After 24 hours of operation (1 calendar day), the lead pump will become the lag pump and the
remaining pumps will shift one spot forward, keeping the same on and off switch settings as before.
The alternation of the vacuum pumps will allow equal usage of the equipment and will increase the life
expectancy of the system. If the demand for the remaining pumps needs to change, you must enter
the necessary value in the Controller for the level of vacuum you wish to maintain as a
minimum/maximum for each on/off switch point. If there is not a demand for the lag pump(s) they will
never run with the lead pump. Every day the lead pump will change.
When the lead pump cannot handle the demand of the system, the remaining pump(s) will turn on. For
medical packages: when the last pump in the system is required to operate, the alarm condition will
trigger the audio or visual signal that the lag pump is operating, and the system is near full capacity.
The alarm reset button should be pressed and the light or audible sound will stop.
Manual Modes:
Any pump can be independently started manually by placing the system in manual mode. All high
temperature and low/high level switches will still be monitoring the equipment, thus ensuring the safe
operation of your Vacuum system. The Controller program will not initiate and the automatic
alternation will not function. The cost of operating the system will be considerably higher than in
automatic mode.
Switching to parameterization mode:
In order to change
any
of the preset values in the Controller, the initial procedure is the same:
1. Turn on power to the Controller.
2. Place pump(s) in manual (Hand) mode. This is done so vacuum will be maintained, otherwise
when saving changes, the pump(s) will shut down.
3. Press
ESC
, then scroll down to “Set Param”, then push
OK
.
The Controller switches to parameterization mode and displays the parameterization menu. The operator
can now access the various menus by using the
up
or
down
arrows to toggle to desired menu.
Selecting a parameter:
The following can be parameters:
•
The delay times of a time relay.
•
The switching times of an alternation time switch.
•
The threshold value of a counter.
•
The monitoring time of an operating hours counter (internal clock).
•
The switching thresholds of a vacuum switch.
To select a parameter, proceed as follows:
1. Select the “Set Param” option from the parameterization menu. (
UP
or
DOWN
arrows)
2. Once you have the cursor (>) on the desired parameter, press
OK
.
The Controller displays the first parameter. If parameters cannot be set or modified, you can use
ESC
to return to the parameterization menu. The
ESC
key can be used at any time to leave the
parameterization mode and return to the running mode.
3. Select the desired parameter by using the
UP
or
DOWN
arrows to toggle through until the
desired parameter is displayed in the window.
4. To change a parameter, you must select it and press
OK
.
Changing a parameter:
To change a parameter, you first must select it as shown above. Once you have selected the desired
parameter, you can change the value by moving the cursor to the desired location with the
<
or
>
arrows. The actual value is changed by using the
UP
or
DOWN
arrow. The steps are as follows:
1. Move the cursor to the point at which you want to make the change. (
<
or
>
arrows)
2. Change the value. (
UP
or
DOWN
arrows)
3. Accept the value. (
OK
)
Once all parameters are modified, you’ll need to exit the “Set Param” mode by followings these steps:
1. Press
ESC
until you reach the screen that has
STOP
.
2. Arrow up to
STOP
and press
OK
.
3. When
prompted
Stop Prg
, use arrow
UP
or
DOWN
to
Yes
and press
OK
.
4. Arrow down to
Start
and press
OK
. (This will save the changes)
5. Turn pump(s) to Automatic mode.
Vacuum pump ON/OFF settings for Microprocessing Controller (Vacuum in “Hg):
When setting the ON and OFF switch points in your Controller, use the following table for reference:
Dekker Vacuum Technologies, Inc. – Vmax/13
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