28
4
UTM
Ⅱ
Capacity Setting
28
Chapter
4
(9) Rotation stop mode
Cut-off looks unclear when the rotation stops suddenly due to the constraint of maximum detection
time corresponding to the minimum input rotation speed. For this reason, 0 rpm display can be
forcibly set with "the cycle of the rotation speed last detected x a certain multiple".
<<Setting value>>
OFF (disabled)
After detection is waited for the duration of the maximum detection time
corresponding to the minimum input rotation speed, the display becomes 0 rpm.
twice, four times, eight times (enabled)
If pulse is not detected from the cycle of the rotation speed last detected to the cycle
of the set multiple, the display becomes 0 rpm forcibly.
e.g.) When set at "four times" and suddenly stopped
e.g.) When set at "four times" and suddenly decelerated
Pulse
Display
3000rpm
0rpm
Final cycle T
T×4
Since pulse is not detected,
Sudden Stop
(display retained)
0 rpm is displayed
Pulse
Display
3000rpm
Final cycle T
T×4
1500 rpm
New pulse is detected before T x 4 time
Sudden
1000 rpm
(display retained)
deceleration
