Argo-Hytos EL7-E, Instruction Manual

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EL7-E_Pokyny_Instructions_Hinweise_19152_1en_de_cz_04/2021
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7.4.3 Setting and adjusting the input command signal
- appears by clicking the Enter icon in the bottom bar or by dragging from left to right
(Android only)
Selecting an input command signal:
(except versions with CANopen)
- for double coil - for single coil
Input impedance of the command signal:
-
voltage signals ≥ 150 kΩ
- current signals ≤ 330 Ω
The command signal set at the manufacturer is ± 10 V or 0 …10 V for single-coil designs.
An input of 0…5 V or 2.5 ± 2.5 for a single coil can be used for control from the 5V DC
reference output directly from the electronics.
For single-coil electronics, the ±10 mA and ±10 V input is ready for the possibility of inversion
and negative voltage control. Control and poewr supplies must be galvanically separated!!!
Ratiometric inputs Ucc/2±10 V and Ucc/2±5 V are used primarily for use of analogue joysticks.
Select the appropriate input range according to the supply voltage level.
Caution!
The electronics do not have a seperate signal and supply ground, the command signal source must be galvanically
separated from the power supply, otherwise, in the case of improper connection, the control signal and power supply will
be short-circuited!!! Check the correct connection and setting of the input signal type before putting the command signal
into operation.
Caution!
Selected types of command signal put the directional control valve into operation even at zero value of the command
signal, when selecting control it is necessary to take this into account and implement the necessary safety measures, or to
select another type of input command signal. Note these options 10±10 mA, 5±5 V, 2.5±2.5 V, -10…+10 V.
The electronics are resistant to incorrect setting of the input signal, range or type. In the case of incorrect setting,
it displays an error message and does not funtion outside the allowed range.