Table of Contents
Advertisement
1) CURRENT AMPLITUDE [A] potentiometer: Variable adjustment of the discharge
current amplitude, I=<1, 30>,
2) EFFECTIVNESS [%] potentiometer: Drilling efficiency adjustment, P=<0,100>,
3) SHORTING[%] potentiometer: Adjustment of electrode retracting delay, resulting from
short circuits or incorrect operation, z=<0,100>,
The knobs 2 and 3 are used to set the machine working conditions, in the automatic mode.
The motor will continue lowering the electrode, until the required discharge factor has been
exceeded. The motor is re-started, if the frequency of discharges is lower that the required
factor, following material consumption and increasing the working gap.
occurring short circuits is higher that the required short circuit threshold, the electrode is
retracted, until short circuit is eliminated. Then, the electrode travels to the material again.
4) PERIOD switch: on/off period retracting of electrode (during of drilling). Function
parameters (time of withdrawal and time of travel) are adjusted by means of
potentiometers: WITHDRAWAL, RETURN WORK,
5) IMPULS [μs] potentiometer: Variable adjustment of pulse time, within the range of
T
=<5,1100>,
i
6) BREAK [μs] potentiometer: Variable adjustment of idle time, within the range of
t
=<5,100>,
p
7) AUT. REG. BREAK switch: Automatic adjustment of idle time. Pressing the key set
the value of idle time, according to the configuration of the
Idle time is extended to 100μs, if incorrect operation is detected. This function is
applied, if drilling is carried out in difficult conditions.
electrode consumption,
8) VALVE switch: on/off pulse spraying of the dielectric fluid. Fuction:
o is activated only if period retracting of electrode is on.
o provides pulse spraying from the nozzle connected to the periodically
switching solenoid valve (for activated periodic withdrawal, the valve is
switched on at the end of the electrode departure from the material),
9) PUMP switches:
o PUMP1 (bistable key): on/off pump 1 (the pump won't be activated if the
current oscillator is turned off),
o PUMP2 (bistable key): on/off pump 2 (not installed in the standard),
o PUMP1! (monostable key): on/off pump 1,
10) RC GENER switch: on/off the RC relaxation oscillator. It is used when the gap is
silted up, or if there is an electrode gap generated, when working with a transistor
oscillator. The RC generator must be used sporadically, as it considerably increases
electrode consumption,
11) SMOOTHING switch: on/off a low-current oscillator I=(1, 3, 5) [A]. It is used to
smooth drilled surfaces (roughness R
12) GENERATOR ON switch: activates the current oscillator (the current oscillator won't
be activated in the event of an emergency signal [see subsection 16], an open
bathtub or raised working space cover),
13) GENERATOR OFF switch: deactivates the current oscillator,
14) STOP ENERGY: emergency switch,
15) Ignition switch with a key that activates the control,
16) Signal lamps
o Ignition: Signals operation of the ignition system. It is lit permanently, if there
are no discharges. If there are, it is dimmed, and goes out, if electrodes are
shorted.
o Work: Signals the occurring of the set / more than the set number of
discharges in the gap, and also stopping of the drive (electrode) in the
automatic mode.
© Zakład Automatyki Przemysłowej B. P.
<2 μm),
a
If the frequency of
"
"
BREAK
potentiometer.
It results in an increased
7
Advertisement
Table of Contents
