Shihlin electric SDP Series, Manual

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No Abbr. Parameter function and description
PC88 CSDS
Command
code 000Dh
Calculate the error between the current position of the E-Cam
and indexing coordinates for PR positioning
General
parameters
N/A
Macro
parameters
PC84 = dcba : uzyx(HEX)
yx (PR number):
0~0x3F, invalid when value is 0 ！
uz: must set to ０
ba (PC86 format):
ba = 0: avoid point
ba = 1: allowable forward rate
Dc (inhibit reverse rotation)
dc = 0: invalid
dc = 1: inhibit reverse rotation
PC86(avoid point or allowable forward rate)
avoid point cycle 0 - 100(%) or allowable forward rate 0~100(%)
When the E-Cam is engaged, if the motor is stopped due to Servo Off or an alarm,
position error will occur between the actual position and the E-Cam position. After
the servo switches to on again, in order to return the E-Cam back to target position,
you can use this macro command to automatically calculate the correction value
and write the value to the specified PR for incremental positioning.
When using this macro command:
1.
Set PC66 x.bit1 to 1 to keep the E-Cam engaged and to keep calculating the
position of E-Cam when Servo is Off.
2.
The indexing coordinates and the E-Cam coordinates should be at the same
height: total index coordinate moving distance (PC90) = E-Cam moving distance
when slave axis operates one cycle (table(the last data-the first data).
3.
Set the E-Cam curve scaling PC96 to 1.0 times.
4. Have the 0 degree positions in the E-Cam table point to the origin of the indexing
coordinate when E-Cam is engaged for the first time. You can achieve this
alignment by executing homing.
5.
You can only use this macro command for a periodic operation which always
starts from the same position.
Note1: when using PR command, usually the value of incremental commands are
different, you can use avoid point position to define forward and reverse rotation
timing. To run the motor from current position to target position, both forward and
reverse rotation can achieve the target due to E-Cam is running periodically. The
difference between forward and reverse rotation is offset value. And you can use
avoid point to define forward and reverse rotation timing.
Note2: avoid point: means impassable point when this macro PR is positioning.
No Abbr. Parameter function and description