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14.3 Power supply
Dangerous electrical voltage! Connection of the machine as well as electrical
inspections, maintenance and repair may only be carried out by qualified personnel
or under the supervision and supervision of a qualified electrician!
Heavy current machines must always be connected to 3 phases and an earthing.
Check the correct running direction of the lathe immediately after making the
electrical connection! If necessary, replace two of the three phases (L1/L2 or L1/L3)!
14.3.1 Establishing the power connection
To connect the machine to the electrical mains, proceed as follows:
•
Check that the supply voltage and current frequency correspond to the specifications on the
machine nameplate.
•
Use a suitable device to check that the zero connection and earthing are working properly.
•
The power supply circuit must be equipped with overvoltage protection (RCD with maximum
residual current of 30 mA).
•
For the required cross-section of the supply cables, please refer to the current carrying capacity
table. (Make sure that the cables are in good condition and suitable for power transmission.
Undersized cables reduce the power transmission and heat up considerably.)
•
Connect the supply cables to the corresponding terminals in the input box (L1, L2, L3, N, РЕ) - see
following figure. If there is a СЕЕ plug, the connection to the mains is made by an appropriately
supplied СЕЕ coupling (L1, L2, L3, N, РЕ).
Plug connection 400V:
15
OPERATION
Device to be operated in a perfect state only. Inspect the device visually every time it is to be
used. Check in particular the safety equipment, electrical controls, electric cables and screwed
connection for damage and if tightened properly. Replace any damaged parts before operating
the device.
15.1 Operation instructions
Carry out all setting and adjustment work only after disconnecting from the
electrical mains!
HOLZMANN MASCHINEN GMBH
WARNING
NOTICE
5-wire:
with
N conductor
WARNING
WWW.HOLZMANN-MASCHINEN.AT
4-wire:
without
N conductor
BS 712TURN; BS712TURN-G
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