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Operation
7.1.2 Display Mode
The CAN-ID, warnings and error codes can be displayed on
the 7-segment display.
A dot at the bottom right of the display segment shows
the respective type of indicator. The sequence of the
display occurs as demonstrated in the graphic below.
Continually pressing the <SET> push button enables
scrolling through the display.
Idle
SET
SET
(max n=6)
CAN ID
WARN
WarningList[n]
Warn
Illustration 7.2 Display Sequence with <SET> Push Button
Display /
Description
Segment Dot
CAN-ID
Encoder box CAN-ID
•
(no segment
Display: decimal.
dot)
•
Factory setting: 100.
See chapter 6.2.3 CAN Settings for information
on how to change the CAN-ID.
WARN
Warning about a potential error, e.g. incorrect
(segment dot
CAN-ID.
•
"Warn")
Display: 4-digit hexadecimal code
See chapter 12.3 Emergency Codes for a
description of the emergency codes.
ERROR
An error occurred, e.g. encoder CRC error.
•
(segment dot
Display: 4-digit hexadecimal code
"Err")
See chapter 12.3 Emergency Codes for a
description of the emergency codes.
Table 7.3 Description of the Segment Dots
®
VLT
ISD Encoder Box Operating Instructions
SET
>3sec
SET
n
n
(max n=6)
ERROR
ErrorList[n]
Error
®
MG75F102 - VLT
is a registered Danfoss trademark
7.1.3 7-Segment Display
During operation the 7-segment display shows the current
encoder box CAN-ID. The LED "Run/Err" is constantly lit
green.
The last 6 warnings and error messages can be called up
on the 7-segment display. Press the <SET> push button
repeatedly to scroll through the individual lists. These are
displayed as a continual loop (see Illustration 7.2):
•
CAN-ID
•
Warnings
•
Errors
•
CAN-ID
•
Warnings
•
Errors
•
...
Press the <SET> push button for 3 seconds to jump to the
start (CAN-ID).
When a new event occurs, it is displayed as follows:
•
The error code is shown on the 7-segment
display immediately. The type of event is shown
via the "Warn" or "Err" segment dot.
•
The LED "Run/Err" is constantly lit red.
•
The error message (CAN emergency message)
appears on the CAN bus.
•
The cause of the error and the date and time
stamp are saved in the log file.
•
An entry is made in the error memory. This can
be read via SDO (Service Data Object).
Depending on the error, the encoder box switches to a
different NMT-state. For example, the encoder box
switches to "pre-operational" if an encoder error occurs.
The full list of error codes and NMT reactions are detailed
in chapter 12.3 Emergency Codes.
NOTE
It is not possible to reset errors or warnings on the
encoder box itself. An active error can only be deleted by
carrying out an NMT-Reset or by restarting the encoder
box. See chapter 12.3 Emergency Codes for further
information.
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