Wiring - Balluff BTL5-S1 Serie Manual De Instrucciones

BTL5-S1_ _-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
interface 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.
english
8
Control and data signals
BTL5-S1... Wire color
+Clk YE yellow
–Clk PK pink
+Data GY grey
–Data GN green
Supply voltage (external)
BTL5-S1... 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
+Clk
–Clk
+Data
–Data
+24 V
GND
BTL5-S1...
B/Z-DEX ...
Potential compensation
as per DIN EN 60079-14
Fig 4-1: BTL5-S1...B/Z-DEX ... with controller, wiring example
Ignition Class "d"
Flameproof enclosure
When routing the cable between
the transducer, controller and
power supply, avoid proximity to
high voltage lines to prevent noise
coupling. Especially critical is in-
ductive noise caused by AC har-
monics (e.g. from phase-control
devices), against which the cable
shield provides only limited protec-
tion.
Position information is sent over the
RS 485/422 interface as synchro-
nous serial data (SSI) to the host
controller. High noise immunity is
assured by the differential drivers
used for sending and receiving sig-
nals.
Cable length max. 400 m. The
clock frequency is a function of the
cable length:
Cable length Clock frequency
< 25 m < 1000 kHz
< 50 m < 500 kHz
< 100 m < 400 kHz
< 200 m < 200 kHz
< 400 m < 100 kHz
Table 4-2: Clock frequency vs.
cable length
YE
PK
GY
GN
BN
BU
Controller
WH