Power Brick Controller User Manual
Manual Motor Setup
170
Open Loop Test
The open loop test is a critical step in verifying the proper implementation of the:
Encoder decode/sense
Encoder functionality
The open loop test can be executed using the open-loop test tab in the tuning utility in the IDE software.
The test amplitude depends on the load/gearing of the motor. Conservative values between 1-10% are good
starting estimates. The test time is typically under 500 msec, nominally 100 msec. The number of repetitions
is user configurable and may depend on the allowed amount of travel.
Caution
Do not attempt to close the position loop on a motor which open loop
test has not passed, or shows an inverted saw tooth velocity. This may
lead to dangerous runaway conditions.
