Meler MACRO FOAM Series, Instruction Manual, Page: 28 / 88

FOCKE MELER GLUING SOLUTIONS, S.A.
3-8
INSTALLATION
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 seven 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 beacon) 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 Standby_ control input from the standby mode, via a non-
voltage contact. The standby function is connected with a closed
contact; an open contact disconnects it.
• Low level_ an output from a non-voltage contact that communicates to
the main machine (or to a warning light beacon) that the adhesive fluid
level in the tank has reached the minimum level established (optional)
• Output disabled_ disabled input signal for each hose-applicator output
via a non-voltage contact. With a closed contact, the output remains
activated (output on); with an open contact, it is deactivated (output off).
• Motor start up_ for each pump installed, the motor start up may be
controlled by closing an external non-voltage contact.
• Foam pump pressure regulation_ for each pump installed, the foam
pump pressure may be controlled by means of a 0 to 10V DC external
signal.
• Failures output in pump control card_ output from a non-voltage
contact that communicates normally to a warning light beacon the
failure from the pump control card.
• Gas low level_ an output from a non-voltage contact that
communicates to the main machine (or to a warning light beacon) that
the gas level has reached the minimum level established.
• External adhesive feeder_ an output from a non-voltage contact
that communicates to the pre-fuser machine the orden of pumping
adhesive.
Warning: Risk of electric shock. Carelessness may cause injuries or death.
Temperature ok
1. If only this signal will be connected, use a 0.5 mm
2
two-wire cable.
2. Thread the power cord (max. Ø12.5 mm) through the electrical wall
bushing Pg13 and fasten it to the inside anchor, making sure that the
cord reaches the power card connector.
Pg13