Magnetic Tape Mounting Examples; Magnetic Tape Mounting; Read Head Mounting - SICK TTK50S Manual De Instrucciones

WARNING
Only use the screws once. After removing the safe motor feedback system:
At the connection between the drive system and the safe motor feed‐
b
back system, the affected thread must be free from residue.
Use a new (unused) screw with screw adhesive on the thread during the
b
remounting process.
If mounted again, the mounting kit (2105618 / 2109583) must be pur‐
b
chased from SICK.
Disassembly
NOTE
If the safe motor feedback system has to be removed, the mounting steps are
to be carried out in reverse order.

4.2 Magnetic tape mounting

NOTE
For technical reasons, an additional allowance must be taken into account for
the length (across from the measuring distance):
TTK50 S: ≥ 60 mm
•
• TTK70 S: ≥ 80 mm
Marking on sensor
required tape length = measuring section + 60 mm
5 50
(1.97)
(0.20)
Figure 1: Magnetic tape mounting
NOTE
Mounting must be done level to the mounting surface or the distance to be
measured. Ripples always impair the measurement accuracy. Sufficient
mechanical protection must be ensured (e.g. against impacts and vibrations).
NOTE
To achieve optimal bonding, all anti-adhesive foreign substances (oil, fat,
dust, etc.) must be removed with cleaning agents which evaporate with the
minimum possible level of residue. Among others, ketone (acetone) or alco‐
hol are good cleaning agents.
NOTE
The adhesive surfaces must be dry and the maximum possible contact pres‐
sure must be used for adhesion. An adhesion temperature of 20 °C and
30 °C in dry rooms is optimal.
NOTE
When adhering longer strips of tape, the protective film of the tape should be
removed in shorter sections to fix the tape. Then the tape is aligned. After
alignment, the rest of the protective film can be pulled out from the side while
pressure is applied to the tape at the same time.
Carefully clean the mounting surface.
b
Remove the protective film of the tape on the magnetic tape.
b
Adhere the magnetic tape in line with the direction of movement.
b
Carefully clean the magnetic tape surface.
b
Remove the protective film of the tape on the covering tape.
b
Adhere covering tape (slightly overlap at both ends).
b
Secure the overlapping ends of the cover tape from coming loose.
b
8023821/14W8/2019-07-10/de, en, es, it, fr
Travel direction
Marking on strip
(2.36 inch)
measuring section

4.3 Magnetic tape mounting examples

Figure 2: Mounting example - angled protective tape
The simple mounting method with angled protective tape is only recommended in
a very protected environment.
5
Figure 3: Mounting example - magnetic tape, fastened on front
(0.20)
Figure 4: Mounting example - magnetic tape, fastened flat
There is a risk of peeling off if the environment is not protected. In these cases,
mounting methods with front or flat fastening of the magnetic tape are suitable.
Figure 5: Mounting example - magnetic tape in a slot
Mounting in a slot offers optimal protection. The slot must be deep enough that
the magnetic tape can be completely embedded inside it.

4.4 Read head mounting

WARNING
The tolerance and distance dimensions must be complied with for the entire
measuring distance. Larger deviations in mounting lead to implausible posi‐
tion values.
TTK50S/TTK70S | SICK 7