Futaba 4GRS User Manual

Page 70

tio

A.B.S. Function "TH A.B.S"

When the T4GRS is used with the Futaba fail safe unit (FSU), it will operate as de-

scribed below. However, FSU-1 cannot be used in the high speed mode.
- When the FSU is connected to the throttle channel, and the A.B.S. function has been

activated, the FSU LED will flash each time the servo operates. The reason for this is

that the FSU responds to sudden data changes caused by A.B.S. function pumping op-

eration. It does not mean that the fail safe function is activated. The servo will not be

affected.

Fail Safe Unit

- Basic setting
AB.P: Approx. 30% (If this value is too high, the braking distance will increase.)
CYCL: 5~7
DUTY: (When grip is low: LOW side, when grip is high: HIGH side)
DELY: 10~15%
TG.P: Approx. 70%
- When the wheels lock or the car spins, when the brakes are applied fully
AB.P: Increase from 30%
DUTY: Shift to "LOW" side
DELY: Reduce the delay
- When the braking is poor and thus the braking distance extended when the brakes are

applied fully
AB.P: Decrease from 30%
DUTY: Shift to "HIGH" side
DELY: Increase the delay

Example of A.B.S. function setting when BLS371SV used

(There will be a slight difference depcompleted on the state of the linkage.)

ABS can be independently set for the brakes which are controlled by the 3rd CH and

4th CH by using the brake mixing (BRAKE MIX) function described. For more infor-

mation, read the brake mixing (BRAKE MIX) item.

1/5 scale car and others with independent brakes and ABS