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No. 892883 EN ∙ L16; Subject to modification. Replaces E14.
english
Startup
  DANGER
Uncontrolled system movement
When starting up, if the position measuring system is part 
of a closed loop system whose parameters have not yet 
been set, the system may perform uncontrolled 
movements. This could result in personal injury and 
equipment damage.
 ► Persons must keep away from the system’s 
hazardous zones.
 ► Startup must be performed only by trained technical 
personnel.
 ► Observe the safety instructions of the equipment or 
system manufacturer.
1.  Check connections for tightness and correct polarity. 
Replace damaged connections.
2.  Turn on the system.
3.  Check measured values and adjustable parameters 
regularly (especially after replacing the transducer or 
after repair by the manufacturer). Recalibrate the 
transducer, if necessary.
The calibration procedure is described in the 
comprehensive user’s guide.
Operating notes
 – Check the function of the transducer and all associated 
components on a regular basis.
 – Take the position measuring system out of operation 
whenever there is a malfunction.
 – Secure the system against unauthorized use.
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 internally connected to 
connector housing.
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.
Cable length
The maximum cable length when using CAT5e cables is 
100m
3)
.
3) Prerequisite: Construction, shielding and routing preclude the effect of 
any external noise fields.
Noise elimination
To avoid equipotential bonding - a current flow - through 
the cable shield, please note the following:
 – Use insulating bushes
 – Put the control cabinet and the system in which the 
BTL7 is located to the same ground potential.
BTL7-V50D/E/T-M _ _ _ _ -P-C003
Transducer in a Profile Housing
Electrical connection
Power
1
22
31
42
3
Pin assignment of connector (view of connector pins of transducer)
Pin Cable color Signal
1 BN brown 10…30 V
2 WH white Not used
1)
3 BU blue 0V GND
2)
4 BK black Not used
1)
BUS IN/OUT (data)
Pin Cable color Signal
1 YE yellow TX+
2 WH white RX+
1) Unassigned leads can be connected to GND on the controller side but not to 
the shield.
2) Reference potential for supply voltage and EMC-GND.
3 OG orange TX−
4 BU blue RX−
Power
(pin)
Bus OUT
(socket)
Bus IN
(socket)