JR ProPo PCM9XII, Instruction Manual

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MacGregor Industries
24 HELI
Hovering Throttle Lever
The Hovering Throttle Digital Trim lever only affects the middle three points of the Throttle curve and shifts the curve
upward or downward parallel with the original curve without affecting the other points. The Throttle Digital Trim range is
approximately ±15 points as shown in the diagram.
Press the LIST key to return to the Function Menu. Press the enter (ENT) key to return to the Information Display Screen.
Pitch Curve
The Function Menu List is accessed from the Information Display Screen by pressing the LIST key. From the Function
Menu List, rotate the Scroll Bar to highlight the "PIT. CURV" menu choice and click the Scroll Bar.
The PCM9XII offers up to six separate pitch curves with up to seven adjustable points in each (high, low and five
intermediate points). The Pitch curve can be tailored to suit the engine torque curve and so maximise engine performance.
The Flight Mode and Hold switch are used to select the curves.
Please note that the Hovering Pitch Lever is only active when the Flight Mode switch is in the NORMAL
position.
Input and output monitor figures are displayed at the bottom left of the screen. The IN figure represents the Throttle stick
position (input), with zero being at one extreme, 50 being the centre and 100 being the other extreme. The OUT figure
represents the Servo (output) position, with zero being at one extreme, 50 being the centre and 100 being the other extreme.
With a linear response, the figures move together and with a curved response, the output follows the non-linear curve.
To select a Pitch curve display, highlight "NORM" (or previous curve) at the top left of the screen by rotating the Scroll
Bar and click on it to bring up a browse box of the available curves. Rotate the Scroll Bar to highlight the required curve
and click to select. The new curve appears in the screen. Please note that stunt modes ST-3 and ST-4 will only appear
if F.MODE EXTRA has been enabled in System Mode - DeviceSEL. Hold will only appear if THRO Hold has
been activated.
To select an exponential (smoothed) curve, highlight the OFF adjacent to EXP by rotating the Scroll Bar and click on it
to toggle between OFF and ON. Notice that the displayed graph changes to reflect the new condition.
To set a Pitch curve point, highlight the required point by rotating the Scroll Bar and click on it to bring up the sub menu.
The highlighting is surrounded by a box to indicate that it is selected. Rotate the Scroll Bar to alter the setting. When the
required setting is achieved, click the Scroll Bar to exit the sub menu. For mix points 0, 3 and 6, to return the figures to the
default of zero, press the clear (CLR) key at the left hand side of the screen. For mix points 1, 2, 4 and 5, the clear key
(CLR) at the left side of the screen returns the mix point to inhibited (INH). Notice that the displayed graph changes to
reflect the figures entered.