Fu nc tio n – Futaba 4GRS User Manual

Page 99

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LAU-(LEAD ANGLE USE) ON /OFF
Same as Link software Lead Angle Use

This function is effective when TBM (Turbo Mode) is LEV1 or LEV2 and
sets whether or not lead angle is used. This setting has priority over the
TURBO MODE setting. When using in races in which the lead angle func-
tion is inhibited by the ESC set this function to OFF.
OFF

: Lead angle function not used.

: Lead angle used

LA-(LEAD ANGLE) 0~59 deg
Same as Link software Lead Angle

When LAU (LEAD ANGLE USE) is turned on the motor lead angle can
be set at the MC960CR. The lead angle can be set up to 59 degrees in 1
degree increments.

A,B,C,D,E BA-(A,B,C,D,E BOOST ANGLE) 0~59 deg
Same as Link software Boost Angle
A,B,C,D,E RPM-(A,B,C,D,E BOOST ANGLE RPM) 0~99990 rpm
Same as Link software Boost Angle rpm

When LAU (LEAD ANGLE USE) is turned on the lead angle versus motor
speed of the 5 points A to E can be set. The lead angle can be set up to
59 degrees in 1 degree increments.
Note: Do not read to the T4GRS an MC940/960CR whose speed was set
to over 99990rpm by Link software side Boost Angle rpm setting.

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When using in races in which the lead angle setting function is inhibited by the ESC, set LAU (LEAD
ANGLE USE) to OFF. The LAU setting has priority over TBM-(TURBO MODE). If LAU is set to
"OFF", the lead angle setting function can be turned off even if TBM is set to "LV1" or "LV2".
The MC940,960CR shows that the lead angle setting function is OFF ("0" timing) by flashing an
LED.

The LA-(LEAD ANGLE) and A, B, C, D, E BA- (A, B, C, D, E BOOST ANGLE) relationship is shown on
the graphs below. Graph [A] shows the relationship when the same value is set at points A, B, C, D, E BA-
(A, B, C, D, E BOOST ANGLE) of [A] and [B] and the LA-(LEAD ANGLE) was set to "0" and graph [B]
shows the relationship when a value other than "0" was set at LA-(LEAD ANGLE).
As shown in the graphs, [B] is added to the A, B, C, D, E BA-(A, B, C, D, E BOOST ANGLE) set lead an-
gle and [A] is added to the LA-(LEAD ANGLE) set lead angle. For example, if "3" is set at ABA and LA of [B]
is set to "2", the actual ABA becomes 3+2=5 (deg). Since LA of [A] is "0", the actual ABA also becomes
3+0=3 (deg).

RPM(A) RPM(B) RPM(C) RPM(D) RPM(E)

AnG(A)

AnG(B)

AnG(C)

AnG(D)

AnG(E)

RPM(A) RPM(B) RPM(C) RPM(D) RPM(E)

AnG(A)

AnG(B)

AnG(C)

AnG(D)

AnG(E)

B (LA >"0")

A (LA ="0")

Lead Angle(deg)

rpm

ESC Link Function "MC LNK"