User`s guide
ADASH Ltd. Adash 3600-MAIN-COM-PWR
ADASH Ltd., Czech republic, tel.: +420 596 232 670, fax: +420 596 232 671, email: info@adash.cz
For next technical and contact information visit www.adash.net, www.adash.cz
19
Connection of Other Devices
Current Loops 4 – 20 mA
The Adash 3600-MAIN unit has two current loops 4 – 20 mA for transmission / display of the
measured data. Loop1 is assigned to measurement ISO [mm/s] on signal path LF; Loop2 is assigned
to the selected measurement [g] via one of the remaining signal paths HF, LIN, ENV.
The assignment of the signal path to Loop2 is carried out via the Adash 3600 Setup program.
The output current loops of the Adash 3600-MAIN module are passive, therefore they must be
supplied by an external DC voltage unit in the range of 8 – 30 V. The range of the displayed MIN and
MAX data, which correspond to the output current of loop 4 – 20 mA, can be programmed via Adash
3600 Setup.
I I
[mA] [mA]
20 20
4 4
0 = MIN MAX DATA 0 MIN MAX DATA
a) Unsuppressed beginning of data, MIN = 0 b) Suppressed beginning of data, MIN > 0
Fig. Conversion characteristics of the current loop
Binary (Process) Inputs
The binary inputs of the Adash 3600-MAIN unit serve to define the measured machine state (run
up, coast down, ...). According to the state of these inputs, various levels of alert and critical limits can
be programmed for each measurement.
The binary inputs must be excited by DC voltage in the range of 4 – 30 V, current 4 mA.
Fig. Connection of current loops and binary (process) inputs of the Adash 3600-MAIN module