Cable Connection; Shielding And Cable Routing - Balluff BTL7-S5 Série Notice D'utilisation

BTL7-S5_ _(B) -M _ _ _ _ -P-S32/S115/S147/KA_ _/FA_ _
Magnetostrictive Linear Position Sensor – Profile Style
4
Installation and connection (continued)
4.4.4

Cable connection

BTL7 standard
Wire BTL7-S5_ _-...-KA/FA
color BTL7-S5_ _B-...-KA/FA
YE yellow +Clk
GY gray +Data
PK pink –Clk
RD red Not used
1)
GN green –Data
BU blue GND
BN brown 10...30 V
WH white Not used
1)
Unassigned leads can be connected to the GND on the controller side
1)
but not to the shield.
Communication line
2)
Tab. 4-6: Cable assignment BTL7... cable
+Clk
–Clk
+Data
–Data
GND
+24 V
Fig. 4-12: Connection example for BTL7-S... cable 24 V DC with
evaluation/controller
Clk, Data and supply are stranded in pairs
(see Fig. 4-12).
12 english
BTL7 USB-
Configurable
BTL7-S510-...-KA/FA
BTL7-S510B-...-KA/FA
+Clk
+Data
–Clk
La
2)
–Data
GND
10...30 V
Lb
2)
YE
PK
GY
GN
BU
Evaluation
BN
or
Controller
4.5

Shielding and cable routing

Defined ground!
The BTL and the control cabinet must be at the
same ground potential.
Shielding
To ensure electromagnetic compatibility (EMC), observe
the following:
– Connect BTL and controller using a shielded cable.
Shielding: Braided copper shield with minimum 85%
coverage.
– Connector version: Shield is internally connected to
connector housing.
– Cable version: On the BTL side, the cable shielding is
connected to the housing.
Magnetic fields
The position measuring system is a magnetostrictive
system. Ensure that there is sufficient distance between
the BTL and strong, external magnetic fields.
Cable routing
Do not route the cable between the BTL, controller, and
power supply near high voltage cables (inductive stray
noise is possible).
The cable must be routed tension-free.
Bending radius for fixed cable
The bending radius for a fixed cable must be at least five
times the cable diameter.
Cable length
BTL7-S... Max. 500 m
Prerequisite: Construction, shielding and routing preclude the effect of any
1)
external noise fields. Required cable cross-section ≥ 0.6 mm
Tab. 4-7: Cable length BTL7-S...
For notes on cable length, see Technical data
on page 20, Fig. 8-2.
Noise elimination
To avoid equipotential bonding (current flow) through the
cable shield, please note the following:
– Use insulating bushes
– Put the control cabinet and the system in which the
BTL is located to the same ground potential.
1)
or ≤ AWG19
2