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Response of the pump in the event of a fault
Fault
Response
time
(tr)
Mains under-
≤ 100 ms
voltage
Mains overvolt-
≤ 100 ms
age
Motor blocking
≤ 10 s
Defective syn-
≤ 10 s
chronous run
Motor overload
60 s
Short circuit/
< 6 μs
earth leakage
Contact/
< 10 s
winding error
Dry run
< 60 s
Excess module
< 1 s
temperature
Table 10.1: Response of the pump in the event of a fault
10.2 Restart times of the pump
Stratos PARA:
Start time (sec.): p-c, power switched on
0 to min p-c
0 to max p-c
Start time (sec.): p-v, power switched on
0 to min p-v
0 to max p-v
Start time (sec.): Control input "Analogue In 0...10V"
0-10V ON: 0 to n
max
0-10V ON: 0 to n
min
n
to n
min
max
n
to n
max
min
Start time (sec.): Control input PWM
PWM ON: 0 to n
max
PWM ON: 0 to n
min
n
to n
min
max
n
to n
max
min
( ) Start time when power is switched on
Table 10.2: Restart times of the pump
Installation and operating instructions Wilo-Stratos PARA/-Z
Delay time
Permissible
(ta)
number of
faults (N)
≤ 20 ms
no restrictions
≤ 20 ms
no restrictions
30 s
5
≤ 5 s
no restrictions
30 s
no restrictions
1 s
25
30 s
5
30 s
no restrictions
30 s
5
1-5
1-7
1-9
4
4
4
6
6
6
4
4
4
5
5
5
2 (3)
2 (3)
2 (3)
1 (2)
1 (2)
1 (2)
2
2
2
2
2
2
2 (3)
2 (3)
2 (3)
1 (2)
1 (2)
1 (2)
2
2
2
2
2
2
Auto
Waiting
reset
time
(SSM is
active)
(tn)
yes
30 s
yes
30 s
no
30 s
yes
30 s
yes
30 s
no
30 s
no
30 s
yes
30 s
no
30 s
1-11.5
1-8
1-11
4
5
5
6
8
8
4
5
5
5
7
7
2 (3)
2 (3)
3 (5)
1 (2)
1 (2)
1 (3)
2
2
2
2
2
4
2 (3)
2 (3)
3 (5)
1 (2)
1 (2)
1 (3)
2
2
2
2
2
4
English
SSM
open
Response time
1.35 s
≤
open
open
open
open
open
open
open
open
1-12
8
13
4
9
3 (5)
2.5 (3.5)
2
2
3 (5)
2.5 (3.5)
2
2
45
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