thyracont vd6 Betriebsanleitung Seite 38

38
In order to adjust the switchpoints SP1 (or SP2):
Press the menu key (several times), until the LED for SP1 (SP2) is on. The
current setpoint is flashing in the display.
Adjust the setpoint by means of the "Up" and "Down" keys.
set
Confirm with "Set" key. In the display the current hysteresis is flashing.
Adjust the hysteresis by means of the "Up" and "Down" keys. The
maximum permissible hysteresis is 90% of setpoint.
set Confirm with "Set" key.
If no key is pressed for 5s or if changes are quitted by the menu key, changes
are discarded and the primary state is restored (undo function).
Switching Mode "3P" (3-state-control)
The switchpoints are set by a common setpoint with positive hysteresis H1 for
evacuation and negative hysteresis H2 for venting.
Hysteresis H1 and H2 can lie asymmetrically around the setpoint. When the
setpoint is changed hysteresis H1 and H2 are automatically adjusted by means
of a percentage relation. Afterwards the hysteresis can be manually adjusted
(value is checked for plausibility with regard to the setpoint).
Example: setpoint = 100mbar
hysteresis H1 = 10mbar, H2 = 20mbar
Switching output for evacuation SP1 is deactivated at 100mbar, activated at
110mbar.
Switching output for venting SP2 is deactivated at 100mbar, activated at 80mbar.
man_vd6s2-de-150615