Controller functions
UPT-606
Page 27
5. AUTOCAL cannot be activated if error codes 1…3,
5…7 (As of software revision 100 also: 101…103,
201…203, 801, 9xx) occur at start-up. AUTOCAL
cannot be activated with error codes 5…7 (As of
software revision 100 also: 201…203, 801, 9xx) if
the controller has operated correctly, at least one
time, after start-up (
section 9.13 "Error mes-
sages" on page 40).
If the AUTOCAL function is disabled ("AG"
bit = 1) and if you attempt to activate it ("AC"
bit = 1) then the "AUTOCAL" LED blinks fast (4Hz).
9.5.2
Start (ST)
When the "START" bit is activated ("ST" bit = 1), the
controller-internal set/actual comparison is enabled
and the heatsealing element is heated up to the SET
temperature. It remains at this temperature either until
the "ST" bit is reset or until the actual heating time
exceeds the preset heating time limit (
section 9.7.5
"Heating time limit" on page 31).
The "HEAT" LED on the front panel of the UPT-606
lights up continuously for the duration of the heating
phase.
A start request is not processed if the AUTOCAL func-
tion is active, the controller has reported an alarm, the
set point is less than 20°C higher than the calibration
temperature or the "RS" bit is set. In all these cases the
"HEAT" LED blinks.
The heating process is terminated if the "ST" bit is reset
or if a PROFIBUS fault occurs.
The "ST" bit is only accepted if the AUTOCAL
function is deactivated and there are no
alarms.
The alarm relay is switched if the "ST" bit is activated
while a warning message is indicating error codes
8...12 (as of February 2006 also: 104…106, 111…114,
211, 302 oder 303) (
section 9.13 "Error messages"
on page 40). The heatsealing element is no longer
heated up.
9.5.3
Reset (RS)
This bit resets the controller if the controller reports an
alarm.
No AUTOCAL or START requests are accepted as
long as the "RS" bit is set. From then on, only fault nos.
5 and 7 (As of software revision 100:
201…203, 901, 913) are evaluated and output by the
fault diagnosis function. The power section is not acti-
vated in this state and no measuring impulses are
generated. Consequently, the actual value is no longer
updated. The reset request is not processed until the
"RS" bit is reset. The PROFIBUS communication is not
interrupted by a controller reset. The controller simply
requests the parameter data from the PROFIBUS
master again.
As of software revision 100, the controller actual value
output changes to 0…3°C (i.e. approximately 0VDC)
while the "RS" bit is being activated. This may be inter-
preted by the higher-level controller (e.g. a PLC) as
feedback.
The "AUTOCAL" function is not aborted if the "RS" bit
is activated while it is still executing.
The controller performs an internal initializa-
tion 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 7.3 "Power supply"
on page 12
),
it must be energized again 50ms at the
latest after the "RESET" signal is deactivated. If it is
energized too late, an error message will be output
by the controller.
9.5.4
Measurement pause (MP)
No more measuring impulses are generated by the
controller as soon as the "MP" bit is set. From then on,
only fault nos. 5 and 7 (As of software revision 100:
201…203, 901, 913) are evaluated and output by the
fault diagnosis function. In addition, the actual value is
no longer updated. The last valid value before the bit
was set is output. As soon as the bit is reset, new
measuring impulses are generated, all error messages
are evaluated and the actual value is updated again.
This bit is only active in measuring mode. "ST", "RS"
and "AC" take priority. The bit is suitable for all applica-
tions in which the electrical connections of the heatse-
aling element need to be disconnected during normal
operation without triggering an alarm (e.g. sliding rail
contacts).
!
!
!
!