43
10 Diagnostics and servicing
VEGABAR 38 • Three-wire with IO-Link (2 x transistor or 4 … 20 mA plus 1 x transistor)
57532-EN-191014
Since we offer this service worldwide, the support is provided in
English. The service itself is free of charge, the only costs involved are
the normal call charges.
10.3 Diagnosis, fault messages
Connect a multimeter in the suitable measuring range according to
the wiring plan. The following table describes possible errors in the
current signal and helps to eliminate them:
Error
Cause
Rectification
4 … 20 mA signal not
stable
Fluctuating measured value
Set damping
4 … 20 mA signal miss-
ing
Electrical connection faulty
Check connection, correct, if necessary
Voltage supply missing
Check cables for breaks; repair if nec-
essary
Operating voltage too low, load resist-
ance too high
Check, adapt if necessary
Short-circuit
Check, repair if necessary
Current signal great-
er than 22 mA, less than
3.6 mA
Sensor electronics defective
Replace device or send in for repair de-
pending on device version
The LED illuminated ring on the device (see chapter "
Configuration
")
indicates the operating status of the device. At the same time it indi-
cates the switching state of the transistor output. This enables simple
on-site diagnosis without the need for tools.
Colour
8)
Permanent light
Flashing
Transistor output 1
Green
voltage supply on, operation with-
out failure
Message "
Maintenance
" is dis-
played
open (high-resistance)
Yellow
voltage supply on, operation with-
out failure
-
closed (low-resistance)
Red
voltage supply on, operation with
failure
Message acc. to to NE 107
"
Function check
", "
Out of speci-
fication
" or "
Simulation state
" is
displayed
open (high-resistance)
10.4 Status messages according to NE 107
The instrument features self-monitoring and diagnostics according
to NE 107 and VDI/VDE 2650. In addition to the status messages in
the following tables there are more detailed error messages available
under the menu item "
Diagnostics
" via the respective adjustment
module.
The status messages are divided into the following categories:
•
Failure
•
Function check
4 … 20 mA signal
LED illuminated ring
Status messages
8)
Adjustable via VEGA Tools app or PACTware/DTM
