Vega VEGAPULS 62 User Manual

32
5 Connecting to the bus system
VEGAPULS 62 • Probus PA
36505-EN-181127
5 Connecting to the bus system
5.1 Preparing the connection
Always keep in mind the following safety instructions:
•
Carry out electrical connection by trained, qualied personnel
authorised by the plant operator
•
If overvoltage surges are expected, overvoltage arresters should
be installed
Warning:
Connect only in the complete absence of line voltage.
The voltage supply is provided by a Probus DP /PA segment coupler.
The voltage supply range can dier depending on the instrument
version. You can nd the data for voltage supply in chapter "Technical
data".
Connection is made with screened cable according to the Probus
specication. Power supply and digital bus signal are carried over the
same two-wire connection cable.
Make sure that the cable used has the required temperature resist-
ance and re safety for max. occurring ambient temperature
Use cable with round cross section for instruments with housing and
cable gland. To ensure the seal eect of the cable gland (IP protection
rating), nd out which cable outer diameter the cable gland is suitable
for.
Use a cable gland tting the cable diameter.
Make sure that the entire installation is carried out according to the
Probus specication. In particular, make sure that the bus is termi-
nated with suitable terminating resistors.
You can nd detailed information of the cable specication, installa-
tion and topology in the "Probus PA - User and Installation Guide-
line" on www.probus.com.
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory. They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPT thread
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
free openings for the cable glands are therefore covered with red dust
protection caps as transport protection.
Prior to setup you have to replace these protective caps with ap-
proved cable glands or close the openings with suitable blind plugs.
On plastic housings, the NPT cable gland or the Conduit steel tube
must be screwed into the threaded insert without grease.
Safety instructions
Voltage supply
Connection cable
Cable glands

Vega VEGAPULS 62 Specifications

General

Brand	Vega
Model	VEGAPULS 62
Category	Accessories
Language	English