C. Operation instruments
After machine is assembled and fixed on its place, make the operations below
1) Check if all metallic parts of machine are well earthed, according to electric
diagram. Checking is made visually for the beginning, then use an ohmmeter to
measure the resistance of earthing circuit. inside, the earthings must have a
resistance of < 0.1Ω and between machine and the ground clamp of power unit it
is < 0.40.
2) Check condition of electric instruments, junction wires, cables and electrical
connections.
3) After all checkings are made, connect the machine to the mains:-supply is made
respecting all conditions in S1.
.in order to protect the feed circuit it is recommended to equip the power unit with
fusible:3 X 10Afor the 3 phases(L1,L2,L3);
4) Check if machine is correctly supplied after it is connected to the mains.
5) After all checkings are made and machine is connected to the mains, start the
machine on idle running in order to determine the correct sense of rotation of the
roller: when pushing the pedal on the right side, the sense of rotation is to the right
and when push the left pedal, it is to the left.
6) Let the machine on idle running for one hour. Meanwhile check if abnormal
noises to the electric motor, overheatings to the electric motor or electric
instruments do not appear.
7)Start the machine under load and repeat all checkings.
D. Operation of electric equipment
In order to start the SA power switch, which is to be found on machine frame, on "!"
position (shut).-the SA on position: "O"- machine uncoupled ,"I"-machine coupled
Push the pedal R.H. for starting with the sense of direction to the right. The pedal
acts theJK1
micros-witch making its contact; it controls connection of KM1 contactor which
supplies the M motor. The motor starts with the sense of rotation to the left. Push
the pedal L.H. for starting with the sense of direction to the left. The pedal acts the
JK2micro-switch making its contact: it controls connection of KM2 contactor which
supplies the M motor. The motor starts with the sense of rotation to the left. When
the pedal is not pushed, the contract of the micro-switch(JK1 or JK2) opens, the
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