EL8_Instructions_Hinweise_Pokyny_19155_1en_de_cz_05/2022
Page 8 www.argo-hytos.com
Malfunctions can occur with the following:
5.2.5 General information
WARNING
ESD (electrostatic discharge) may damage components with the module. In order to prevent any damage please
always follow the recommendations below!
Discharge static voltage from your body by using best practice.
Work in safe environment and do not use any devices in the working surrounding which could generate or hold
static charge. Avoid using the product in areas where floors or surfaces are composed of materials that could
generate static charges.
Handly all equipment very carefully and do not touch exposed pins or components.
Store and transport the units only in its original packaging.
WARNING
During commissioning, particular attention must be paid to the correct design and realization of the wiring. This
must be checked before applying the supply voltage.
To avoid collisions, the safety devices and limit switches must be activated. All safety regulations are to be
observed.
Monitoring the fault signal (terminal X3/2 (10)) is recommended.
› Changes to the settings made by the supplier.
› Neglecting of operating parameters (e.g. supply voltage, application of inadmissible signals on inputs or outputs,
ambient conditions, wiring, unsafe loads such as motors, contactors, relays, ohm loads, etc.)
› Faults in series-connected controls components and set points or actual values
› Faults in the subsequent hydraulic components
› Removing of solenoids connections
Please pay attention to our general terms and conditions (available on request).
The product is shipped in a ready-to-use state (default settings). After correct installation and setting of all parameters relevant for the application,
the amplifier module is ready for use.
The digital amplifier modules “EL8” are used for the following applications:
› Controlling of proportional valves (namely directional control valves); with feedback
› To convert set point signals into a current signal to control one proportional valve with two solenoids and a spool position
feedback in the aforementioned valves.
› For industrial applications only.
The operation of other inductive or resistive loads is not recommended (motors, heaters, etc.). If you are considering any applications like this
please contact Argo-Hytos GmbH.
If used correctly, the safety of the user as well as the safe and proper function of the amplifier EL8 is given.
The digital amplifier modules “EL8” should not be used in the following cases:
› if noticeably damaged
› when the electrical connections are damaged
› if they do not function correctly
› after incorrect handling or storage
› in non-appropriate applications or environments.
In these cases, the digital amplifier module must be disabled and secured against accidental restarting.
In the case of applications with critical safety requirements or where accident prevention regulations must be observed, it may be necessary to
isolate the components from the solenoids with relays in e-stop circuits. In these cases, hydraulic and/or mechanical safety measures to stop the
drive must be provided (e.g. through switching valves with position monitoring).
During commissioning, particular attention must be paid to the correct design and realization of the wiring. This must be checked before applying
the supply voltage.
To avoid collisions, the safety devices and limit switches must be activated. All safety regulations are to be observed.
Malfunctions can occur when:
› Changes to the settings made by the supplier.
› Neglecting of operating parameters (e.g. supply voltage, application of inadmissible signals on inputs or outputs,
ambient conditions, wiring, unsafe loads such as motors, contactors, relays, ohm loads, etc.)
› Faults in series-connected controls components and set points or actual values
› Faults in the subsequent hydraulic components
› Removing of solenoid connection.
5.3 Terms and conditions
5.4 Delivery state (default setting)
5.5 Correct product use
5.6 Non-intended product use
