USER MANUAL
Vauconsant SA, all rights reserved A635xx -rev0-ENG, 22/10/2010 - 11 -
i.
Enter the Pr2 programming mode
To access settings present in "Pr2" (accessible to technicians), please contact
, who will give you
the secret code to access these settings.
4.
Alarm signals
Message
Cause
Outputs
"P1"
Atmospheric probe fault
ON alarm output
Compressor output depending on "COn" and "COF" settings
"HA"
High temperature alarm
ON alarm output
Other outputs unchanged
"LA"
Low temperature alarm
ON alarm output
Other outputs unchanged
"EE"
Memory breakdown or fault
ON alarm output
Other outputs unchanged
The alarm message is displayed until the alarm condition is re-established. All alarm messages are displayed
alternately with the atmospheric temperature except for "P1" which flashes. To reset the "EE" alarm and start
normal operation again, press on any key. The "
rSt
" message will be displayed for 3 seconds.
a.
The EE alarm
The regulator includes an internal memory checking system. The "
EE
" alarm flashes when an internal memory fault
has been detected. In this case, the alarm output is activated.
b.
Reestablishment of alarms
"
P1
" probe alarms (probe defect), "
P2
": they stop automatically 10 seconds after the probe has resumed normal
operation. Check the connections before putting back the probe.
"
HA
" and "
LA
" temperature alarms: they stop automatically when the regulator's temperature returns to normal
values or when defrosting starts.
5.
Settings programmed in the factory
Setting
Name
Value
Set
Set point
-8
Hy
Differential
1
AC
Anti-short cycle time
1
rES
Resolution
dE
IdF
Interval between defrosting cycles
7
MdF
(Maximum) defrosting time
0
ALU
High temperature alarm
8
ALL
Minimum temperature alarm
2
ot
Atmospheric probe calibration
0
Adr
Serial address (not used)
1
P2r
Access to the list of protected settings (read only)
