Grundfos TPE2 - Operating Range

Level control
K
p
T
i
L
2.5 100
Rules of thumb
If the controller is too slow-reacting, increase the
gain.
If the controller is hunting or unstable, dampen the
system by reducing the gain or increasing the integral
time.
Factory setting
See section Factory settings.
Related information
35. Factory settings
17.18 Operating range
Pump variant Operating range
TPE3, TPE3 D ●
TPE2, TPE2 D ●
Set the operating range as follows:
• Set the minimum speed within the range from
fixed minimum speed to user-set maximum
speed.
• Set the maximum speed within the range from
user-set minimum speed to fixed maximum
speed.
The range between the user-set minimum and
maximum speeds is the operating range.
1
2
3
4
5
100%
67%
24%
13%
0%
TM006785
Example of minimum and maximum settings
Speeds below 25 % may result in noise from the shaft
seal.
Pos. Description
1 Fixed maximum speed
2 User-set maximum speed
3 Operating range
4 User-set minimum speed
5 Fixed minimum speed
Factory setting
See section Factory settings.
Related information
35. Factory settings
62
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