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Pump controllers with position feedback
T-Axis (TL2/ETP): hydraulic movement of the regulation begin
Controllers of the TL2 and ETP type offer a power limitation with a hyperbolical characteristic. The controller is set ex works to a
customer specific power limit value. The volume flow is restricted, when this limit is exceeded. By means of control ports at the
controller, the point at which the power limiter sets in can be raised, as well as lowered during operation.
Dependent on the rated size of the unit, there is a minimum value for the power limitation which must not be underrun, neither
by the ex work setting, nor by shifting. The maximum mechanically set value at which the power limitation sets in, is 250 bar,
independent of the pump's rated size and speed. The pump must never be operated with more than its maximum power.
Power limiter characteristic curve
2
1 Displacement
2 Pressure
Power range of the pump
Regulation begin power limitation
Power limiter performance
Ex works setting [kW]
Shifting of the regulation begin
[bar/bar]
Regulation begin minimum [bar]
Regulation begin maximum [bar], mechanically set
Max. pressure at Z1/Z2 [bar]
28
Shifting of the regulation begin
Z1
Z2
1
105
9 - 106
Z1
7.1
Z2
-3.2
60
2
+175
+150
+125
+100
+75
+50
+25
0
-25
-50
-75
-100
0
2
4
6
8
10
pZ [bar]
1 Pilot pressure port Z1, Z2
2 Displacement of the regulation begin [bar]
Pilot pressure port Z1
Pilot pressure port Z2
Rated size
105
135
12 - 136
19 - 184
7.1
7.4
-3.2
-3.3
60
80
250
25
regulation begin
basic mechanical setting
1
12
14
16
18
20
210
32 - 221
7.8
-3.4
80
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