4.0 AUTOMATIC PUMP OPERATION
(Pumps equipped with pressure transducer option)
Pumps equipped with the pressure transducer option have the
ability to react automatically at a user-defi ned upper and lower
pressure value. This feature is called “Automode”.
Automode can be turned on or off as desired, at the LCD control
panel.
Automode controlled operation of the motor and electric valve
(if equipped) will vary, depending on pump type . The pump type
appears briefl y on the LCD when power is connected to the
pump.
Refer to Table 1 for a list of the pump types covered in this
manual. Refer to Table 4,
Pump Model Matrix
, (located near the
end of this document) for a description of the specifi c operational
characteristics for each pump type.
Table 1 - Pump Types
Number Pump/Valve Description
1 . . . . . . . . . . . . . . . . . . . Manual w/LCD (manual valve)
2 . . . . . . . . . . . . . . . . . . . Advance/Hold /Retract (electric valve)
3 . . . . . . . . . . . . . . . . . . . Dump (electric valve)
6 . . . . . . . . . . . . . . . . . . . Remote 3 or 4-Way (electric valve)
8 . . . . . . . . . . . . . . . . . . . Jog (manual valve)
10 . . . . . . . . . . . . . . . . . . 3 or 4-Way Manual Momentary
. . . . . . . . . . . . . . . . . . .
Local Mode Default
(electric valve)
4.1 Overview of Automode Operation
Refer to paragraphs A through D of this section for an overview
of Automode operation and features.
4.1 A. If Automode is ON, and LO PRESS setting is
greater than zero
(Pump types 1, 2, 6, 8 and 10)
I. Before the HI PRESS value is reached:
• The pendant buttons and shroud On/Off button will function as
described in sections 3.1 – 3.4.
• The text “AUTO” will be shown on the LCD, reminding the
operator that Automode is active, and that the pump will take
control when system pressure rises to the HI PRESS value.
II. After the HI PRESS value is reached:
•
Pump types 1 and 8:
The pump motor will stop.
•
Pump type 2:
The pump motor will stop and the electric valve
will shift.
•
Pump types 6 and 10:
The pump motor will keep running and
the electric valve will shift.
• The LCD text will change from “AUTO” to “AUTO ON” and the
LCD backlight will begin fl ashing on and off. This indicates that
Automode is now controlling pump operation automatically as
required to maintain the set pressure range.
WARNING:
All personnel must be aware that motor can
start and/or valve can shift at any time when backlight
is fl ashing and “AUTO ON” is displayed on the LCD.
WARNING:
Always set Automode to OFF and
disconnect electrical power to pump before
disconnecting hoses or performing any
adjustments, maintenance or repairs.
III. When system pressure drops to the LO PRESS value:
•
Pump types 1 and 8:
The pump motor will restart.
•
Pump types 6 and 10:
The electric valve will shift.
•
Pump type 2:
The pump motor will restart and the electric
valve will shift.
4.1 B. If Automode is ON, and LO PRESS setting is set
to zero (0) or OFF
(Pump types 1, 2, 3, 6, 8 and 10)
Note:
On pump type 3 only, the LO PRESS function is not used,
and is automatically set to zero (0) by the microcontroller.
I. Before the HI PRESS value is reached:
• The pendant buttons and shroud On/Off button will function
as described in sections 3.1 – 3.4.
• The text “AUTO” will be shown on the LCD, reminding the
operator that Automode is active, and that the pump will take
control when system pressure rises to the HI PRESS value.
II. After the HI PRESS value is reached:
•
Pump types 1, 2, 3 and 8:
The pump motor will stop and the
electric valve will shift.
•
Pump types 6 and 10:
The pump motor will keep running and
the electric valve will shift.
• The LCD will continue to display “AUTO” and the LCD backlight
will remain turned on (will not fl ash on and off).
4.1 C. If Automode is OFF
(Pump types 1, 2, 3, 6, 8 and 10)
• The LCD will display “READY” in the text area.
• The LCD will indicate system pressure as a simple pressure
gauge, no additional actions will be performed regardless of
previously set HI PRESS and LO PRESS values.
4.1 D. Additional Information
• Pressing and releasing any button on the pendant (if equipped)
or shroud will stop the automatic cycle. Pressing the pendant
Down-Arrow (if applicable) will also retract the cylinder. Pressing
the motor On/Off button will also de-energize the motor if it is
running.
• To restart the automatic cycle, press and release the pendant
Up-Arrow button (if applicable) or the motor On/Off button (See
section 3.1– 3.4).
• Refer to sections 6.1 through 6.5 later in this document for
and detailed LCD operating instructions and descriptions of the
Automode LCD screens.
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