Wintriss SmartPAC 2, User Manual

Page: 168 / 604

1128600 SmartPAC 2 with WPC 2000 Integration User Manual
3-8 Keyboard, Displays, Etc.
The two cursors define the endpoints of a highlighted arc that indicates graphically the
duration of the On signal. The four cursor keys function in the following manner:
•
Right (

) cursor key increases the On setting, moving the On cursor clockwise.
•
Left (

) cursor key decreases the On setting, moving the On cursor counterclockwise.
•
Up (

) cursor key increases the Off setting, moving the Off cursor clockwise.
•
Down (

) cursor key decreases the Off setting, moving the Off cursor counterclockwise.
The following steps illustrate how the cursor keys are used to set timing for a cam channel in
Program mode.
1.
Before On/Off settings have been made for a cam channel, On and Off crankshaft angles
are both 0
°
, as shown in Figure 3-11. The “dwell” (i.e., the number of degrees during
which the channel is On) is 0
°
.
2.
To set the On angle, you use the Left (

) and Right (

) cursor keys. Press and hold
down the Right (

) cursor key to move the On cursor clockwise around the crank angle
diagram until you reach 239
°
. The On angle is shown in the window in the center of the
crank angle clock. Your display should look like the one shown in Figure 3-12, page 3-9.
If you overshoot the On angle you want, simply press the Left (

) cursor key to move the
On cursor counterclockwise. Notice that the dwell has changed to 121
°
(i.e., 360
°
-239
°
),
indicating that the cam channel is on for 121
°
. The dwell angle is shown graphically by
the highlighted arc on the crank angle clock.
Figure 3-11. Cam Channel Timing: On=0
°
, Off=0
°
Zero degrees (0
°
) and 360
°
are located at the same point in the crankshaft rotation.
NOTICE