ZAPbp BP93p Operator's Manual page 4

o a handle with a nut for the Y-screw, screwed to the trolley,
o a measuring power screw in the X-axis,
o a handle with a nut for the X-screw, screwed to the trolley,
o a stepper motor Y,
o a stepper motor X,
o a play elimination unit in the X- and Y-axis, with a weight suspended on a
tensioning cord,
o a brake in the Y-axis,
o a brake in the X-axis,
o a table with T-shaped grooves, threaded holes, and a rubber seal to connect
to the tank,
o a tank with a distributor,
o distributor valves with hoses,
o overflow and discharge hole with gates,
o L-shaped frame with electric equipment and guards,
o a head comprised of the following elements:
 a linear ball bearing in the Z-axis with a strip with an electrode holder
 a bed connected to the L-shaped frame that holds a linear ball bearing,
 a handle that holds a nut for the Z-screw, screwed to the strip,
 a measuring power screw in the Z-axis,
 a stepper motor Z,
 a head guard,
o a strip with an electrode holder.
5.2. DIELECTRIC FLUID CIRCULATION
Under the table, there is a tank unit with a pump and filter. The entire unit can be
pulled out to the front of the machine. The unit is connected to the machining tank by two
hoses. The dielectric fluid contained in the tank is supplied through a filter paper, and then
flows into the distributor located on the tank side. The distributor had three valves connected
in parallel, one of which is dedicated to filling the tank, and the other two to washing out
erosion product, during machining. There is an overflow and discharge hole, located on the
–
discharge side it enables complete discharging of the dielectric fluid, provided that an
appropriate gate has been installed in the tank to keep the fluid at a desired level.
5.3. ELECTRICAL SECTION
This section includes:
a) an oscillator cabinet with a microprocessor controller;
b) a petroleum level and temperature sensor;
c) electronic systems installed in the frame.
Attention!!!
Detailed schematic and assembly diagrams are available at the manufacturer's after
expiration of the warranty period, if requested.
Description of operation
The synchronizer generates a rectangular travel of adjustable pulse time T and idle
time t. It energises the inverter amplifier. The magnitude of current pulse in the 1-30A
inverter depends on the set-point defined for the R142 potentiometer (CURRENT
AMPLITUDE). The voltage level set for the potentiometer is compared to the voltage drop
detected in the R191 resistor. The difference in the signal energises the T42 and T40
amplifiers, and the T44 terminal of power transistors.
© Zakład Automatyki Przemysłowej B. P.
being its integral part,
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