17
2.
Introduction
2.4.Water Pump
%PWM- out
Status
Potential causes
0
2
5-75
80
85
90
95
100
Pump output iPWM interface damaged
Stand-by, pump is ready to run
Pump is running normally, flow information is
supplied
Abnormal running mode
Pump is running but not at optimal performance
Abnormal function mode
Pump has stopped but is still functional
Abnormal function mode
Pump has stopped but is still functional
Check the installation setup and medium
The pump has stopped due to permanent failure
Problem of iPWM connection
iPWM interface in short circuit
/
/
-Undervoltage 160/170-194V
-Self thermal protecting mode
-Undervoltage
﹤
160/170V
-Overvoltage
-Unexpected external flow
-Failure on another component than
pump
-Debris in the installation
-Bad temperature satup
-Pump blocked
-Electronic module out of order
iPWM interface in open circuit
H
/m
5%
10%
15%
21%
28%
35%
42%
52%
63%
85%
Wilo-Para 25/9
1~230 V - Rp 1
% PWM 1
p
/kPa
8
6
4
2
0
0
2
1
3
4
3
Q
/m /h
0
80
60
40
20
0
0
0.2
0.4
0.6
0.8
1.0
1.2
Q
/l/s
16
Q
/lgpm
12
8
4
p
/W
1
80
60
40
20
0
0
2
1
3
4
3
Q
/m /h
Summary of Contents for Thermal Plus 12
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