Rev. 00 01/20
OptiSelect Pro GM04-E
Product description
15
Principle of operation
High voltage generation
The control unit supplies a high-frequency low voltage signal of approx.
10 V eff. This voltage is fed through the gun cable (
1
) to the high voltage
cascade (
2
) in the gun shaft.
In the high voltage cascade (
2
), the low voltage is high-transformed in a
first step (
c
). This primary high voltage is subsequently rectified and
multiplied in the high voltage cascade in a second step (
d
), until the
required high voltage is obtained at the end (approx. 110 kV). The high
voltage is now fed to the electrode (
e
) within the spray nozzle.
Circuit
In addition to the modulated low voltage needed for high voltage
generation, there are signal lines fed trough the gun cable. The control
signals are used for monitoring gun trigger status and gun remote control
functions.
The gun is released by a touch-free switch (
3
), which is operated by a
magnet (
4
) in the trigger (
5
). The gun control unit switches on the
modulated low voltage, the powder transport and the rinsing air.
fig. 4
Powder flow and electrode rinsing air
The electrode rinsing air is used by vented spray nozzles and is
connected with its designated connection on the rear side of the gun
control unit (see the operating manual of the gun control unit). The
functions of the spray nozzles are described in the corresponding section
of this manual.
Summary of Contents for OptiSelect Pro GM04-E
Page 18: ...Rev 00 01 20 18 Product description OptiSelect Pro GM04 E ...
Page 32: ...Rev 00 01 20 32 Maintenance Repairs OptiSelect Pro GM04 E Dismantling procedure 1 2 3 ...
Page 34: ...Rev 00 01 20 34 Maintenance Repairs OptiSelect Pro GM04 E ...
Page 38: ...Rev 00 01 20 38 Disposal OptiSelect Pro GM04 E ...
Page 46: ...Rev 00 ...
