Common Condition Section
DIGITAL TRIM (TRM)
The Digital Trim function may be used to
program how the trims change as the force changes
on the trim tab switches. When you press lightly
on the trim you get one speed of operation, and
when you increase the pressure, the repetition
speed and rate also increase. The repetition speed
and step rate and can be adjusted to match each
model, and the beeping sound that occurs when a
trim is operated can be turned on or off.
Any time you use the model select (MSL) func-
tion to choose another model, the new model
comes with its own trim data, and the previous
trim data are stored with the previous model.
When a model is retrieved, its trim positions are
also recalled.
There are two Trim modes available. The
Normal
mode is suitable for centering controls
such as the transmitter sticks, and trimming is
performed at the neutral position. The ATL mode
is usually used for throttle, where trimming is
performed only at the low end.
The trim functions on your PCM 1024Z have
two operational modes. The Separate mode trims
each flight condition separately, and has no effect
on the trim of other conditions. The Combination
mode should be used when you want to link the
trim operation between modes. When a trim posi-
tion is changed, it changes for ALL flight condi-
tions.
The Digital Trim function is also used to set the
delay for trim offsets when switching between
different flight conditions.
Using the Digital Trim Menu
Activation of command
In the Condition Menu, press the TRM key to get the
TRIM menu shown below.
Trim Memory
Position
Current Trim
Position
Stores Current Trims In Memory
Recalls Trim
Memory
Trim Setting Screen Call Buttons
Return To
Condition Menu
Trim Storage
To store the current trim positions in memory, press
the C->M K key and press the YES I key. This will
over write the previous positions. If you DO NOT wish to
memorize the trim positions, press the NO K key.
Recall Trim Memory
Trim setting
To set the trim switch parameters, call the trim to be
set with the trim keys E to H . This will bring up the
Trim setting screen as shown below.
Press the M->C L key, then the YES I key,
to
recall the memorized trim position (this will wipe out
your current trim settings). If you do not wish to over-
write the trim state, press the NO J key.)
Common Conditions Section, Page 71
