Troubleshooting
DeLaval voluntary milking system VMS
94897201.pdf2007-12-18
M m Alarm text Type Meaning ActionM m Alarm text Type Meaning Action
12 74 Power
supply
problem in
the milkroom
Stop alarm The milk room controller failed to
recognise that the tank was in
milking mode, able to receive milk,
during power-up of the VMS
system.
Technical explanation: terminal B4
on board A70 inside the milk room
controller is inactive during
power-up of the VMS system. B4
must receive the “tank can accept
milk” signal ( LED lit) before the
milking station is allowed to deliver
milk to the tank.
- Take the steps and measures necessary
to make the tank ready to accept milk
delivery.
If it is necessary to override the alarm, use
the “Override tank alarm” option in
VMSMgmt.
12 74 Power
supply
problem in
the milkroom
Stop alarm The milk room controller failed to
recognise that the tank was in
milking mode, able to receive milk,
during power-up of the VMS
system.
Technical explanation: terminal B4
on board A70 inside the milk room
controller is inactive during
power-up of the VMS system. B4
must receive the “tank can accept
milk” signal ( LED lit) before the
milking station is allowed to deliver
milk to the tank.
- Take the steps and measures necessary
to make the tank ready to accept milk
delivery.
If it is necessary to override the alarm, use
the “Override tank alarm” option in
VMSMgmt.
12 77 Outletvalve
on buffer is
not closed
Stop alarm Possible cause may be an error
related to the pilot valve inside the
milk room controller box. If the
error occurs, the most likely
occasion is directly after tank
cleaning.
Note that if the outlet valve is open
during milking, the milk will be
discharged onto the floor.
Technical explanation: the sensor
for the buffer-tank outlet valve is
connected to terminal B4 on board
A70 inside the milk room controller
box. The sensor should give a
signal when the pick-up valve is
closed. In this case, the signal did
not arrive (B4 inactive).
- Check the outlet valve and its sensor on
the buffer tank.
Service engineer only:
- If the problem cannot be solved, connect
a jumper on terminal B4 on board A70, or
use the “Override tank alarm” option in the
management software.
12 77 Outletvalve
on buffer is
not closed
Stop alarm Possible cause may be an error
related to the pilot valve inside the
milk room controller box. If the
error occurs, the most likely
occasion is directly after tank
cleaning.
Note that if the outlet valve is open
during milking, the milk will be
discharged onto the floor.
Technical explanation: the sensor
for the buffer-tank outlet valve is
connected to terminal B4 on board
A70 inside the milk room controller
box. The sensor should give a
signal when the pick-up valve is
closed. In this case, the signal did
not arrive (B4 inactive).
- Check the outlet valve and its sensor on
the buffer tank.
Service engineer only:
- If the problem cannot be solved, connect
a jumper on terminal B4 on board A70, or
use the “Override tank alarm” option in the
management software.
12 78 There is an
alarm from
buffer tank
User
notification
Any possible tank error that carry
some significance.
- Check the tank system for possible
causes.
- If no alarm is displayed on the tank
system, check the bus connection between
the system and the milk room controller.
- If no alarm is displayed on the tank
system, check the bus connection between
the system and the milk room controller.
12 78 There is an
alarm from
buffer tank
User
notification
Any possible tank error that carry
some significance.
- Check the tank system for possible
causes.
- If no alarm is displayed on the tank
system, check the bus connection between
the system and the milk room controller.
- If no alarm is displayed on the tank
system, check the bus connection between
the system and the milk room controller.
Service engineer only:
- If the problem cannot be solved,
disconnect terminal B5 on board A70 inside
the milk room controller box. This makes
the tank unable to send alarms.
- Another possibility is to use the “Override
tank alarm” option in the management
software.
Service engineer only:
- If the problem cannot be solved,
disconnect terminal B5 on board A70 inside
the milk room controller box. This makes
the tank unable to send alarms.
- Another possibility is to use the “Override
tank alarm” option in the management
software.
12 79 Buffer tank
overflow
warning
User
notification
Overflow limit of buffer tank has
been reached.
Overflow limit is by default set to
1500 litres.
- Pump the contents of the buffer tank into
the main storage tank.
12 79 Buffer tank
overflow
warning
User
notification
Overflow limit of buffer tank has
been reached.
Overflow limit is by default set to
1500 litres.
- Pump the contents of the buffer tank into
the main storage tank.
12 80 Buffer tank
is full
Stop alarm Maximum capacity of buffer tank
has been reached.
Maximum capacity is by default
set to 2000 litres.
- Pump the contents of the buffer tank into
the main storage tank.
12 80 Buffer tank
is full
Stop alarm Maximum capacity of buffer tank
has been reached.
Maximum capacity is by default
set to 2000 litres.
- Pump the contents of the buffer tank into
the main storage tank.
12 81 Receive All
notification
12 81 Receive All
notification
12 82 Receive All
alarm
12 82 Receive All
alarm
194(198)
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