Balluff BTL7-A5-M Series, Руководство пользователя

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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).
Output signals
Wire color -A510 -C500 -C570 -E500 -E570
YE Yellow Not used
1)
0…20 mA 20…0 mA 4…20 mA 20…4 mA
GY Gray 0 V
PK Pink 10…0 V
2)
–
RD Red La (programming input)
GN Green 0…10 V
2)
–
BU Blue GND
3)
BN Brown 10…30 V
WH White Lb (programming input)
1)
Unassigned leads that are not used can be connected to the
GND on the controller side but not to the shield.
2)
Because of the separate output drivers there are small voltage
differences between PK and GN (Offset < 10 mV).
3)
Reference potential for supply voltage and EMC-GND!
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.
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… ≤ 30 m
1)
BTL7-C/E… ≤ 100 m
1)
1)
Prerequisite: Construction, shielding and routing preclude the effect of any
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.
4
Installation and connection (continued)
BTL7-A/C/E5 _ _ -M _ _ _ _ -SF-F _ _
Magnetostrictive Linear Position Sensor – Rod Style