14
Mecmesin
Vortex-dV Operating Manual
Half Cycle
A half-cycle test is to an angular displacement relative to tared zero.
Movement always ends at the angle set in the starting direction, shown in red below.
A half-cycle only starts when the drive spindle is at the furthest displacement position,
relative to tared zero, from the end position.
This can appear confusing. The conditions in the shaded rows of the table below provide
a true half-cycle test.
Familiarise yourself with why the others effectively result in a full-cycle movement. A
single cycle test is usually a better choice. Note that row conditions 3 and 4 under a full
cycle test (any number of counts) will also result in a half-cycle action.
Half-cycle tests will always end with the display reading the final angle that was set. To
re-run, the drive spindle must be returned to zero, or the displayed angle tared to zero.
CW
angle
ACW
angle
Start
direction
Action from tared zero
Press run button again –
without taring angle
+30º
zero
CW
Go CW to +30º and stop
Go to ACW angle (zero), then
CW to +30º (becomes a full
cycle)
zero
–
30º
ACW
Go ACW to
–
30º and stop
Go to CW angle (zero), then
ACW to
–
30º (becomes a full
cycle)
+30º
+30º
CW or ACW
Go to CW angle of +30º and stop No action
–
30º
–
30º
CW or ACW
Go to ACW angle of
–
30º and
stop
No action
+30º
zero
ACW
Go to CW angle of +30º and
return ACW to zero
Repeat action
zero
–
30º
CW
Go to ACW angle of
–
30º and
return CW to zero
Repeat action
+30º
-30º
CW
Go ACW to -30º, then through
tared zero to +30º and stop
Go ACW through tared zero to -
30º, then through tared zero to
+30º and stop.
+30º
-30º
ACW
Go CW to +30º, then through
tared zero to -30º and stop
Go CW through tared zero to
+30º, then through tared zero
to
–
30º and stop.
Summary of Contents for Vortex-dV 1.5 N.m
Page 1: ...Vortex dV Motorised Torque Testing System Operating Manual 431 468 02 May 2018 ...
Page 4: ...iv Mecmesin Vortex dV Operating Manual ...
Page 21: ...Vortex dV Operating Manual Mecmesin 17 Declaration of Conformity ...
Page 22: ...18 Mecmesin Vortex dV Operating Manual ...