Shielding And Cable Routing - Balluff BTL7-S5 Serie Manual De Instrucciones

BTL7-S5 _ _ (B)-M _ _ _ _ -A/B(8)-SA211/SA311-S32/S147/KA _ _ /FA _ _
Micropulse Transducer - Rod Style
4
Installation and connection (continued)
+Clk
–Clk
+Data
–Data
GND
BTL7...-
+24 V
cable
Fig. 4-10: Connection example for BTL7-S...-cable 24 V DC with
evaluation/controller
4.5

Shielding and cable routing

Defined ground!
The transducer and the control cabinet must be
at the same ground potential.
Shielding
To ensure electromagnetic compatibility (EMC), observe
the following:
– Connect the transducer and controller using a shielded
cable.
Shielding: Copper filament braided, at least 85%
coverage
– Connector version: Shield is interally connected to
connector housing.
– Cable version: On the transducer side, the cable
shielding is connected to the housing.
Ground the cable shielding on the controller side
(connect with the protective earth conductor).
Magnetic fields
The position measuring system is a magnetostrictive
system. It is important to maintain adequate distance
between the transducer cylinder and strong, external
magnetic fields.
Cable routing
Do not route the cable between the transducer, 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
≤ AWG19.
Tab. 4-5: Cable length BTL7
For notes on cable length, see Technical data
on page 20, Fig. 8-2.
12 english
YE
PK
GY
GN
BU
Evaluation
BN
or
controller
1)
or
2