LA 302 Pressure Controller Manual.pdf - 第36页
LA 302 4 2 3 1 5 Operation 4-6 P/N 71 19797A 2006 Nordson Corporation LA 302 Issued 06/06 LED’s The LEDs indicate the following: LE D Meaning 1 Illuminated in automatic mode when the required minimum speed is exceeded; i…
LA 302
B
LA 302
1
Operation
4-5
P/N 7119797A
2006 Nordson Corporation
LA 302
Issued 06/06
Switching from Automatic to Manual Mode (Mode Switch B)
Mode switch (B) is used to switch to the following modes:
Position Meaning
Left Automatic operation:
Pressure controller operates with the set values.
Center No operation:
Pressure is being controlled, but any pneumatic valves
connected are not being controlled. Since the nozzles do
not open, no glue flows out. This position is useful e.g.
when filling material, etc.
Right Manual mode:
Adhesive guns open and glue flows out. Pressure is
controlled even when the production machine speed
changes. This switch position is intended to be used for
testing purposes.
Fig. 4-7
Display / LEDs
A 7-segment display and 5 LEDs serve as the display elements.
Display
The display serves:
To indicate the production machine speed
To indicate the minimum speed (in setting mode)
To indicate minimum and maximum pressure for the proportional
pressure control valves (in setting mode).
Fig. 4-8
LA 302
4
23
1
5
Operation
4-6
P/N 7119797A
2006 Nordson Corporation
LA 302
Issued 06/06
LED’s
The LEDs indicate the following:
LED Meaning
1 Illuminated in automatic mode when the required minimum
speed is exceeded; illuminated in manual mode.
2 Illuminated when one of the electropneumatic solenoid
valves on the adhesive gun has short-circuited or when
current > 1.6 A is flowing.
3 Illuminated when the production machine speed is below the
minimum speed set on the LA 302.
4 Illuminated when proportional pressure control valve 1 is not
connected or the connection is interrupted.
5 Illuminated when proportional pressure control valve 2 is not
connected or the connection is interrupted.
Fig. 4-9
Operation
4-7
P/N 7119797A
2006 Nordson Corporation
LA 302
Issued 06/06
Settings Record
This form can be used to keep a record of the essential production
parameters. Please make sufficient copies of form before filling out.
Production information:
Adhesive:
Manufacturer
Processing temperature
Viscosity
Cleaning agent:
Manufacturer
Flash point
Pressures:
Operating air pressure in bar
Minimum pressure in mA for proportional pressure control valve 1
Maximum pressure in mA for proportional pressure control valve 1
Minimum pressure in mA for proportional pressure control valve 2
Maximum pressure in mA for proportional pressure control valve 2
Speeds:
Lowest possible production machine speed
Highest possible production machine speed
Minimum speed set on LA 302
Motor/pump speed(s) of
adhesive feeding unit:
Remarks:
Form filled out by:
Name
Date