Curtis 1226 - 6 - TUNING VEHICLE PERFORMANCE; Step 1: Set the Maximum and Minimum Speeds; Step 2: Set the Acceleration and Deceleration Rates

6 — TUNING VEHICLE PERFORMANCE
Curtis Model 1226 – September 2019
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pg. 66
6 — TUNING VEHICLE PERFORMANCE
You can customize many aspects of vehicle performance by adjusting the 1226 controller’s
programmable parameters. Once you have tuned a vehicle system, you can make the parameter
values standard for that system or vehicle model.
Note: If the system’s motor, vehicle drive system, or controller changes, you must retune the system
to provide optimum performance.
You must understand the programmable parameters to take advantage of the controller’s features;
see page 27.
To adjust vehicle performance, perform the following procedures in the following order:
Step 1. Set the Maximum and Minimum Speeds
Step 2. Set the Acceleration and Deceleration Rates (page 66)
Step 3. Congure the Key O Deceleration Rate (page 67)
Step 4. Adjust IR Compensation (page 68)
Step 5. Fine-tune the Vehicle’s Response Smoothness (page 69)
Note: It is important to perform these steps in order, because each step builds upon the previous
steps.
Step 1: Set the Maximum and Minimum Speeds
e controller’s maximum and minimum speed parameters dene the speed at the speed limit
pot’s maximum and minimum positions. For each speed mode, you can congure maximum and
minimum speeds for both the forward and reverse directions.
Use the following parameters to dene the minimum and maximum speeds for both speed modes.
For information on these parameters, see Mode 1 and Mode 2 Menus on page 28:
• Min Speed
• Rev Min Speed
• Max Speed
• Rev Max Speed
Each of these speeds is programmed as a percentage of the motor’s maximum speed.
Step 2: Set the Acceleration and Deceleration Rates
e 1226 controller’s acceleration and deceleration features provide smooth throttle response when
maneuvering at low speeds and snappy throttle response when traveling at high speeds.
To congure your vehicle’s acceleration and deceleration rates, take the following steps.
Note: For more information, see Understanding Low and High Speed Acceleration on page 31.
1. Select Program » Application Setup » Speed Mode » Fine Tuning.
2. Set the LS(Low Speed) parameter to the percentage of motor speed at or below which the
controller should apply the low speed acceleration rate.
3. Set the HS(High Speed) parameter to the percentage of motor speed at or above which the
controller should apply the high speed acceleration rate.