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Product overview
Legend
Valve parameters
T_Tau
3
T_On
4
T_Switch_Off
5
I_Inrush
6
I_Hold
7
Tab. 2
5.1.2
Holding current reduction
Function description
The integrated holding current reduction reduces the current consumption to the set holding current
after the adjustable pickup time has elapsed.
With holding current reduction, the output current of the valve is measured and the signal at the VAEM
output is adjusted and controlled in accordance with the set parameters.
– Reduction of the heat development of the solenoid valve coil
– Increased service life of solenoid valves
– Lower power consumption
– Improvement of the switching times of solenoid valves
1
2
Fig. 2: Holding current reduction
1 Delay time
2 Pickup time
3 Current reduction time
4 Switching time
6
Description
Current reduction time
Switching time
Cooldown
Parameters cannot be set individually
T_Switch_Off is a constant 4 ms
Inrush current
Holding current
3
4
5 Cooldown
6 Inrush current
7 Holding current
5
Festo — VAEM-V-S8EPRS2 — 2021-10a
6
7
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