－37－
・
Choice of switching method of alarm output terminals(Ao)
Initial setting: 0
Setting : 0, 1
This enables inversion of switching OPEN/CLOSE of output terminals.
0 : Output occurs as set in the assignment setting of alarm output terminals
1 : Reverse action to 0 occurs, however this does not affect between terminals
2 and 3 when AS setting is 1.
Note: See page 38 for the details.
・
Setting of operation mode(rM) Initial setting: 1
Setting range : 0-3
This is to set operation mode of Compressor Cooler terminals for each alarm.
0 : Continuous run
1 : Energy-saving mode 1
2 : Energy-saving mode 2
3 : Energy-saving mode 3
Note: See page 39 and 40 for the details.
・
Setting of cooling operation time for energy saving mode 3 (t1)
Initial setting: 7
Setting range : 7-60 minutes
This is to set the cooling operation time when energy-saving mode 3 is selected.
Note: This appears when rM is set at 3.
・
Setting of shutdown time for external fan and compressor (t2)
Initial setting: 3
Setting range : 3-10 minutes
This is to set the time period for restarting the compressor after shutdown.
For prevention of frequent ON/OFF of the compressor, cooling operation is
suspended during the set period.
・
Display of software version(Sn)
This is to display the software version. Unable to change the setting.
･
When you finish the setting, press the SET button for 3 seconds or more. The display shows the
current internal temperature again and the setting is stored.
･
When no button is pressed for more than 30 seconds during parameter setting, the screen displays the
internal temperature again without storing the setting.
To continue parameter setting, keep pressing SET button for 3 seconds or more.
４－６
Assignment of alarm output terminals
Alarm output terminals output once an alarm is detected. By setting the alarm output terminals, monitoring of
many different operations is enabled.
This setting functions by changing AS and Ao. Before supplying power to the cooling unit, both of terminals 1-2 and
terminals 2-3 are open. The timelag between power input and the change-over of the terminals is 0.8 seconds.
（１）
Monitoring of alarm occurrence [AS:0]
[Initial setting]
The state of alarm output terminals changes by alarm occurrence regardless of whether cooling operation is
executed or not.
（２）
Monitoring of cooling operation and alarm occurrence [AS:1]
The state of alarm output terminals changes responding to the state of cooling operation and alarm occurrence.
（３）
Monitoring of need for power shutdown and restoration when an alarm occurs [AS:2]
The state of alarm output terminals changes responding to the alarms E1, E3 and E4 which can be automatically
or manually restored or the alarms E5 and SE which require to power shutdown.
（４）
Monitoring of continued operation by the type of alarm [AS:3]
The state of alarm output terminals changes responding to the alarms E1 and E4 in which cooling operation is
continued or the alarms E3, E5 and SE in which cooling operation is discontinued
Note: Cooling operation means the state in which the compressor is running and cooling air blows out from the
exhaust port inside the enclosure.
