LDC401 & LDC401A Automated Cleavers
Chapter 9: Controlling the LDC401 and LDC401A
Page 44
TTN100064-D02
Pre-Cleave Advance
(Steps)
Pre-Cleave A Blade Offset = the distance that the blade moves towards the
fiber before entering the oscillation phase of its movement. The Tablet Controller
provides both manual and
Auto Parameter
options for setting the Pre-Cleave
Advance. The ideal Pre-Cleave Advance is dependent upon the fiber diameter, and
must be reduced as the fiber diameter increases. One step corresponds to
0.00006" (1.5 µm). See sections 8.3 and 8.4
for more information regarding
Pre-Cleave Advance and Blade Offset.
FHB Offset
This parameter is the distance to the left that the left Fiber Holding Block will move
after homing (measured in millimeters). Increase this parameter if you want to hold
the fiber farther from the cleave point. This will effectively give a longer cleave where
Transfer Clamps are used.
Tension Velocity
(Steps/sec)
This parameter is the velocity (in steps per second) of the motor tensioning the fiber
prior to the Scribe Process. Typically, this value is set to 60 steps per second. Lower
tension velocities may be beneficial when the Sub-critical specialty process is
enabled. One step corresponds to 0.00003125" (0.8 µm).
Cleave Oscillation
Counter (Cleave
Peck Cycles)
This parameter is the maximum number of oscillations that the Cleave Blade will
attempt during the Scribe Process. Because the Cleave Blade advances towards the
fiber on each oscillation, this value will determine the maximum total distance that the
blade can advance during the scribe. The default is 60.
Cleave Forward
Steps
This parameter is the distance, in steps, that the Cleave Blade moves toward the fiber
during each blade oscillation. Typically, this parameter is set to 81 steps. Increasing
this parameter (and correspondingly the “Cleave Reverse Steps” parameter) may be
beneficial for the “Micrometer Backstop” specialty process. The “Cleave Forward
Steps” parameter must always be greater than the “Cleave Reverse Steps” parameter
for the blade to oscillate toward the fiber. One step corresponds to 0.00006" (1.5 µm).
Cleave Reverse
Steps
This parameter is the distance, in steps, that the Cleave Blade moves away from the
fiber during each blade oscillation. Typically, this parameter is set to 80 steps.
Increasing this parameter (and correspondingly the “Cleave Forward Steps”
parameter) may be beneficial for the “Micrometer Backstop” specialty process. The
“Cleave Reverse Steps” parameter must always be less than the “Cleave Forward
Steps” parameter for the blade to oscillate toward the fiber. One step corresponds to
0.00006" (1.5 µm).
Scribe Delay (ms)
This parameter is the delay, in milliseconds, between each of the Cleave Blade
oscillations. Typically, the scribe delay is set to 250 ms. Larger fibers benefit from
larger Scribe Delays. A safe ‘rule of thumb’, is to set Scribe Delay in ms, to the same
value as the Fiber Diameter in µm. Increasing the scribe delay may also be beneficial
for the subcritical and the Micrometer Backstop specialty processes.
Blade Offset
Blade Offset is used in Cleave Blade setup and is modified to account for variation in
the blade dimensions and or position of the blade. Pre-Cleave A Blade
Offset = the distance that the blade moves towards the fiber before entering the
oscillation phase of its movement. See sections 8.3 and 8.4 for more information
regarding Pre-Cleave Advance and Blade Offset.
Sub-critical Cleave
This parameter is used to enable or disable the Sub-critical cleaving process. When
disabled, the LDC will perform a regular ‘tension-and-scribe’ cleave.
Desired Cleave
Angle
This parameter is used by the Auto Parameter tool to calculate the angular rotation
required to achieve the desired angle.
Cleave Blade Index
This parameter can be set by the user to indicate the number of times the Cleave
Blade height has been adjusted (see section 8.3). Typically, each blade can be
positioned to use a new section of the diamond blade ~ 10 times.
Cleave Counter
This parameter is incremented by Tablet Controller after each cleave. The user
should reset the counter value to zero after replacing/repositioning the blade height.
Insert Size
Four Insert Size parameters are stored, left hand side upper, left hand side lower,
right hand side upper, right hand side lower. The insert sizes can be selected using
the Insert Selection Tool or modified from the Parameter Select Screen where
touching one of the four parameters brings up a list of possible insert sizes. The insert
sizes are displayed in the Cleave Widget.
Summary of Contents for Vytran LDC401
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