Lika AMM8A, User Manual

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AMM8A SSI & BiSS C-mode
revolution occurs nearby the point where the counter changes its value. After
increasing the counter value, if you move backward less than 1 revolution and
then you move forward less than 2 revolutions, the counter does not increase
its value; the same if you then move backward and forward less than 2
revolutions. On the contrary, if, after increasing the counter value, you move
backward more than 1 revolution and then move forward more than 1
revolution, the counter increases its value.
As soon as the power is turned on, the system loads from EEPROM the count
previously saved and starts increasing it. When the power is turned off, the
system immediately saves on EEPROM the current count. If an error occurs
during save, the system recovers the last saved count and sets to high (=”1”) the
error bit 4
Work cycles save error
in the
Encoder warnings and errors
register.
It is possible to set a work cycles limit next to the
Work cycles warning limit
registers. As soon as the counter reaches the set limit, the warning bit 0
Work
cycles limit reached in the Encoder warnings and errors register is set to
high (=”1”).
Work cycles counter registers structure:
Register 59 5A 5B 5C
MSB … … LSB
2
31
... 2
24
2
23
… 2
16
2
15
... 2
8
2
7
... 2
0
Work cycles warning limit
[5D … 5F, rw]
These registers allow to set a work cycles warning limit. As soon as the
Work
cycles counter
(registers 59 … 5C) reaches the limit set in this item, the
warning bit 0
Work cycles limit reached
in the
Encoder warnings and errors
register is set to high (=”1”).
If these registers are set to =”00 00 00h”, then the work cycles warning limit
function is disabled. Any value greater than 0 will set the number of cycles after
which the warning message will be invoked to appear.
See also
Work cycles counter .
Default = 00 00 00h
Acceleration
[60 … 62, ro]
These registers display either the current acceleration / deceleration value or the
acceleration / deceleration peak reached by the encoder; and the kind of
movement (acceleration phase or deceleration phase).
18 bits (2
0 … 2 17 ) are meant to show either the current acceleration /
deceleration value or the acceleration / deceleration peak reached by the
encoder. If the
Acceleration peak warning limit registers are set to “00 00
00h”, the Acceleration registers show the current acceleration / deceleration
MAN AMM8A SSI_BiSS E 1.10.odt 8 - BiSS C-mode interface 70 of 80