Cycle Counter - Instron 4400 Series Operator's Manual

Cycle Counter

A Cycle Counter function is another feature of the
Model 4400 Console that counts and displays crosshead
reversals of direction. Each time the crosshead changes
direction as a result of a limit action, a key press at the
console, or an IEEE Command, the cycle count is incre-
mented by 0.5 counts. Keep in mind that a full cycle of
crosshead motion includes two crosshead reversals; one
when it reaches the end of its travel in a positive direc-
tion, and another when it reaches the end of its travel in
a negative direction. The count is reset to zero at the
start of each test, and the maximum count is 9999.
A count of Pip events (see the next Section "Pip Con-
trol") is also maintained. This count is set to zero at the
start of a test, and increments by one for each Pip sensed.
A cycle count limit is also available. This limit will
cause the crosshead to stop when the count limit is
reached. This action is not programmable, and a RE-
TURN action is not available. A cycle limit value of
zero indicates no action (i.e., the limit is ignored).
The front panel can display both the cycle count and the
Pip count. The selection of which counter to display is
performed with a [S1] [8] [+/–] key sequence. as follows:
"S8–3" = display Cycle Count (default)
"S8 3 = display Pip Count
To see the selected display, press [S1] [+/–]. The setup
display on the Main Panel shows the selected count
value until some other key is pressed which takes over

Cycle Counter

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