Argo-Hytos EL7-E, Instruction Manual

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EL7-E_Pokyny_Instructions_Hinweise_19152_1en_de_cz_04/2021
Page 14
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Ramp function:
The function allows to define a time in the range from 0 up to 45s, which is needed for increase of
input (and output) signal from zero to maximum and vice versa.
The ramp rise sets the time for which the signal behind the ramp function rises from 0 % to 100 %
with a 100% jump in the rise of the signal entering the ramp function.
The ramp descent sets the time for which the signal behind the ramp function drops from
100 % to 0 % at a 100% jump in the drop of the signal entering the ramp function.
The setting of ascending and descending part of characteristic reduces the dynamic transiens and
protects the circuit against mechanical stress.
Any changes made are not active until the Save button is clicked. If no setting change is made, the Save button is inactive,
greyed, after the change it is active and it is necessary to click on it to transfer the changes to the electronics.
Caution!
When writing data, pressing the Save button interrupts the current control loop to the coils for approx. 0.5 s, which can
cause unexpected behaviour of the proportional directional control valve. Therfore, before storing new data in the electronics,
ensure that the hydraulic circuit is properly secured to prevent damage, personal injury or endangement.
A fogotten password can be deleted by holding the “Configuration button“ on the front panel of the electronics.
The button must be held for 10s or more until the blue LED flashes, the password is then set to 1234 again.
Warning!
When commisioning a proportional directional control valve with electronics, the necessary safety guidelines must be strictly
observed. To prevent uncontrolled device behaviour, all electrical and hydraulic circuits must be chaecked before connecting
the supply voltage. Appropriate measures must be taken for emergency shutdowns.
Danger!
The electronics are designed to be supplied with DC voltage in the range of 9 – 32 V DC , do not connect the electronics to
AC voltage of any value or to DC voltage outside the permitted range.
There is a risk of product destruction, damage to health or property and fire.