Meler PS 20 NON STOP+, Instruction Manual

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FOCKE MELER GLUING SOLUTIONS INSTALLATION
3-6
External I/O connections
The signals that can be used to communicate with the main machine are as
follows:
(1) See point ‘4 Use / Settings Menu / Configuration of input and output signals’.
Some inputs will not be shown on the menu, depending on which options are installed in the unit.
(2) See point ‘4 Use / Heating Menu / Auto Standby - OFF’.
(3) See point ‘4 Use / Settings Menu / Additional Settings’.
(4) See point ‘4 Use / Heating Menu / Inhibitions’.
Type Description Terminal Polarity
Input
External ON/OFF
(1)
A closed contact switches the unit on; an open contact turns it off.
XDI 1.1 +24 VDC 200mA
XDI 1.2 IN
Standby ON/OFF
(1)
A closed contact activates the ‘Standby’ function; an open contact
deactivates it and the unit returns to the status indicated by the
unit’s other signals.
XDI 2.1 +24 VDC 200mA
XDI 2.2 IN
Activity (Auto Standby - OFF)
(1)
Contact for the activity control signal, to switch the unit to Standby
and off mode
(2)
.
XDI 3.1 +24 VDC 200mA
XDI 3.2 IN
ON/OFF communications
(1)
A closed contact activates the communications (Modbus/Profibus);
an open contact deactivates them. Signals must be enabled in the
unit
(3)
.
This can be configured
(1)
and
connected in XDI1, XDI2 or XDI3
Pumping external OFF
(1)
A closed contact activates pumping (if the required conditions are
met); an open contact deactivates it.
This can be configured
(1)
and
connected in XDI1, XDI2 or XDI3
Inhibition of zones
Zone inhibition control inputs. The unit has 8 contacts to inhibit 8
groups of programmable zones
(4)
. When the contact is closed, the
respective group is inhibited (off); when the contact is open, the
inhibition of that group is disabled (activated).
XI1 a XI7 +24 VDC
XIC GND
Control of Proportional Valve (VP1 / VP2)
Contact for the external regulation of the proportional valve
pressure.
XVP1.1
XVP2.1
+ ISOLATED 0-10V
XVP1.2
XVP2.2
GND