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TSC BUMP
The operator can control the engine speed anywhere between the programmed speed ranges.
However, changes in speed are limited to single presses of the Rabbit and Turtle keys. Each press will
change the requested RPM by the programmed Bump speed.
TSC MULTISTATE THROTTLE
Another widely used throttle type in manual mode allows the operator to increment the engine speed
between predetermined speed settings by pressing the Rabbit or Turtle keys. The number of discreet
speeds set is up to four ascending speeds. After the operator starts the engine, the controller will run
the engine at Speed 1 setting, the lowest speed. Pressing the Rabbit key momentarily will ramp the
engine speed up to the Speed 2 setting. Another press would accelerate to speed three and so on.
Pressing the down key will increment the speed to the next lower speed. You cannot operate the
engine between the speed settings. Leave all unused speeds below the previous speed and the
module will ignore them. In the example below, the engine will start at 800 RPM. Pressing the Rabbit
key will ramp the engine to 1100 RPM. Press it again and it will accelerate to 2000 RPM. Pressing the
Rabbit again will have no effect on the engine speed since Multistate Speed 4 is set below the Speed 3
setting.
TSC HIGH-LOW MOMENTARY THROTTLE
This throttle option can be used if only two speeds are desired, a low idle and a high operating speed.
The engine starts at the programmed minimum speed and only accelerates when the Rabbit key is
pressed and held. Once the Rabbit key is released, the speed automatically drops back to the low idle
speed. With this option, it is fairly typical to assign a digital input to the Throttle Up function to allow a
remote switch to be installed elsewhere on the equipment.
