Balluff BTL7-C Series Condensed Manual Download Page 5

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BTL7-C/E1-M _ _ _ _ -A/B/Y/Z(8)-SA42/327-KA_ _-ZA0C

Micropulse Transducer - Rod Style

No. 866887 E 

.

 Edition 1004; Subject to modification. Replaces edition 0901.

english

Deviation BTL7-...SA42/327-...ZA0C

Only adjustable with the calibration device  

 

(not included with SA327).

Non-linearity increases by factor 2 above the standard 

 

values.

Electrical connection

Pin

Interface  BTL7-... ZA0C

-C100

-C170

-E100

-E170

1

+

24 V

2

Not used

1)

3

GND

2)

4

0 to 

20 mA

20 to 

0 mA

4 to 

20 mA

20 to 

4 mA

5

Not used

1)

1) 

Unassigned leads that are not used can be connected to the GND on the 
control side but not to the shield.

2) 

Reference potential for supply voltage, output and EMC-GND.

1

2

3

4

5

Pin assignment of connector 

(view from above on transducer plug)

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.

Horizontally connect the shield in the connector to the 

 

plug 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/holding 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 and stationary.

The bending radius must be at least five times the cable 

diameter.

Installing the transducer

NOTE!

Improper installation

Improper installation can compromise the function of the 
transducer and result in increased wear.

The flange surface of the transducer must make full 

 

f

contact with the mounting surface.
The bore must be perfectly sealed (O-ring/flat seal).

 

f

Only use the proper nut for the fastening screw thread. 

Firmly tighten the transducer with a maximum torque of 

100 Nm.

If installing horizontally with nominal lengths > 500 mm, we 

recommend tightening the outer rod at the end (only 

possible with Ø 10.2 mm) or supporting it.

If installed in a hydraulic cylinder, the magnet may not 

scrape against the outer rod. Minimum bore diameter in 

the support piston:

Tube diameter

Bore diameter

10.2 mm

At least 13 mm

8 mm

At least 11 mm

Starting up the system

  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 

 

f

hazardous zones.
Startup must be performed only by trained technical 

 

f

personnel.
Observe the safety instructions of the equipment or 

 

f

system manufacturer.

Check connections for tightness and correct polarity. 

1. 

Replace damaged connections.
Turn on the system.

2. 

Check measured values and adjustable parameters 

3. 

(especially after replacing the transducer). Re-adjust 

the transducer, if necessary.

The adjustment processes are 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.

 

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