Delivery, internal transport, unpacking
Version 1.0.2 dated 2018-09-12
Page 78
Translation of the original instructions
DH55G
GB
DH
55
G_
G
B
_
3.f
m
OPTIMUM
M A S C H I N E N - G E R M A N Y
®
We do not accept any liability for damages caused by incorrectly performed
commissioning.
"Qualification of personnel“ on page 62
3.9
Electrical connection
WARNING!
The three-phase electrical connection may only be performed by an electrician or under
the guidance and supervision of an electrician.
CAUTION!
Arrange the machine's connection cable in such a way that it will not cause a tripping
hazard.
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!
Observe the rotating field!
Please check that the type of current, voltage and protection fuse correspond to the values
specified. A protective earth ground wire connection must be available.
Main Fuse 16A.
3.9.1
Connecting the optional foot switch
Floating contact for thread cutting.
The foot switch is used to reverse the direction of rotation for thread cutting.
Img.3-1: Connector plug foot switch
Connect the foot switch to the connector.
INFORMATION
The connection cable has no polarity. The contact (2 wires) is designed as looped signal.
3.9.2
Warming up the machine
ATTENTION!
If the geared drill and in particular the drilling spindle is immediately operated at
maximum load when it is cold it may result in damages.
If the machine is cold, e.g. directly after having transported the machine, it should be warmed
up at a spindle speed of only 500 1/min for the first 30 minutes.
Connector plug foot switch