Balluff BTL7-P511-M J-DEXC-TA12 Series, User Manual

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14 english
4
Installation and connection (continued)
4.4 Replacing electronics module
DANGER
Explosions
Opening the housing can result in sparks which can trigger
explosions in explosive atmospheres.
►
Do not open housing when an explosive atmosphere
may be present!
1. Disconnect power source.
2.
Unscrew and remove housing cover.
3. Note wire locations for re-assembly and disconnect
wiring.
4. Disconnect the 2 electronics module retaining screws
(see Fig. 4-6).
5.
Carefully pull the electronics module out of the pressure
housing (avoid bending the measuring range).
6.
Carefully slide new electronics module into the pressure
housing (avoid bending the measuring range).
7. Secure the electronics module using the 2 new screws
provided with the replacement module.
8. Connect wiring (see Electrical connection on page 14).
9. Remove and replace the housing O-ring with the new
O-ring provided with the replacement module.
10. Re-install the housing cover flush and tighten to
33…40 Nm (25…30 ft ∙ lb). Tighten secondary
retaining screws (ATEX).
4.5 Electrical connection
Fig. 4-6:
8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1
Retaining screws
Typical housing with connection terminal assembly, pin
assignment
Note the information on shielding and cable
routing (see section 4.6).
Use 90°C rated conductors.
Pin Signal
1 +Init
2 +Start/Stop
3 –Init
4 GND 1)
5 10…30 V
6 –Start/Stop
7 Not used 2)
8 Not used 2)
1) Reference potential for supply voltage and EMC-GND.
2) Unassigned leads must be connected to GND on the controller side
but not to the shield.
Tab. 4-1: Connection assignments
BTL7-P511-M _ _ _ _ -J-DEXC-TA12
Magnetostrictive Linear Position Sensor – Rod Style
Ignition protection “d”
Flameproof enclosure