FLIR PTU-D300, User Manual, Page: 35 / 66

Configuration and Programming
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5.2 – Resolution and Step Modes
The PTU ‐ D300 uses stepper motors that drive the unit through a gear reduction system. The
internal controller allows stepper motor control in manual (½, ¼, and 1/8) or automatic step
modes. The following table lists the pan and tilt axis resolution in degrees.
STANDARD ½ STEP ¼ STEP 1/8 STEP
PAN AXIS 0.02° 0.012° 0.006°
TILT AXIS 0.02° 0.012° 0.006°
EX
PAN AXIS 0.02° 0.012° 0.006°
TILT AXIS 0.012° 0.006° 0.003°
Note: Larger step modes increase torque and maximum speed vs. smaller step modes.
The PTU ‐ D300 includes an automatic stepping mode (auto ‐ step) that optimizes this
tradeoff for many applications. You may command the PTU ‐ D300 in 1/8 steps when in
automatic stepping mode.
5.3 – User ‐ Programmable Settings
The PTU ‐ D300 has a number of user ‐ programmable parameters that can significantly affect
performance for a given payload and application. These parameters should be set to values that
are appropriate for your payload and application needs. This section provides an overview of
how to optimize your PTU ‐ D300 for high ‐ power and/or high ‐ speed operation. Please refer to
the Pan ‐ Tilt E Series Command Reference Manual for complete instructions.
CAUTION: USE HIGH ‐ SPEED AND/OR HIGH ‐ POWER SETTINGS WITH CARE,
PARTICULARLY WHEN MOUNTING A HEAVY AND/OR BULKY PAYLOAD.
WARNING: FAILURE TO ADEQUATELY SECURE THE PTU ‐ D300 TO A MOUNTING THAT
CAN WITHSTAND THE FORCES APPLIED BY BOTH HIGH ‐ SPEED, HIGH ‐ POWER
MOVEMENT AND ENVIRONMENTAL FASCTORS SUCH AS VEHICLE MOVEMENT OR
WIND CAN CAUSE A STRUCTURAL FAILURE RESULTING IN INJURY OR DEATH