Nordson VersaBlue VB Series, Manual

Page: 266 / 280

Glossary
D-2
P/N 7105144G
2008 Nordson Corporation
VersaBlue_NW
Bd (Baud)
Rate of data transfer: Bit/s.
Bead Size
The width of a bead of material applied to a substrate. The size refers to the
bead before it is compressed by the two parts.
CAN Bus
The C ontroller A rea N etwork is an internationally standardized serial bus
system. With Nordson melters, control components such as temperature
controllers, motor controllers (frequency converters) and pressure sensors
exchange data with the industrial PC via the CAN bus. The CAN bus is used
as an internal network for Nordson unit control and is not intended to be an
interface for the customer’s control units.
Cast-in Heater
A resistance heating element that is cast into a tank or melting plate. This
fixed connection provides optimal heat conducting.
Charring
Decomposition of a synthetic material, particularly through heat influence.
Can occur when processing temperature is too high.
Class of protection
Protective measures are required to ensure electrical safety of the units.
The measures prevent accessible metal parts from conducting voltage
when a fault occurs. Assignment of classes of protection indicates the
protective measures.
Class of
protection
Symbol Precaution
1 All accessible metal parts are conductively connected to one another and
are linked to the mains ground conductor.
2 The unit is insulated such that there are no accessible metal parts that
could conduct voltage in the event of a fault. There is no ground
conductor.
3 The unit is operated with extra-low voltage up to 42 V from a safety
isolating transformer or a battery.