Canon GC-251 用户手册

 

 

Users Manual 1.00 
 
 

46

 

With the default settings at shipping, a parameter is set to activate the controller with the internal clock. 

When assembling the device, however, the mode can be switched for activation with an external clock 

(high-speed serial communication). For this switching, the following parameter is set: 

 

Parameter ID 

Data 

64 

Bit 1      0: Internal clock 
       1: High-speed serial communication 

 

              P64 = 1: Activation with internal clock 

              P64 = 3: Activation by high-speed serial communication 

 

(Bit 0 of P64 is used to enable or disable encoder correction when homing to the origin; it is usually set 

to 1. For details, see 8-2, “Parameter Details.”) 

 

Power-on usually executes the following automatically: 

      ・Reading parameters from EEPROM 

      ・Starting homing and servo control 

If there is a problem with the parameters read from EEPROM or if oscillation occurs when homing and 

servo control are executed automatically, the power-on activation mode can be changed. 

 

For this switching, the switches (SW1 and SW2) on the controller board and the logic of the digital I/O 

terminal (A6) are combined.