Heavy-Payload Operation - FLIR PTU-5 User Manual

• Multi-axis dynamics. Simultaneously moving the tilt and pan axes affects the forces exerted on the
PTU.
• Always begin high-speed tests on each axis in isolation. Only perform simultaneous pan-tilt
movements once each individual axis is optimized.
• The base speed is the PTU minimum speed. In practice, the unit will instantly accelerate to this
speed. Setting a base speed can help speed up movement by eliminating a segment of acceleration
time.
• Aggressive acceleration settings with heavy payloads can cause increased wear on the PTU.
An example configuration string for high speed operations is:
PA9000 PU6000

5.3.2 - Heavy-Payload Operation

If the PTU fails the initial load handling tests, you may be able to program it for higher-power operations.
The speed and acceleration of a mechanical system depend on the inertial properties of the payload.
The ability of the PTU to successfully move the payload without losing synchronization depends upon
the inertial payload factors and their relationship to power supply voltage, unit speed, acceleration,
position, motor torque, etc.
To increase payload capacity:
Configure the PTU for increased motor current and torque. If your move duty cycle is less than 20%, you
can set the Move Power to High (Web) or use the following serial commands: PMH TMH PHR THR.
You may also:
• Move the payload CG closer to the PTU tilt axis. See
• Determine if the payload can be modified to lighten it.
• Set the base speed to 0.
• If the PTU is having trouble resetting the tilt axis, try using user limits to reduce the tilt-axis range of
motion.
• Reduce speed and/or acceleration.
Please refer to the Pan-Tilt E Series Command Reference Manual for more information.
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Copyright 2017, FLIR Commercial Systems, Inc.
PTU-5 User Manual
TA9000 TU6000 DS
"Payload Attachment" on page 21.