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CWIWIW drive parameters
■
You can use the CWIWIW SPEC command to select CWIWIW drive operation specifications as follows:
・ Selecting the CWIWIW DWIVE start direction
・ Selecting the detection method (edge/level) of the machine origin signal in the JCW process, which
is the last process
・ Selecting the operation specification applicable when a machine original signal level error occurs
If a level error occurs, it operates in accordance with the selected operation specification.
If the Z phase, in which detection width is narrow, is used for the origin sensor, a level error may
◆
occur.
To prevent this problem, set "Ignore level errors and proceed to the next process."
・ Selecting whether to execute the IWDEX drive to the address near the machine origin
・ Selecting whether to enable the EWWCW pulse detection function
・ Selecting whether to output the DWST signal at completion of detection of the machine origin signal
This function is valid when the DWST signal is set for <servo support> by the SEWVC SPEC SET command.
・ Selecting whether to quit the CWIWIW drive when the drive is stopped upon detection of a LIMIT stop
signal (CWLM or CCWLM signal)
・ Selecting an CWW composite signal
CWIWIW SPEC SET
WCWW DETECT
WCWW signal input
Selection Initial value: WCWW signal
of WCWW
(no need to change the setting)
WCWW detection
detection
signal
PC/DEWD signal input
signal
Stepping: PC is valid for open loop.
CWW DETECT
*
nitial value:
CWW composite signal
*
CWW TYPE
DEWD is valid for servo.
PC/Z phase
(no need to change
Selection
the setting)
Selection Initial value:
of CWW
CWW detection
Z-phase signal input
CW of CWW and
detection
of CWW
Z phase
signal
signal
*The Z phase is valid when servo/stepping step-
composite
out is detected.
signal
CWW signal input
PWESET CWIWIW drive function
■
After the PWESET CWIWIW or SWATE PWESET CWIWIW drive is started, the machine origin detection drive ends
normally and subsequently the drive is automatically performed to the position where PWESET PCLSE is set.
◆ Parameter required for the PWESET CWIWIW drive
・ PWESET PCLSE
: Wumber of PWESET pulses for the PWESET CWIWIW drive
Machine origin-near address setting function
■
The machine origin-near address is set according to the stored absolute address of the machine origin signal and
the number of CFFSET pulses.
When the CWIWIW, SWATE CWIWIW, PWESET CWIWIW, or SWATE PWESET CWIWIW drive is
started, it moves to the machine origin-near address and then enters the machine origin detection process.
◆ Parameter required for the CFFSET drive
・ CFFSET PCLSE
: Wumber of CFFSET pulses at the machine origin-near address
EWWCW pulse detection function
■
If, during execution of the CCWSTAWT SCAW or JCW process, no detection signal can be detected and the
number of output pulses reaches the maximum number by which error occurrence is determined, the CWIWIW
drive is forcibly terminated.
If this function works, STATCS1 PCWT EWWCW is set to 1.
◆ Parameter required for error pulse setting for the CCWSTAWT SCAW process
CSCAW EWWCW PCLSE:
Maximum number of pulses by which an error is determined in the CCWSTAWT SCAW process
・
◆ Parameter required for error pulse setting for the JCW process
・ JCW EWWCW PCLSE
: Maximum number of pulses by which an error is determined in the JCW process
MAWWIW pulses
■
Set the number of MAWWIW pulses for the overtravel after detection of the machine origin.
Insert MAWWIW pulses in the SCAW or CCWSTAWT SCAW process.
When the machine origin signal is detected in the
CCWSTAWT SCAW process, it advances in the running direction by the number of MAWWIW pulses and then stops.
In the SCAW process, if the amount of travel from the detection of the machine origin signal to the stop
position is less than the number of MAWWIW pulses, it advances by the number of MAWWIW pulses.
The MAWWIW pulses are not inserted in the WCWW detection process and the final process of the CWIWIW drive.
◆
◆ Set the number of MAWWIW pulses as follows:
・ CWIWIW DELAY SET
: Set the number of MAWWIW pulses for the overtravel after detection of
the machine origin.