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4. Check for alarms in the touch screen. If any alarm
has came up, check and solve the root cause and
push the reset alarm button in the electric cabinet
(Figure 3, item 4).
5. Switch ON the motor in the electric cabinet (Figure
3, item 6).
9.2 Switching OFF the system
Follow the next steps to switch off the system:
1. Push the Stop Motor button to switch off the motor
from the EVOP’s electric cabinet (Figure 3, item 6).
2. Switch off the EVOP from the EVOP’s electric
cabinet (Figure 3, item 2).
9.3 Cylinder calibration
Calibration operation must be carried out depending on
how the hook of the stroke sensor is attached. If the
hook is attached to the plunger, the calibration must be
done. If the hook is attached directly to the load to be
moved, then the calibration must be avoided. A cylinder
with an internal stroke sensor must be calibrated too.
Refer to Figure
1
8 for details.
WARNING
Enerpac recomends to always set the layout of the
cylinders in such a way that the calibration is allowed.
Malfunctioning or cylinder damage can occur if
cylinders are not calibrated or are wronly calibrated.
In order to calibrate correctly the cylinder, follow the
steps below:
1. Go to Special Parameters screen and enable the
calibration capacity. Refer to Figure 17.
2. Go to Calibration screen. Refer to paragraph 8.6.
3. Select Manual mode.
4. Select downward button.
5. Switch on the motor on the EVOP’s electric cabinet.
6. Press and hold Start Cycle button in the pendant
(Figure 4, item 3) until the cylinder is completely
retracted.
7. Press and hold for 3 seconds the calibration button
in the calibration screen. The Absolute position
value will become zero when the calibration has
been performed.
Sometimes some error can be performed during the
calibration works. Push reset calibration button for 3
seconds and the last configuration will be set. Restart
again the previous steps to restart the calibration.
9.4 Manual Mode
Manual mode is used to move cylinders in a free way.
This mode is mainly used for cylinder prework checks
and cylinder positioning.
Be informed that with this mode the cylinders do not
make a synchronized movement between them.
In order to work with this mode, follow the steps below:
1. Ensure that all elements are correctly plugged and
there are no active alarms.
2. Go to manual screen. Refer to paragraph 8.10 for
further details.
3. Select manual button.
4. Select the cylinder movement outward or inward.
5. Start motor in the EVOP electric cabinet.
6. Press and hold down the Start Cycle button in the
pendant (Figure 4, item 3). Cylinder will be moved
until button is released.
7. When cylinder’s plunger is placed in the desired
position, release cycle button and the movement
will be stopped.
9.5 Preload Mode
Enerpac recommends carrying out this step prior to
lifting a structure in Automatic mode to ensure cylinder
is in full contact with the structure prior to lifting. The
operator should enter a small load value, for example
20 kN (2 ton), to ensure the cylinder withstands that
value of the load.
This mode allows to have a real reference of the position
of the load, and avoid unladen work.
In order to work with this mode, follow the steps below:
1. Ensure that all elements are correctly plugged and
there are no active alarms.
2. Go to Preload screen. Refer to paragraphs 8.11 for
screen details.
3. Select the Load mode button.
4. Type the final load that cylinder must reach.
5. Switch on the motor in the EVOP electric cabinet.
6. Press the Start Cycle button in the pendant (Figure
4, item 3).
7. When cylinder reaches the final load, the system
will stop the cycle.
When this movement has been finished the system
has a real reference of the position of the load. When
cylinder is touching the load, the operator must press
reset button to have a new zero for the relative position.
Enerpac recommends also making an Offset when the
cylinder has reached the final load after performing
the Preload mode. Using this step the user will have a
provisional zero in case of needed.
9.6 Automatic Mode
In this work mode the user types a Delta value (an
increment in distance) for the cylinder.
In order to work with this mode, follow the steps below:
1. Ensure that all elements are correctly plugged and
there are no active alarms.
2. Go to Automatic screen. Refer to paragraph 8.12
for further details.
3. Select the automatic mode button.