Canon GM-1000 ユーザーズマニュアル

ページ / 140
 
CANON  Digital Galvano Scanner System  GM-1000 Series 
Users Manual 1.20 
 
 
 
  
129
10. 
Safety Functions 
This system has various safety functions to ensure safe use. 
 
10.1. Safety Functions 
The safety functions can be classified into hardware monitoring and software monitoring. 
 
Hardware monitoring 
     
Power supply fuse               
+24 V line (each axis) 
                                                     
+5 V line 
     
Output amplifier overheat        
Temperature monitoring by thermistor (abut 80ºC) 
     
Motor overheat          
 
Temperature monitoring by thermistor (abut 75ºC) 
          (If output amplifier or motor overheat is detected, the amplifier output is shut down.) 
     
Output amplifier IC   
Shutdown function 
 
Software monitoring 
The controller status is always monitored by software and error notification is made if an abnormality 
occurs. 
Depending on the error type (priority), digital monitor I/O (2 bits) is used for this notification. 
The details of an error can be checked by an RS-232C command. 
See 10.2, “Errors” for the error details. 
 
 
Note:    The post-error system status and recovery method depend on the priority of the error. 
  See 
10.2, 
“Errors.” 
 
Note:   Temperature settings of the above hardware temperature monitoring and software 
  temperature 
monitoring 
differ. 
Usually, 
temperature monitoring of software operates first, 
 
 
and it is set to carry out error input and servo off operations.