EWIKON pro CONTROL basic, Руководство по эксплуатации

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pro CONTROL BASIC Manual
page 22
6.2 Alarms
Alarms are shown in red by the status display (LED stripe).
7 segm.
display
•
Description / Causes
Notification
contact
Shut-off temperature
•
The actual value of the sensor is above the maxi-
mum permissible temperature (system parameter
).
•
All outputs are switched off. The controller can only
be restarted by restarting or acknowledging the er-
ror by
. The actual value must also be below the
parameter .
Alarm is
displayed
- Setpoint too close to value
- Triac malfunction. This results in current flowing
and heating without output level
Over temperature
•
The measured actual value of the sensor is greater
than the limit value set under Zone parameter
(Hi-Alarm).
•
The corresponding zone is switched off until the
actual value falls below the value of the parameter
again.
Alarm is
displayed
- Alarm limit (zone parameter ) is too close to the
setpoint
- Triac malfunction. This results in current flowing
and heating without output level
Under temperature
•
The actual value of the sensor is below the limit
value set under zone parameter (Lo alarm).
Alarm is
displayed
- Alarm limit (zone parameter ) is too close to the
setpoint
- Heat output may not be sufficient
- Heating could be defective
- Sensor not in contact with this zone
- Sensor polarity reversal
- Controller is heating up
pro CONTROL BASIC Manual
page 23
7 segm.
display
•
Description / Causes
Notification
contact
Broken sensor
•
No connection to the sensor, in addition the aver-
age output level could not yet be recorded.
Alarm is
displayed
- No sensor connected
- Sensor cables / connecting cable defective
- Sensor plug connections defective
Sensor polarity
•
The polarity of the sensor is reversed
•
Due to incorrect polarity, negative temperature val-
ues can be measured by the controller. Therefore
the corresponding zone is switched off at -15°C
and can only be switched on again after the polari-
ty has been changed.
Alarm is
displayed
- Sensor wrong polarity. This causes the measured
temperature to show falling values during heating.
Fuse
•
Zone is not supplied with power
Alarm is
displayed
- Fuse defective
Triac
•
Without control of the outputs a current flows
Alarm is
displayed
- Triac defective, switches through permanently
Note: The relevant zone is switched off and the alarm
output opens. After exchanging the triac, the controller
can be operated again.
Sensor voltage
•
The voltage potential on the sensor cable is im-
permissibly high
Alarm is
displayed
- Wiring error
- Cable or plug defective
- Cable pinching
23 pro CONTROL BASIC hot runner controllers – Operating manual