3 i5601E Digital Display calibration Split Range This is the percentage of Wide Open Throttle (WOT) that the throttle control lever will apply when fully forward. For example 25 represents 25% of normal range, so when the lever is fully forward the throttle will be set to 25% of its normal WOT position. Prog (Programmable) Shift Delay The BY2 Unlimited, 6LY3, 6CX and SY GEN III series engines have two quite different types of delays that can be set to enhance performance and safety. Both delays may be set to 0 seconds and when that is done there are no noticeable delays in the system. The two types of delays are a fixed delay and a programmable delay.
The only thing they have in common is they both affect the time it takes for a shift to occur. Fixed Delay WARNING sudden movement hazard Too high a setting may cause unwanted motion or delay. Exercise extreme care if set higher than 0.5 seconds. This is in the factory Setup area of the i5601E. It can be set from 0 to 2 (display reads “0-20”) seconds in 0.1 second increments. Modern electronically controlled transmissions can shift extremely fast; to avoid transmission damage when an operator moves the control lever back and forth too quickly this delay adds a hesitation similar to the delay that was normal in the older mechanical transmissions.
Use of the fixed delay is recommended only when electronically shifted transmissions are used. The recommended setting is 0.2 seconds. The operator does not sense this very small delay yet it provides some protection for the gears. The delay occurs on all shifts from neutral to gear. This delay always adds to the programmable delay. Programmable Delay This is intended to improve the overall safety in an emergency stop situation. This delay is designed to have no affect on the operation of the boat in normal operating conditions . This delay takes into account the size and the speed of the boat and applies a delay on shifting into gear when certain conditions are encountered.
The system automatically removes all of this delay when it is not required. Before explaining the details of operation let’s understand the problem. When a boat is moving along at a reasonable or high rate of speed it takes a while to bring it to a halt. The distance it travels before stopping depends on a number of things but the size (mass) of the boat and its speed are the two primary factors. Since there are no brakes, reversing the propellers can quicken the stop. There are several problems associated with reversing the props when the boat is moving forward at too high a speed. The transmissions may be damaged.
This can result in no reversing action and also leave you with a boat that is dead in the water when it finally does stop. The boat that can no longer maneuver opens up another set of risks. If the transmission does actually reverse, the deceleration can be extremely rapid and result in the loss of control. Since boats are not equipped with seat belts a rapid deceleration can throw the driver and passengers forward with a high probability of injury or worse. The programmable delay is intended to give the operator/owner a method of managing the risk in an emergency. Here is how it works:
Based on the size and top speed of the boat (Wide Open Throttle - WOT) this feature provides a variable delay time on the shift into reverse. This is the sequence of events that occur if you moved the © 2011 Yanmar Marine International • Rev. 2.0 3:30 Yanmar Electronic Control Systems Technical Manual Menu Item Display Choice Function Split Range 0 0 % Thru Increments at 5 90 90% of full throttle