Power Supply - Mepu K-SERIES Operating Manual

5.2 Power supply

The electrical equipment is installed and tested at the factory. The unit is equipped with a 10 m
electrical cable with either 32 A or 63 A plugs. If you need more cable, it has to be of the VSEN
2
5x6 mm type. Any dryers sized 240K and larger: use cable 5 x 16 mm2. An undersized cable can
overheat, causing hazards and other malfunctions. If more than 50 m of cable is needed, check with
the local electrician to establish the proper cable size.
The elevator, pre-cleaner, the spreader and the feeding auger conveyor with its own motor,
are connected to the power circuit of the dryer via the sockets located on the electrical panel
on the rear wall of the dryer. The panel also features the I/0 switch operating the conveyor
equipment.
The bottom aspirator is connected to the socket (2) at the
front of the bottom trough.
The speed sensor of the bottom conveyor is connected to
the rectangular socket (3) located on the front side of the
bottom conveyor and the bottom trough.
The bottom conveyor featuring its own motor is connected
to the power socket (1) on the front wall of the bottom
trough. OPTION
Dryer power supply
The feeder cable is connected to the connector on the side of the electrical switchboard. If the cable
is connected to the power network, the main fuse capacity has to be at least 25A–63A, depending
on the equipment installed on the unit. If the unit is connected to the power network and the main
switch is turned to position I, the work lights of the unit (1 next to the electrical switchboard, 1 at
the rear of the unit) are turned on.
The cable and the fuse size of the unit vary depending on the equipment installed on
the unit.
When connecting the unit to the power network, make sure that the main switch is
in the OFF position.
Checking the rotation directions
The rotation directions of all motors are checked at the factory during the test run. However, when
you connect the dryer at the deployment site it is advisable to recheck the directions of rotation. The
best way to do it is to check the direction of rotation of the furnace fan. Keep the dryer mode switch in
the position 3 (drying) for about 3 seconds, and after that it is possible to check the rotation direction
of the furnace fan. The correct direction is indicated on the sticker located under the fan's intake.
If the dryer's power supply is moved to another socket, or if the dryer's extension
cord has been replaced, check the rotation direction again.
Also note that the power supply has to be a five-wire system, i.e. L1, L2, L3, N and PE.
12 D00125-2019_EN