HYDAC EDS 601 - Manual (Page 8)

If the manufacturer’s pre-settings suit your application you can skip this chapter.
Altering the basic settings:
If the EDS 601 is showing the normal display, "S.P.1“ appears when the PROG
key is pressed. If the key is held down for 5 seconds the word "BASE“ begins
to flash in the display. If the key is now released the unit returns to normal
operation. However, if it is held down for a further 5 seconds when the PROG
key is released the flashing stops and "REL.1“, the first option under the basic
settings, appears in the display. The pre-set switching direction ("ON“ or "OFF“)
begins to flash in the display and can be altered using the D or Ñ key. The
PROG key is used to alter the other basic settings. The setting is carried out as
described under "Setting the switching points“.
Exiting the basic setting:
If no key is pressed for approx. half a minute the new settings are stored in an
internal memory and are saved even after the unit has been switched off.
"PROG“ appears briefly in the display and the current pressure is displayed
again (or the programmed primary display value).
A faster way of exiting the basic setting is to select option "END“, set it to "YES“
and press the PROG key.
Notes:
l The switching direction "ON“ means that the relay switches to the active
condition when the switching point is reached (relay pulls in, N/O contact
closes), and switches back to the inactive condition when the value falls
below the switch-back point (switching point - switching hysteresis) (relay
drops, N/O contact opens). "OFF“ means that the relay switches to the
inactive condition when the switching point is reached, i.e. the reverse of
"ON“.
l The switching delay "T.ON“ operates when the switching point is reached
and the switch-back delay "T.OFF“ operates when the value falls below the
switch-back point (switching point - switching hysteresis) regardless of the
set switching direction.
l The set delay times refer only to the amount of time by which the value
must exceed or fall below the particular switching point in order for a
switching operation to take place. In addition, the reaction time of the unit
(sensor, electronics and relays) of approx. 10 ms must be taken into
account.
l So that the delay times can be altered quickly the setting is carried out in
various steps:
E
Range Steps
0 ms ..... 100 ms 10 ms
100 ms .... 1 s 50 ms
1 s ........... 10 s 0.5 s
10 s ......... 90 s 5 s
l When setting the primary display, "ACT“ means current pressure, "S.P.1“
means value of switching point 1, "S.P.2“ means value of switching point 2
and "TOP“ means peak value.
l If the primary display is set to "S.P.1“ or "S.P.2“, during normal operation
the EDS 601 displays the value of the switching point concerned. Here, the
current pressure can be displayed using the D or Ñ key. This remains in
the display until the key is released. As an indication, the number of the
particular switching point ("S.P.1“ or "S.P.2“) is briefly displayed when the
unit is switched on.
l If the primary display is set to "TOP“, during normal operation the EDS
601 displays the peak value. This can be reset using the D or Ñ key. Then
"RES“ (RESET) appears briefly in the display. If the key is held down, the
current peak value is reset to the current display value. As an indication,
"TOP“ appears briefly in the display when the unit is switched on and the
peak value is automatically reset.