HYDAC ENS 3000 User Manual
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16.2 HYDRAULIC POWER UNIT: TO MONITOR MINIMUM FLUID LEVEL
WITH ADVANCE WARNING AND MINIMUM TEMPERATURE
MONITORING
In this example application, an advance warning should be given when the fluid
level reaches 1.18 inch and tank refilling should be started. In addition, the
temperature of the hydraulic fluid should not drop below a minimum value. If,
for example, 68 °F is reached, a stop signal will be given. Furthermore the
temperature, in the form of a 4 .. 20 mA signal, should be made available to a
PLC card.
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 point
Selection Numerical
value
Switching output S.S.1 assignment
Niv [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
TEMP
Switching mode S.m. 2
SP
Switching direction S.d. 2
on
Switch-on delay Ton 2
0
Switch-off delay Toff 2
0
Analogue output S.ouT assignment
TEMP
Analogue output ouTP
MAMP
Switching point settings
Numerical value
Switching output S.P.1
1.2
Hysteresis switching output Hi.1
0.02
Switching output S.P.2
0,81
Hysteresis switching output Hi.2
0.02
17. Note
The information in this brochure relates to the operating conditions and
applications described.
For applications or operating conditions not described, please contact the
relevant technical department.
Subject to technical modifications.