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

BTL7-A/C/E/G _ _ _ -M _ _ _ _ -A(8)-SA211/SA311-S32/S115/S135/KA_ _/FA_ _
Magnetostrictive Linear Position Sensor – Rod Style
4
Installation and connection (continued)
4.4.3 Connector S135
S135 -A_10 -G_10
pin
1 0...10 V –10...10 V
2
3 10...0 V 10...–10 V
4 0 V (pin 3)
BTL7-_1_ _-...
5 20...28 V
6 GND
Tab. 4-4: Connection assignment BTL7...-S135
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.
Ground the cable shielding on the controller side
(connect with the protective earth conductor).
Magnetic fields
The position measuring system is a magnetostrictive
system. Ensure that there is sufficient distance between
the BTL, holding cylinder 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-A/G Max. 30 m
BTL7-C/E Max. 100 m
Tab. 4-5: Cable lengths BTL7
Prerequisite: Construction, shielding and routing preclude the effect of any
1)
external noise fields.
12 english
-C_00 -C_70
0...20 mA 20...0 mA
0 V (pin 1)
Not used
Not used
BTL7-_5_ _-...
2)
1)
1)
-E_00 -E_70
4...20 mA 20...4 mA
Figure 4-10: Pin assignment of S135 (view from
1)
1)
Unassigned leads can be connected to the GND on
1)
the controller side but not to the shield.
10...30 V
Reference potential for supply voltage and EMC-GND.
2)
GND
2)
above on BTL), 6-pin M16 circular
plug