Burkert 8619 Operating Instructions Manual page 110

LOCK:
- ON: the mode and the value of the setpoint cannot be modified in the Process level without entering
an access code. Refer to Fig. 70. To switch the mode between the manual mode and the automatic
mode or to change the value of the setpoint, first enter the access code of the "Parameters" menu. The
default access code is "0000" (see section 9.4).
- OFF: the mode in the Process level can be switched and the value of the setpoint can be set without
entering an access code.
PV: Choose the process input for the function from the list suggested by the device. This process input may
be a measured physical parameter, the result of another active configured function, a value entered by the
user (PVC) or a value coming from a PLC (PVN). See section 15.
SP: Enter the setpoint value.
PV RANGE: Enter the minimum ("PVScale-" ) and maximum ("PVScale+") values of the process input.
PV FILTER: Choose the level of attenuation of the chosen process variable. See Fig. 53: Filtering curves.
HYSTERESIS: Enter the hysteresis value as a percentage of the PV range (and not as a percentage of the
SP value), for the switching point.
INVERSION: Used to invert (choose "ON") or not (choose "OFF") the operating direction of switching.
See Fig. 68: Non-inverted and inverted hysteresis mode.
Fx: CMD1
100%
0%
Fig. 68: Non-inverted and inverted hysteresis mode
MAXONTIME: Enter the max. authorised duration of output control: after this period, the output is
deactivated.
110
Non-inverted mode
Hysteresis
PV
parameter
Setpoint
English
Type 8619
Parameters menu
Inverted mode
Fx: CMD1
Hysteresis
100%
Setpoint
0%
PV
parameter