Electrical Connection; Shielding And Cable Routing - Balluff BTL7-A/C/E5 Serie Manual De Instrucciones

BTL7-A/C/E5 _ _ -M _ _ _ _ -SF-F _ _
Magnetostrictive Linear Position Sensor – Rod Style
4
Installation and connection (continued)
4.2

Electrical Connection

The electrical connection is permanent and made using a
cable (F_ _). The connection assignments depend on the
respective version (see Tab. 4-1).
Wire color
YE Yellow
GY Gray
PK Pink
RD Red
GN Green
BU Blue
BN Brown
WH White
Unassigned leads that are not used can be connected to the
1)
GND on the controller side but not to the shield.
Because of the separate output drivers there are small voltage
2)
differences between PK and GN (Offset < 10 mV).
Reference potential for supply voltage and EMC-GND!
3)
Tab. 4-1: Pin Assignments
4.3

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.
– 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
and the holding cylinder and strong, external magnetic
fields.
10 english
Output signals
-A510 -C500
Not used 0...20 mA
1)
10...0 V
2)
0...10 V
2)
-C570
20...0 mA 4...20 mA
0 V
–
La (programming input)
–
GND
3)
10...30 V
Lb (programming input)
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.
Cable length
BTL7-A...
BTL7-C/E...
Prerequisite: Construction, shielding and routing preclude the effect of any
1)
external noise fields.
Tab. 4-2: Cable length
Bending radius for fixed cable
The bending radius for a fixed cable must be at least five
times the cable diameter.
-E500 -E570
20...4 mA
≤ 30 m
1)
≤ 100 m
1)