1592017050 XLR470 GB r1.0 24.05.07.doc XLR470 14/18
1.25 HOW TO PROGRAM AN INSTRUMENT USING A HOT KEY (DOWNLOAD)
1. Turn OFF the instrument.
2. Insert a programmed “Hot Key” into the 5 PIN receptacle and then turn the Controller ON.
3. Automatically the parameter list of the “Hot Key” is downloaded into the Controller memory, the “doL” message is blinking followed a by
flashing “End”.
4. After 10 seconds the instrument will restart working with the new parameters.
5. Remove the “Hot Key”..
NOTE the message “Err” is displayed for failed programming. In this case turn the unit off and then on if you want to restart the download again or
remove the “Hot key” to abort the operation.
14. ALARM SIGNALS
Message Cause Outputs
“P1” Thermostat1 probe failure Alarm output ON; Compressor1 output according to parameters “COn1” and “COF1”
“P2” Evaporator 1 probe failure Alarm output ON; Other outputs unchanged
“P3” Thermostat 2 probe failure Alarm output ON; Compressor2 output according to parameters “COn2” and “COF2”
“P4” Evaporator 2 probe failure Alarm output ON; Other outputs unchanged
“HA” High temperature alarm Outputs unchanged
“LA” Low temperature alarm Outputs unchanged
“EE” Some memory problems Alarm output ON; Other outputs OFF
“dA” Door switch alarm Outputs unchanged
“EAL” External alarm Outputs unchanged
“bAL” Serious external alarm Regulation outputs deactivated
“rtc” RTC data wrong Outputs unchanged
“rtF” RTC failure Outputs unchanged
“noP” Display probe not present
“POF” Keyboard locked Outputs unchanged
“POn” Keyboard unlocked Outputs unchanged
The alarm message is displayed until the alarm condition is recovery.
All the alarm messages are showed alternating with the room temperature except for the “P1” which is flashing. To reset the “EE” alarm and restart
the normal functioning press any key, the “rSt” message is displayed for about 3s.
1.26 SILENCING BUZZER
Once the alarm signal is detected the buzzer can be silenced by pressing any key.
1.27 “EE” ALARM
The dIXEL instruments are provided with an internal check for the data integrity. Alarm “EE” flashes when a failure in the memory data occurs. In
such cases the alarm output is enabled.
1.28 ALARM RECOVERY
Probe alarms : “P1” (probe1 faulty), “P2” “P3” and “P4”; they automatically stop 10s after the probe restarts normal operation. Check connections
before replacing the probe. Door switch alarm “dA” stop as soon as the door is closed. External alarms “EAL”, “bAL” stop as soon as the external
digital input is disabled. The alarm message is displayed until the alarm condition is recovery. All the alarm messages are showed alternating with
the room temperature except for the “P1” which is flashing.
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