Wiring - Balluff BTL5-P1-M Serie Technische Beschreibung, Betriebsanleitung

BTL5-P1-M_ _ _ _-B/Z-DEX_-K_ _/KA_ _
Micropulse Transducer - Rod Style
4

Wiring

Important wiring note:
Note that the displace-
ment measuring system
must be connected to the
potential compensation system in
accordance with the specifica-
tions of DIN EN 60079-14. The
external connection for the
transducer is accomplished by
means of metallic conducting
installation in a grounded area.
The flange and housing are me-
chanically fixed together and
electrically identical, so that no
potential differences between
them can occur.
If no metallic conducting installa-
tion location can be assured, the
housing must be grounded using
the ground screw on the cover.
The system and the control cabi-
net must be at the same ground
potential. A sufficient potential
compensation has to be pro-
vided such that it does not flow
through the cable shield!
To ensure electromagnetic com-
patibility (EMC), which Balluff
verifies by the CE Marking, the
following points must be strictly
observed.
BTL transducer and processor /
controller must be connected
using shielded cable.
Shield: Copper-stranded mesh,
85 % coverage. The shield is
connected to the housing of the
transducer. It must be grounded
on the control side.
Unused leads can be tied to
GND on the control side, but
they must never be connected to
the shield.
Refer to table 4-1 for wiring
assignments.
For safety reasons the maximum
current load for the RS 485 inter-
face is 20 mA.
The installed cable fitting
was tested with reduced
tensile force in accor-
dance with EN 60079-0.
This is why the connection cable
must be routed in a permanent
location and protected against
tension and rotary loads using an
additional clamp. It may not be
used with drag chains.
8
english
When routing the cable between the
transducer, controller and power
supply, avoid proximity to high volt-
age lines to prevent noise coupling.
Especially critical is inductive noise
caused by AC harmonics (e.g. from
phase-control devices), against
which the cable shield provides only
limited protection.
The high noise immunity of the con-
nection between transducer and
processor is assured by the differ-
ential line drivers used in the
RS485/422 interface. Maximum
length of the signal transmission is
500 m.
The RS 485/422 interface carries
the differential digital signals to the
controller or processor, which in
turn prepares them as analog or
digital information for further pro-
cessing.
INIT
START/STOP
INIT
START/STOP
+24 V
GND
Potential compensation
as per DIN EN 60079-14
Fig. 4-1: BTL5-P1...KA_ _ with processor/controller, wiring example
Ignition Class "d"
Flameproof enclosure
Control and data signals
BTL5-P1... Wire color
INIT YE yellow
INIT PK pink
START/STOP GY grey
(2nd edge)
START/STOP GN green
(2nd edge)
Supply voltage (external)
BTL5-P1... Wire color
+24 V BN brown
GND BU blue
not used WH white *
* The white lead must be tied
on the control side to the
terminal with the blue lead.
Table 4-1: Wiring
YE
GY
PK
GN
BN
BU
Processor
WH
or
controller