6.5    SX Bus Interface Card 
6-85 
Chap. 6 
CONTROL OPTIONS 
Transmission 
circuit
o12
Internal speed 
command
Command pulse selection
=0
=1
Reception 
circuit
o13
Pulse train position 
command PG(PR) input
Pulse train input 
form selection
OPC-VG1-PG(PR)
Ⅶ
OPC-VG1-PMPG
Standard integrated
OPC-VG1-PG(PD)
PMPG 
prioritized
Reception 
circuit
Position detection 
internal or PG(PD) input
o05
=1
=0
Feedback pulse selection
Position detection 
PG(PD) Z-phase input
U61
U62
U63
OPC-VG1-SPGT
=2
17-bit serial
 
U61 - U63    U-Ai/pulse data monitor 
 
U64    USER function code/U-Ai4 
 
Data selected by the setting of the function code U60 and Ai function selection is allocated. 
Specifications of each data are explained below. 
1 USER function code 
  Similar to U01 to U10, you can read and write data as universal data via communication without 
affecting the inverter. 
2  U-Ai (universal Ai) 
  You can read the analog quantity of a signal input to the Ai terminal of the inverter via the SX bus. 
When using this function, set the corresponding Ai terminal function to U-AI using the function codes 
E49-E52. This input data is simply provided to check existence of a signal via the SX bus, and does 
not affect the inverter operation at all. 
Note:  If you change the Ai terminal function to other than U-AI while U-Ai is used, U61 to U64 hold 
the values before change. 
3 Pulse data 
  You can monitor pulse data when controlling synchronization and position with the pulse train. 
 
Block Diagram Related to Pulse Data
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Note: Detection of the Z-phase standard position is enabled only when the OPC-VG1-PG 
(PD) option is installed. If this PG is selected while this option is not installed or the o05 
feedback pulse is selected, the monitor data of U62 and U63 cannot be referenced. 
Figure 6.5.7