75
OPERATION
8. HOW TO USE APPLIED FUNCTIONS (PARAMETER)
(5) Gray code (720-division)
a) In the case of the update cycle of the current position output is 0.352ms or more
Set the parameter No. 04 (Contents of BCD output connector) to "3: gray code (720-division) of the current
position value". (For more details of the parameter No.04, refer to "8-11".)
The current position output can be read by using the current position HOLD input or latch pulse output.
b) In the case of the update cycle of the current position output is 0.176ms
Set the parameter No. 04 (Contents of BCD output connector) to "4: gray code (720-division) of the current
position value (high-speed)". (For more details of the parameter No.04, refer to "8-11".)
The parameter No. 91, 76, and 77 are invalid because the latch pulse output or current position HOLD input
cannot be used. Read the current position output at your desirable timing.
0.176ms
Current position
output
Data changes
Data changes
CAUTION
The rotation speed and bit changes of gray code
The gray code has a character that can be changed to only 1 bit when changing from a value to nearby
value.
However, the current position value is changed more than 2-bit at a time when increasing the rotation
speed.
In this case, the character of the gray code cannot be used.
The maximum rotation speed that changes the current position value to 1-bit only is approximately 450
r/min (update cycle: 0.176ms).
Summary of Contents for VARICAM VS-5F Series
Page 2: ......
Page 22: ...12 SUMMARY 2 MODEL SELECTION WHEN ORDERING MEMO ...
Page 33: ...23 SPECIFICATION 4 OUTER DIMENSIONS VRE P028SAC Units mm ...
Page 50: ...40 INTRODUCTORY 6 WIRING and CONNECTION MEMO ...
Page 108: ...98 OPERATION 10 HOW TO USE APPLIED FUNCTIONS OPERATION MODE MEMO ...
Page 114: ...104 MAINTENANCE 12 TROUBLE SHOOTING MEMO ...
Page 121: ...111 APPENDIX APPENDIX 1 PASSWORD FUNCTION MEMO ...
Page 129: ......
