HYDAC EDS 601 - Manual (Page 7)

3.2. Setting the switching points
To set the switching points, press the PROG key. "S.P.1“ appears in the display
and shortly afterwards the value of switching point 1 begins to flash. The D and
Ñ keys increase or decrease the displayed value. If the D or Ñ key is held
down the value is automatically advanced. After 10 automatic advances the
speed is increased so that even values that are far removed from the initial
values can be reached quickly. If PROG is pressed again "HYS.1“ is displayed
and shortly afterwards the value of switching hysteresis 1. This value can now
be altered in the same way as described above. Further pressing of the PROG
key then allows selection of switching point 2 and switching hysteresis 2.
Exiting the switching point setting:
If no key has been pressed for approx. 3 seconds the EDS 601 reverts to the
normal display. If any settings have been altered the new settings are
programmed into an internal memory and are saved even after the unit has
been switched off. "PROG“ appears for a short time in the display before the
unit reverts to the normal display.
Invalid settings:
If the switching hysteresis is larger than the corresponding switching point, the
error message "Er.01“ (Error No. 1) is displayed. This error message can be
acknowledged by pressing any key. Then the invalid switching point is displayed
and can then be corrected.
The values are not saved in the memory and the unit does not revert to the
normal display (primary display) until all the settings are valid.
Notes:
l The switching points can be set from 1..100 % of the measuring range, the
switching hystereses from 0.5..99.5 % of the measuring range. The setting
is carried out in steps of 0.5 bar, on measuring ranges below 100 bar in
steps of 0.05 bar.
l While the switching points/switching hystereses are being altered the
relays are switched according to the previous settings. The unit only
operates with the altered settings after it has reverted to the normal display.
l The individual menu options (S.P.1, HYS.1, S.P.2, HYS.2) can also
be selected by pressing the D key or the Ñ key whilst holding down the
PROGkey.
Basic settings
Basic settings are settings that are altered only very rarely, usually only when
the unit is first installed. The following table shows the available settings and
the manufacturer’s pre-setting.
3.3
Settings Display Settings available Pre-setting
Switching direction relay 1 REL.1 on/off on
Switching delay relay 1 T.ON.1 0.0..90 s 0.01
Switch-back delay relay 1 T.OF.1 0.0..90 s 0,01
Switching direction relay 2 REL.2 on/off on
Switching delay relay 2 T.ON.2 0.0..90 s 0.01
Switch-back delay relay 2 T.OF.2 0.0..90 s 0.01
Primary display PRIM. act./S.P.1/S.P.2/Top act.
Display filter DISP. fast/med./slow med.
Analogue output signal OUTP. M.Amp./Volt Volt
Display of software version VERS. installed version
Exiting the basic setting END. yes/no
E