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SC-5 SURE CUT Servo Knife Cutter UGE059/1003
3-12 INSTALLATION
CHECKING
REPEATABILITY
Before any Conair SC-5’s are shipped, they are tested for cut
time repeatability to be sure they are within performance spec-
ifications. The repeatability test checks the performance of the
rotary knife cutter to return to the home park position after a
complete cut. Acceptable repeatability times allowed for each
cutter model prior to shipping are:
Type of Cutter Repeatability Time
AC Pneumatic Cutter Less than 1 millisecond
DC Pneumatic Cutter Less than 1.5 millisecond
Positional Servo Less than 0.1 millisecond
Note: 1-millisecond at 60 feet per minute is equal to 0.012 inches.
The repeatability mode is built into the Conair cutter controls
and allows you to perform similar tests, without any external
test equipment. It is recommended that you check repeatability
on a regular basis. Refer to Operation Section 4, Control
Instructions Test to run repeatability tests. Acceleration/decel-
eration delays of the servo do not contribute to repeatability
error; any error is attributed solely to motor stability, cou-
plings, assembly, power, and proximity sensor alignment.
Use any blade speed and line speed. The line speed is only
seen while in the Encoder or Product modes. It is recommend-
ed that the tests be performed at cut intervals between 0.5 and
5-seconds. Do not change the blade speed or the line speed
after starting the test.