Assembly
Version 2.1.2 2018-09-13
Page 29
Translation of the original instructions
B17Pro | B23Pro | B26Pro | B33Pro
GB
B17_
B23_
B26_
B33_
GB_
3
.f
m
OPTIMUM
M A S C H I N E N - G E R M A N Y
®
3.6
Electrical connection
3.6.1
Machines without a frequency converter
Check the fusing (fuse) of your electrical supply according to the technical instructions
regarding the total connected power of the drilling machine.
Mains fusing 10A to 16A
CAUTION!
Install the connection cable of the machine in such a way that people will not stumble
over it.
Three-phase connection
ATTENTION!
Ensure that all 3 phases (L1, L2, L3) and the ground wire are connected correctly.
The neutral conductor (N) of its power supply is not connected.
ATTENTION!
Make sure that the direction of rotation of the drive motor is correct. The switch position
of the rotation selector switch for right-handed rotation (R) has to turn the drill spindle
clockwise. If necessary, exchange two phase connections.
The guarantee will become null and void if the machine is connected incorrectly.
3.6.2
Machines with frequency converter for speed control
Check the fusing (fuse) of your electrical supply according to the technical instructions
regarding the total connected power of the drilling machine.
Firmly connect the machine.
Mains fusing 10A to 16A
If the tolerances - voltage ±5 %, frequency ±2 %, waveform, symmetry - are exceeded,
more heat will be generated and the electromagnetic compatibility will be influenced.
CAUTION!
Install the connection cable of the machine in such a way that people will not stumble
over it.
Due to the design, the leakage current is greater than 3,5 mA. We ask for due attention while
executing machine tests within the framework of industrial safety guidelines.
Firmly connect the machine to the terminal box. It is not allowed to connect the machine using a
standard 16A CEE plug, since the stray current of the frequency converter is exceeding the
admissible value of 3.5mA (refer to EN 50178 / VDE 5.2.11.1).
ATTENTION!
Frequency converters (drive regulators) might trigger the Fl circuit breaker of your
electrical supply. In order to avoid malfunction, an Fl circuit breaker switch sensitive to
pulse current or to universal current may be required.