
supply voltage
24 VAC
+ 10 %/- 10 %
24 VDC
+ 10 %/- 10 %
5
A RS-485 A Bus input
RS-485 communication connection
(9600 baud)
Y RS-485 GND 0 V
B RS-485 B Bus input
10
I1 Earth Earth
The insulation resistance between
stator windings and earth is
measured. The measurement is only
correct when the motor is stopped.
Measurement voltage: 10 VDC.
I2 Not connected -
I3
Terminal for
measurement of
stator insulation
resistance
CAT II 600 V
11
P1
Terminal for
sensors in the
pump
Sensor input
Thermal switch or PTC sensor
according to DIN 44081 and 44082.
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 UL/
IEC/EN 61010-1.
P2
Terminal for
supply voltage
to sensors in
the pump
15 V
P3
Terminal for
sensors in the
pump
Sensor input
P4
Terminal for
supply voltage
to sensors in
the pump
15 V
P5
Terminal for
sensors in the
pump
Sensor input
Pos. Terminal Description Data Function Diagram
+
A
Y
B
L1
L2
L3
I3
I1