Meler PS20, Инструкция по эксплуатации, Страница: 23 / 100

INSTALLATION
3-5
MA-5130-GBR PS20 NON STOP DRUM UNLOADER INHIBITION MANUAL
Activate the air supply to pass and turn the pressure regulator clockwise.
The ratio between the pneumatic pressure and the hydraulic pressure on the
circuit is 1 to 13 bar.
Warning: A 6 bar on the grid, the maximum pressure on the hydraulic circuit
reaches 80 bar. There is a risk of burns or particle projection. Use thermal
protective gear and goggles.
Hose and applicator connection
PS20 Non Stop melters use standard Meler components. The entire range of
Meler hoses and applicators may be connected to this equipment.
Up to four hose-applicator outputs may be connected to PS20 Non Stop
system melters, depending on the number of pumps installed.
Warning: When connecting hose-applicator outputs, verify that the connected
power is not above the maximum allowable power for each output.
The PS20 Non Stop melting equipment is equipped with a hydraulic distributor
for each pump, with 2 possible outputs, depending on the connections that will
be used. Connect the hoses to the distributor according to the needs of the
installation and the ease of connection.
Caution:
• In order to identify each hose-applicator, electrically connect them to
the connector with the same number as the output they use.
• It is preferable to use couplings at a 45° or 90° angle to minimize the
space the hoses occupy. Using straight couplings usually results in
curves with very small radii that may damage the inside of the hose.
• Save the screw-on caps that are removed from the distributor in order
to connect a hose. They may be necessary in the future if a hose is
removed from its location.
• Perform the electrical hose and applicator connections with the
equipment turned off. Failing to do so may result in electrical defects
in theconnection and the appearance of alarm messages on the melter
display.
External I/O connections
The melter’s input and output signals (I/O) allow it to communicate with the
main machine simply and directly.
There are some signals that may be used to communicate with the main
machine:
• Temperatures ok_ an output from a non-voltage contact that
communicated to the main machine (or to a warning light tower) that
all the system temperatures have reached 3° below their set point
value (and the delay time have finished) during start-up, or that their
real value is not 20°C below their set point value during operation.
• External ON/OFF_ an imput control from a non-voltage contact.
With closed contact the equipment is connected; with open contact
disconnects.