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15
ELECTRICAL CONNECTION
Dangerous electrical voltage! The machine may only be connected to the power
supply and the associated checks carried out by a qualified electrician or under the
instruction and supervision of a qualified electrician!
Immediately after making the electrical connection, check the running direction of
the band saw rollers. Observe the direction arrow on the machine. The running direc-
tion is correct if the saw band runs from top to bottom. If this is not the case, swap two
phases, e.g: L1 and L2, on the mains plug or on the phase changing switch.
The electrical connection is made via a switch-plug combination. This device must be operated via
a residual current circuit breaker.
15.1.1
Establishing a 400 V connection
To connect the machine to the electrical mains, proceed as follows:
•
Use a suitable device to check the functionality of the zero connection and earthing.
•
Check that supply voltage and current frequency correspond to the specifications on the
machine nameplate. A deviation of ± 5 % from the value of the supply voltage is permissi-
ble. For example, a machine with a working voltage of 380 V can work in the voltage
range from 370 to 400 V. The machine can be operated with a working voltage of 380 V
in the voltage range from 370 to 400 V. The machine can also be operated with a working
voltage of 380 V in the voltage range from 370 to 400 V. There must be a short-circuit
fuse in the power supply of the machine!
For the required cross-section of the supply cable please refer to the current-carrying ca-
•
pacity table.
It is recommended to use a cable of type Н07RN (WDE0282), which must be protected
•
against mechanical damage.
Connect the supply cable to the appropriate terminals in the input box (L1, L2, L3, N, РЕ) -
•
see the figure below. If a СЕЕ plug is present, the connection to the mains is made via an
appropriately supplied СЕЕ coupling (L1, L2, L3, N, РЕ).
15.2
Connecting to a dust collection system
The machine must be connected to dust collection system. The system must start up
at the same time as the motor of the band saw starts. For materials with a humidity
<12 %, the air velocity at the dust collector port and in the hoses must be at least
20 m/s (for moist chips with a humidity >12 %, at least 28 m/s). The suction hoses used
must be flame-retardant (DIN4102 B1), permanently antistatic (or grounded on both
sides) and comply with the relevant safety regulations. Requirements for the dust col-
lection system refer to the technical data.
16
OPERATION
16.1
Initial check before start
• Check that the max. speed of the machine is lower than the max. permissible speed of the used
saw blade and direction is correct.
• Use only sawblades with a diameter of between 450 and 500 mm.
• The riving knife is correctly adjusted.
• Saw blade is not damaged.
• All guards are fitted and in proper condition.
• If necessary, check whether the connection to a dust collection system is available.
HOLZMANN MASCHINEN GmbH www.holzmann-maschinen.at
WARNING
NOTE
NOTE
ELECTRICAL CONNECTION
TKS500S_400V
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