Nordson VersaBlue VB Series, Manual

Page: 52 / 280

Outputs
Inputs
Installation
3-12
P/N 7105144G
2008 Nordson Corporation VersaBlue_NW
Interface Assignment
Interface Standard I/O − Standard Assignment −
General Notes
To conform with a European standard regarding electro-magnetic
compatibility (EMC), only shielded cable may be connected. The cable
must
be connected to ground in compliance with the standard regarding
electromagnetic compatibility.
Inductive loads (e.g. solenoid valves) connected to the melter must be
equipped with a protective device (e.g. recovery diode) that disables the
inductive voltage generated when an inductive load is switched off.
The permitted voltage deviation is 10%.
In Field bus mode (option Fieldbus communication ) the unit can not be
controlled via the interface.
Digital inputs
Pin Input Function
1 * 24 V
DC
Internal (melter)
2 * 0 V
DC
External (customer’s)
NOTE: Customer connects his reference potential here, if 24 V
DC
is provided by
customer.
3
0 V
24 V
Rising edge: Heaters ON (main contactor closes)
0 V
24 V
Falling edge: Heaters OFF (main contactor opens)
4 24 V: All motors ON (collective enable)
0 V: All motors OFF
5 24 V: Enable Motor 1
0 V: No Motor 1 enable
6 24 V: Enable Motor 2
0 V: No Motor 2 enable
7 24 V: Enable Motor 3
0 V: No Motor 3 enable
8 24 V: Enable Motor 4
0 V: No Motor 4 enable
9
0 V
24 V
Rising edge: Switch on Standby
0 V
24 V
Falling edge: Switch off Standby
10
0 V
24 V
Rising edge: Key-to-line mode (for all motors)
0 V
24 V
Falling edge: Manual mode (for all motors)
* selectable