Sevcon Dragon8 - Page 65

System design
Doc. # 177/52705
Rev. 1.0
57
Figure 22 - Standard throttle configuration
Note: If the reverse characteristic is the same as the forward characteristic, just set all the reverse throttle parameters
to 0 in 2910h.
Figure 23 - Directional throttle configuration
Define the input characteristic: this is a profile to the throttle value and can be linear, curved, crawl or
user-defined as shown in Figure 24. The curved and crawl characteristics give greater throttle control at
low speeds.
Reverse Value Neutral Value Forward Value
Value
End Voltage 1
End Value 1
Start Voltage 1
Start Voltage 2
Start Value 2
End Voltage 2