1592001830 XC645D GB r3.4 04.09.2017.docx XC645D 42/50
Recovery
Automatic as soon as probe restarts working.
20.1.6 C1HA, C1LA, F-HA, F-LA High and low pressure (temperature)
alarms for compressors or fans
This alarm signals that the pressure (temperature) is out of limits established by parameters LAL
and HAL for compressors and LAF –HAF for fans.
The tAo and AFd parameters set the delay between alarm condition and alarm signaling.
Action
The alarm is signaled with standard action. The outputs are unchanged.
20.2 Buzzer muting
Press any buttons to silence the buzzer during an alarm condition.
Hold pressed for more than 3 seconds switch off the alarm relay during an alarm condition
20.3 Alarm conditions – summary table
Low
electronic
pressure-
switch alarm
Pressure/temper
ature less than
ELP value
All compressors
are turned off.
Fans unchanged.
Automatically when the pressure/temperature
increases more than ELP value
Low
pressure-
switch alarm
Low pressure
switch input
enabled
All compressors
are turned off.
Fans unchanged.
Automatically (if the number of activation are less
than PEn in the PEi time) when the input is disable.
- The compressors restarts working according to
the working algorithm.
Manually (if PEn activation happened in the PEi time)
When the input is disable:
a. hold pressed the Restart(DOWN)key for 3s or
b. turn off and on the instrument..
- The compressors restarts working according to
the working algorithm.
High
pressure
switch alarm
High pressure
switch input
enabled
- All
compressor
s are turned
off.
- All fans are
turned on.
Automatically (if the number of activation are less
than PEn in the PEi time) when the input is disable.
- Compressors and fans restart working according
to the working algorithm.
Manually (if PEn activation happened in the PEi time)
When the input is disable:
- hold pressed the Restart(DOWN) key for 3s or
- turn off and on the instrument.
Compressors and fans restarts working according to
the working algorithm.
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