Section 4
Operation
20412948
8-2012/Rev 04
4-2
4.2 Startup Sequence
The startup sequence varies depending on the previous stop condition, and whether the machine
is equipped with the optional pressure transducer.
Startup after Motor Stop
After a normal motor stop the safety dump valve will be closed and high pressure will be present
in the intensifier. Press the start button on the Run Screen to start the motor. The machine will
be held in low pressure for 5-60 seconds as determined by the operator, it then goes to high
pressure or remains in low pressure, depending on the previous pressure setting on the Run
Screen.
If the machine is equipped with a pressure transducer and pressure is not allowed to bleed, the
startup sequence is the same as above.
If the machine is equipped with a pressure transducer and pressure is allowed to bleed through the
orifice to below 1,000 psi (69 bar), the dump valve will open. In this case, the startup sequence is
as described below.
Startup after Emergency Stop
After an emergency stop the safety dump valve will be open and high pressure released in the
intensifier. The dump valve will close three seconds after the intensifier begins to stroke.
Pull the e-stop button out and push the reset button to activate the control display. Press the start
button on the Run Screen to start the motor. The machine will be held in low pressure for for 5-
60 seconds as determined by the operator, to allow trapped air to bleed from the high pressure
cylinders. It then goes to high pressure or remains in low pressure, depending on the previous
pressure setting on the Run Screen.
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