HYDAC ENS 3000 User Manual
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16. Application
examples
16.1 HYDRAULIC POWER UNIT: TO MONITOR MINIMUM FLUID LEVEL
WITH ADVANCE WARNING AND ALARM
In this example application, an advance warning should be given when the fluid
level reaches 1.18 inch and tank refilling should be started. An alarm should be
triggered if the fluid level drops below 0.39 inch and reset once the fluid level
has reached 0.59 inch again.
To achieve this as described in the example, the following settings must be
made in the ENS 3000 menu and the two switching points must be set as
follows:
Menu item
Selection
Numerical value
Switching output S.S.1 assignment
Niv [= fluid level]
Switching mode S.m. 1
SP
Switching direction S.d. 1
off
Switch-on delay Ton 1
0
Switch-off delay Toff 1
0
Switching output S.S.2 assignment
niv
Switching mode S.m. 2
SP
Switching direction S.d. 2
on
Switch-on delay Ton 2
0
Switch-off delay Toff 2
0
Switching point settings
Numerical value
Switching output S.P.1
1.2
Hysteresis switching output Hi.1
0.02
Switching output S.P.2
0.59
Hysteresis switching output Hi.2
0.2