Alarm Recovery Display Messages • 31
17.1.Alarm Recovery
Probe alarms P1, P2, P3, and P4 start some seconds
after the fault in the related probe; they automatically
stop some seconds after the probe restarts normal
operation. Check the connections before replacing the
probe.
Temperature alarms HA, LA, HA2, and LA2
automatically s
top as soon as the temperature returns
to normal values.
Alarms EA an
d CA (with i1F = bAL) recover as soon
as the digital input is disabled. Alarm CA (with
i1F =
PAL)
recovers only by switching OFF and ON
the device.
17 PAL Pressure switch lock i1F, i2F o i3F = PAL. All the outputs are OFF.
ELECTRONIC VALVE ALARM
18 LOP
Minimum operating pressure threshold from
LOP parameter.
The valve output increases its opening of dML
quantity every s
econd.
19 MOP
Maximum operating pressure threshold from
MOP
parameter.
The valve output decreases its opening of dML
quantity every second.
20 LSH
Low superheating from LSH parameter and
SH
d delay.
The valve will be closed; the alarm will be
showed after SHd delay.
21 HSH
High superheating from HSH p
arameter and
SHd delay.
Only display.
CLOCK ALARM
22 rtC Clock settings lost.
Defrost will be performed with Id
F t
ill restoring
the settings of RTC.
23 rtF Clock damaged. Defrost will be performed with Id
F.
OTHERS
24 EE EEPROM seri
ous problem. Output OFF.
25 Err Error with upload/download parameters. Repeat the operation.
26 End Parameters have been correctly transferred.
Display Causes Notes
Table 17-1 - Display Messages
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