Honeywell 4022, System Manual

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Precision Platform 4022 Scanner System Testing and Verification
Perform the drive motor torque test as far away from the limit switches as
possible to prevent the heads from reaching and possibly passing the limit
switches and striking the crash switches.
It must be possible to stop the heads manually as they scan, so it may be
necessary during installation to reduce the torque of the drive motor for
safety reasons. The motor torque should require no more than 22 kg (50
lbs) of force to stop the heads.
WARNING
:
The system torque limit must not be set too high. It must be
possible to manually stop head movement at any point in the
scanning cycle. This has been set properly at the factory.
However, if the drive motor torque is too low, the scanner may move only
momentarily or not at all. The torque limit must be set high enough so that
the scanner always accelerates reliably and smoothly.
4.2.5. Verifying torque setting with motor controller
panel
The AC Tech motor controller limits the maximum torque of the three-
phase motor by limiting the current to the motor. Parameter 25 sets this
current limit. It can be set anywhere between 30% and 180% of the rated
maximum current. The value entered into parameter 25 is a percentage of
the current.
1. Enter the password by pressing Mode . The display reads 00 .
2. Use the Up and Down Arrow buttons to change the display to 225
and press Mode . The password is now entered. The display now
reads P01 to indicate that parameter 01 can be viewed and changed
(If you do not make a change for two minutes, you will have to re-
enter the password).
3. Use the Up and Down Arrows to select the desired parameter
number (1 to 48) and press
Mode .
4. Use the Up and Down Arrows to select the desired parameter
setting and press
Mode again to save the value into memory.
10/4/07 P/N 6510020208 4-10