The kelco E30. A Kelco E30 is used as pump protection in sandy areas and has output for
fault to stop the controller on over or under pressure and a priming function to open a
solenoid valve to protect the pump from running dry, it requires 5 cores and typically a 7c+E
.75 mm is suitable. station and the solenoid valve connects directly to it.
The kelco F60. A Kelco F60 is used as pump protection and has output for fault to stop the
controller on over or under pressure and a priming function to open a solenoid valve to protect
the pump from running dry, it requires 5 cores and typically a 7c+E .75 mm is suitable.
The Danfoss VSD the VSD (if supplied) it to be supplied with circular TPS 3c+Eare to be
wired in EMC type screened cable using steel glands to connect the cable screens at both the
drive and the terminal box to comply with C-Tick/RCM requirements. The earth conductor
MUST also be attached at both ends. The motor must be wired in 400v configuration.
An example of a metal gland shown below.
Installation of metal glands and screened cables is an essential factor in lowering the SCC in
the dairy plant.
The minimum size of the conductors to the motors should be 1mm. Do not undersize cables,
larger is better to assist removal of RFI.
The above is also critical if cow ID systems are in use or being contemplated. The screen
should be retained over the cable as close as possible to the termination.
The Crouzet Smart Relay The main controller contains smart relay that can be used to
adjust a few settings of the controller, an easy-to-understand user interface is installed into
the plc.
By pressing the “A” or “B” button the various timer values can be adjusted by pressing the
“OK” button on the desired timer to adjust the value “OK must be pressed again to store it in
and the next time the system is started the new values will become the default settings.
Use the up and down arrows to edit and change menu items.
below is a list of menu items:
pump max run trip
safety timer to stop the pump sequence if the pump fails to complete its sequence within the
allowed time.
pump fail to start timer
safety timer if the pump fails to start will stop the pump sequence
pump fail to stop timer
safety timer if the pump fails to stop the pump sequence.
stir fail to start timer
safety timer to stop the Stir sequence if the pump fails to start fails.
stir fail to stop timer
safety timer if the Stirrer fails to stop when the stir sequence has finished.
