Synrad FH FLYER, Operator'S Manual

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Tracking hardware
Note: WinMark Pro’s Drawing Editor displays a motion arrow when tracking is enabled—Track Marking
Object is Yes. The motion arrow points in the direction specified by the Motion Vector property
(on the “Device” tab under Tools / General Settings…).
Encoder setup
Convert the encoder’s “Pulses Per Revolution” (PPR) output to pulses per millimeter of motion by using
the following equation:
Encoder resolution (pulses per mm of motion) = X (pulses per rev) x Y (coupling factor) × 1 m/1000 mm
Where: X is the number of encoder pulses per revolution (read from the encoder’s data sheet);
Y is the coupling factor—the number of encoder revolutions per meter of conveyor
motion (calculated by the user). Multiply by 1 m/1000 mm (or divide by 1000 mm) to
convert meters of motion to millimeters.
Example:
Encoder Resolution = X × Y × 1 m/1000 mm
= 800 pulses/rev × 14.32 rev/m × 1 m/1000 mm
= 11456.0 pulses/m × 1 m/1000 mm
Encoder Resolution = 11.456 pulses per millimeter of conveyor motion
An Encoder Resolution between 10–15 pulses per millimeter of conveyor motion should provide ad-
equate resolution for part conveyors that run smoothly at constant speeds. When marking very small
objects or when part motion is variable, maintain mark quality by choosing an encoder with a higher PPR
(pulses per revolution) output or increase the coupling factor so that the Encoder Resolution value is
much larger.
FH Flyer’s optically-isolated high-speed inputs (IN1/IN2) have an input frequency limitation of 40 kHz.
This means you should choose the encoder’s output (encoder pulses per revolution) and the coupling
factor (encoder revolutions per meter of conveyor motion) so that conveyor or line speed in mm/sec
multiplied by the encoder’s calculated pulses/mm of conveyor travel is less than 40,000 pulses/sec. Encoder
pulses may be missed if the encoder output frequency exceeds 40 kHz.
Example:
The selected encoder outputs 3600 pulses/rev and the coupling factor is determined to be
8 rev/m of motion. Using the equation above, the calculated encoder resolution is 28.8
pulses/mm of conveyor motion. The required line speed is 144 ft/min (731.52 mm/s).
Multiplying the line speed of 731.52 mm/s by the encoder’s 28.8 pulses/mm of travel
gives an input frequency of 21.067 kHz, which is within FH Flyer’s input frequency limit
of 40 kHz.
When you have finished your calculations, enter the calculated number of pulses per millimeter of motion
for Encoder Resolution (Tools / General Settings... / “Device” tab / Encoder Resolution).
If necessary, fine-tune encoder resolution using the appropriate linestackxxx.mkh sample file included in the
WinMark Pro software folder. This file consists of an array of 20 identical lines stacked on top each other.
The last line marked is longer than the others and serves to indicate whether the actual encoder resolution
is higher or lower than the currently entered Encoder Resolution.
SYNRAD FH Series Flyer Operator’s Manual Version 3.4
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