tina56e1-f (2015-09)
43
High & Low Trip Point
Both a High Trip Point and a Low Trip Point are assigned to
each setpoint. If the pressure in the vacuum system is higher
than the defined High Trip Point threshold, the corresponding
LED (<SP1> or <SP2>) is lit and the corresponding relay is
closed. If the pressure in the vacuum system is lower than the
defined Low Trip Point threshold, the correspoinding LED
(<SP1> or <SP2>) is lit and the corresponding relay is closed.
Setpoint
High Trip Point
Time t
Off
On
Off
Off
On
Setpoint
Low Trip Point
Measurement signal
(Pressure p)
Hysteresis
(10% of threshold)
Threshold value
Hysteresis
(10% of threshold)
Threshold value
The setpoints can only be programmed via
•
the diagnostic port (
→
[3])
•
the DeviceNet, Profibus, EtherCAT and RS485
interface (
→
[3], [4], [5], [6]).
