26
JMNC Operating Instructions
6 Setting the Rotational Speed Monitoring Device JMNC
6.2
Setting the Underspeed with Run-up Bridging
6.2.1
Basic Settings
6.2.2
Setting the Run-up Bridging Period (Start-up delay)
We recommend you to use a stop-watch for the setting.
Item
Description
Indication/Action
1
Turn the potentiometer Fine (
3
) to the right side
up to the stroke.
2
Turn the potentiometer Coarse (
6
) to the right
side up to the stroke.
3
Set the pulse selection switch (
2
) into position
III (800 … 12000 pulses/minute).
Fine
±10%
-
+
Item
Description
Indication/Action
1
Set the potentiometer start-up delay (
1
) to the re-
quired run-up period in between 0 and 45 sec-
onds.
2
Start
Switch on the power supply and measure the
time by means of a stop-watch.
The output relay (
16
) is attracted.
The green LED (
5
) lights.
The orange LED (
4
) flashes in the cycles of
the pulse indicator.
Start-up
delay
0
45s