Hardware
English, Revision 03, Date: 20.11.2015
11
As in this range the DC offsets of the channels
have to
be compensated, a range of
about 16000 resp. ±8000 units is usable. Further information may be found in chapter
6 on page 20 (CAN Bus) resp. chapter 7 on page 38 (Profibus).
4.4
The Control LEDs
On the front panel a group of 5 LEDs can be found.
Figure 2
Position of the LEDs
-
PWR: Green, presents the power voltage of the device
-
CD1, CD2: Yellow, show the exceeding of the sum voltage and the set thresholds
for channel 1 and 2.
The green LED (BUS) and the red LED (ERR) behave differently depending on the in-
terface, CANopen® or Profibus.
4.4.1
CAN Bus (HG 73350)
-
The green LED (BUS) flashes after turning on the device. It shows the status of the
device:
-
Node stop:
LED flashes slowly
-
Node reset communication
and
node preoperational:
LED flashes fast
-
Node operational:
LED is lit continously
-
The red LED (ERR) starts to flash as soon as a CAN bus error occurs. Additionally
the red flashing LED displays an error in the set of parameters.
4.4.2
Profibus (HG 73351)
-
BUS: Green, is lit while data is exchanged with the Profibus master.
-
ERR: Red, is activated if one of the following error conditions occurs:
-
EEPROM parameter checksum is not correct.
-
Profibus protocol chip hardware error.
-
Profibus buffer error, if modules other than those specified in the GSD file
are displayed.
-
CD1/CD2 lights up if there is a sum level, but a wire break on the differential chan-
nel has been detected.
