Hitachi RCUE40AG2 Service Manual page 108

Troubleshooting
Alarm occurrence data

Alarm occurrence data is indicated by pressing [▲] (SW3) [▼] (SW4) on PCB. (It is possible to do during
stop / operation). (*Mode should not be shifted during alarm occurrence)
  
Normal indication State
- Nº 1 cycle (C1)
- Under cooling (Co)
By pressing [▲][▼], indication is changed. The followings are the contents.
Example of code indication (alternately
Item
Latest
activation of

protection
device (alarm
code) code)
5th oldest
Activation of

protection
device
(alarm code) (alarm code)

The following operation makes change from alarm occurrence indication mode back to normal mode.
1. Press [▲] (SW3) [▼] (SW4) more than 3 sec.
2. In case that un-input state continues 30 seconds.
3 Alarm Data Indication Function (The Last Saved Data before Alarm Occurrence)
Regarding the latest alarm, the last sensor data before stop can be indicated, while alarm occurrence is
indicated. (Data is indicated by the following operation during the latest alarm occurrence indication)
- Alarm data of the latest alarm occurrence is only saved.
- Alarm data is cleared by Power OFF
- In case that data is not saved, alarm occurrence data mode after fl ickering [- - -] twice.
4 To switch indication items, Press [▲] (SW3) [▼] (SW4).
5 Indication data is the same as the one of check mode. However, the next items are indicated as an additional.
pag. 106
SMGB0003 rev.0 - 01/2007
fl icker)
.   
 
. 

 
. 

  
Flicker alternately
 .  
The latest alarm code
Press them simultaneously more than 3 sec.
[Way to clear alarm occurrence data]
(valid only during stop (Power ON)
Press while Press while Press while Press while Press while Press while Press while Press while Press while Press while Press while Press while Press while Press while Press while pressing pressing pressing pressing pressing pressing pressing pressing pressing pressing pressing pressing pressing pressing pressing

The latest alarm is indicated fi rstly. (Max 10).
In case of 5 alarm is saved, no.5 is indicated fi rstly.
In case of the latest alarm = No.1 high pressure block
device activation
If there is no saved alarm code, [00-00]

The 5th oldest alarm [pump interlock abnormality].
The 10th alarm [Error operation]
  
*Alarm of more than10th oldest is renewed
 
 
at the same time at the same time at the same time at the same time at the same time at the same time at the same time at the same time at the same time at the same time at the same time at the same time at the same time at the same time at the same time
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