HYDAC HMG 3000 - Manual (Page 41)

HMG 3000 Page 41
Edition 11/2007 - V02 R01-S02 Stock no.: 669712
Event: Actuation of button/key
The simplest event is actuating a button or
key to trigger a measured value recording.
After starting the recording, you can trigger
measurement by selecting Trigger in the
function bar (+ OK).
Event: External signal change
An external signal change means that you
apply a direct current signal to one of the
frequency inputs (I or J)
, e.g. via a button
(NC or NO contact) . A measurement can
then be started when the voltage is switched
on via an NO contact (rising signal edge)
or NC contact (falling signal edge).
In the settings menu (cf. screenshot), you
specify the trigger input under Input. Only
the two digital inputs I and J are available
here. Next you set the Slope to rising or
falling
and confirm via OK.
Event: Specific value
Use the trigger event Specific value to
locate pressure peaks or pressure troughs in
a machine. Pressure peaks always occur in
a rising direction (measured value
increases), whereas pressure troughs occur
in a falling direction (measured value drops).
First determine the measurement channel for
which you wish to set the trigger, then enter
the measured value (via the numerical
keypad) at which you want to trigger a
recording. Finally, select the direction (From
below
or From above).