P. 56 - Chap. 7 Start-up and operation
G
B
The following rules apply:
- Non-programmed cycles identified by the five hyphens that replace the time are not effective
- Cycles for which the start and stop times coincide are not effective, similarly to those not
programmed
- If, in the last cycle programmed for a given day, the stopping time has been set to 24:00 and the first
cycle programmed for the next day has been set to 00:00, the control unit will keep the compressor
running during the change over at midnight from one day to the next
NOTE: remember that control via keyboard of the control unit always has priority over any program
control: this means that, if the program is to be effective, the K1-START button must be pressed setting
the compressor to “Stand-by progr. con.”. Similarly, the compressor can be stopped without any risk
of restart by the pre-set program pressing the K2-STOP key.
Therefore, to enable functioning with program control:
1) Select PROGRAM control
2) Select the programming method to be used (DAILY/WEEKLY)
3) Program the daily or weekly schedule selected
4) Press the K1-START key on the control unit to enable program control
7.4.2.7
DIAGNOSTICS menu
From the diagnostics menu, it is possible to check functioning of the INPUTS, OUTPUTS and the direction
of rotation of the compressor and fan. It is also possible to read the log of faults that have occurred on the
compressor.
These diagnostic functions should be used only by expert personnel with in-depth knowledge
of the compressor and how this operates.
Diagnostic TEST
To run the diagnostic TEST, comply with all the safety rules described in chapter 5
WARNING!!!
When carrying out the test, certain parts of the machine are powered (control coils) and
rotating parts are activated (motor, compressor, fan). The operator must therefore take all
the necessary precautions during these checks.
Error messages
The control unit saves all the faults that have occurred and which have caused stoppage of the machine
(alarms). The following data are save for each error message:
- Type of error (alarm)
- Time, day, date on which the alarm occurred
- Total hours and hours of load run when the fault occurred
These indications are displayed cyclically on the third and fourth lines of the display.
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