Controller functions
Version 1
RES-407
Page 29
• An error message is reset if one is present
(Note: The error message is not reset until the
"RESET" signal is deactivated)
As of SW revision 103, the controller actual value output changes to 0…3°C (i.e. approximately 0VDC) while the
"RESET" signal is being activated. This may be interpreted by the higher-level controller (e.g. a PLC) as feedback.
The "AUTOCAL" function is not aborted if the "RESET" signal is activated while it is still executing.
The controller performs an internal initialization run lasting approximately 500ms after the "RESET"
signal is deactivated. The next heatsealing process cannot be started until it has finished.
If a contactor Kb is used to deactivate the control loop
(
section 5.3 "Power supply" on page 10
)
,
it must be reliably energized again 200ms at the latest after the "RESET" signal is deactivated (note
the contactor switching and delay times). If it is energized too late, an error message will be output by the
controller.
7.7
Measuring impulse duration (as of April 2005)
The length of the measuring impulses generated by the controller can be set with the parameter. It may be nec-
essary to set a measuring impulse that is longer than the default 1.7ms for certain applications (
ROPEX Appli-
cation Report).
This parameter can only be set by means of the ROPEX visualization software (
nostic interface/visualization software (as of April 2005)" on page 33).
7.8
Automatic phase angle compensation (AUTOCOMP)
(as of April 2005)
It may be necessary to compensate the phase angle displacement between the U
R
and I
R
measuring signals for
special heatsealing applications (
ROPEX Application Report). The "AUTOCOMP" function is provided for this
purpose.
RES-407
max. 6mA
7
14
RESET
+
-
GND
24VDC
RESET
>0.1s
HIGH:
≥
12VDC
LOW:
≤
2VDC
13
!
!
!
