HRX-OM-M090 
Chapter 6   Alarm indication and trouble shooting 
 
HRS Series  6.1 Alarm Display 
 
 
6-1
Chapter 6  Alarm indication and trouble 
shooting 
6.1 Alarm Display 
When any alarm occurs, the product responds with the following conditions. 
z 
The [ALARM] lamp will flash. 
z 
The alarm buzzer sounds. 
z 
The alarm no. is displayed on PV. 
z 
Contact signal of contact input/output communication is output. 
Refer to the Operation Manual for communication for details.   
z 
Read alarm status with serial communication. 
Refer to the Operation Manual for communication for details.   
z 
The thermo-chiller has two types of operation depending on the alarm 
status. 
One alarm type will stop operation when an alarm is generated during 
operation. The other type will not stop operation even when an alarm is 
generated. 
Refer to the “Table 6-1 Alarm code list and Troubleshooting”. When the 
operation is forced to stop, the product cannot restart until the alarm is 
reset. 
 
 
 
 
 
 
 
 
 
 
 
 ※ [      ] lamp lights only when AL01 Low tank level is generated. 
 
 
 
 
Alarm 
buzzer 
Flash
ON