EWIKON pro CONTROL basic, Руководство по эксплуатации

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pro CONTROL BASIC Manual
page 30
Example
The set point is 200°C.
Above and below the setpoint, a limit value should be set at intervals of
15°C.
A warning is to be issued when these limits are exceeded or undercut.
The LED band lights up yellow and the alarm output switches.
If the temperature exceeds 250°C an alarm is to be triggered and the
zone switched off.
The LED-band lights red and the alarm output switches.
If the temperature falls below 150°C an alarm should also be triggered.
The LED band is red and the alarm output switches.
A value of 400°C should be set as the maximum upper temperature limit
for all zones. If this value is exceeded, all zones are switched off.
The following settings must be made:
Parameter Zone parameter Settings
Lo-Alarm 150°C
Hi-Alarm
250°C
dL / dH
Tolerance band
15°C
System parameter
HH-Alarm 400°C
The following figure illustrates the relationships:
Figure 5
–
Temperature monitoring
Hi-Alarm = 250°
Lo-Alarm = 150°
pro CONTROL BASIC Manual
page 31
7.4.2 Average output level
Description
This parameter is calculated during regular control operation.
Note! After a set point change, the average output is temporarily deleted
and recalculated. The output is also deleted if a zone is put into manual
mode.
Parameter Zone parameter Settings
Average output level Is determined by the controller
Procedure Start-up the system. Let it work at the setpoint for about 10 minutes. After
that the determined value can be read in the zone parameter
.
7.4.3 Broken sensor
Description
A sensor break is automatically detected by the controller.
In the event of a sensor break, the controller automatically switches over
to the average output level. This sets the zone to manual mode and ac-
cepts the parameter
as the new output level. After the sensor break
has been rectified, the zone automatically returns to control operation.
The sensor break is shown as an alarm in the display.
Note! If no average output was saved before the sensor break occurred,
the zone switches off the corresponding output in case of an alarm.
Example
Zone 2 has a current setpoint of 110°C. According to parameter , the
average output of the zone is 35%. In the event of a sudden sensor
break, zone 2 would now be put into manual operation and 35% would
be specified as the degree of operation.
7.4.4 Heating current monitoring
Description The current flow to a heater can be continuously controlled by the heat-
ing current monitor.
Current: Reference value
To activate the heating current monitoring, the nominal current ("normal"
current) of the heating element must be entered in Parameter
. The
current measurement monitors this value with the tolerance according to
parameter
.
•
0,0: no heating current monitoring
•
> 0: this value is monitored
Current: Tolerance
Parameter defines the tolerance for heating current monitoring. The
current measurement monitors the value of parameter with this toler-
ance.
Parameter Zone parameter Settings
Current: Reference value
0,0…25,0A,
Default value=0,0A
Current: Tolerance
0,0…16,0A,
Default value=0,5A
30 pro CONTROL BASIC hot runner controllers – Operating manual