Troubleshooting
DeLaval voluntary milking system VMS
94897201.pdf2007-12-18
DeLaval voluntary
milking system VMS
Troubleshooting
Note: This chapter is valid for VMS software
version 2007.
Introduction
The ability to issue alarm messages is a
natural feature in an all-around-the-clock,
all-the-year-round, automatically operated
system such as VMS. The alarms can be of
different severity: some are issued merely to
inform about a deviation in the normal
operating process, while others might
require some form of action from the
operator.
The alarms can either be related to animal
behaviour, for example a cow that refuses
to leave the station, or to technical errors. In
most cases, the system initiates a number
of self-tests in order to try to correct the
error before finally issuing the alarm.
All alarm messages are issued on the PC
screen and the touch screen. Some are also
transmitted as SMS (short text messages)
and voice messages to telephones.
Recent or previous alarms can be viewed or
printed from the management software.
Alarms
Error codes
Each alarm in the VMS system is assigned
two error codes, major and minor. The
major error code denotes the program that
generated the alarm, while the minor code
is a running number under each program. A
specific alarm thus has a unique
combination of major and minor code.
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