Balluff BTL7-A/C/E/G5 M J-DEXC-TA12 Serie Betriebsanleitung Seite 48

BTL7-A/C/E/G5_ _-M_ _ _ _-J-DEXC-TA12
Magnetostrictive Linear Position Sensor – Rod Style
4
Installation and connection (continued)
4.4 Replacing electronics module
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).
4.5 Electrical connection
8 7 6 5 4 3 2 1
Fig. 4-6: Typical housing with connection terminal assembly,
pin assignment
1)
Pin Wire color BTL7-A510-...
2)
1 YE yellow
2 GY gray
2)
3 PK pink
4 BU blue
5 BN brown
2)
6 GN green
7 RD red
8 WH white
1) Recommended wire color when using the calibration box (see Fig. 6-1 on page 17)
2) In addition to the 0 V gray wire, only one output signal may be connected, i.e. either the yellow, pink, or green wire!
3) Unassigned leads must be connected to GND on the controller side but not to the shield.
4) Reference potential for supply voltage and EMC-GND!
Tab. 4-1: Connection assignments
14 english
DANGER
Retaining screws
8 7 6 5 4 3 2 1
BTL7-G510-...
3)
Not used
10...0 V 10...–10 V
0...10 V –10...10 V
Type of protection "db" and "t"
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. Re-install the housing cover flush and tighten to
33...40 Nm (25...30 ft ∙ lb). Tighten secondary retaining
screws (ATEX).
Note the information on shielding and cable
routing (see Section 4.6).
Use 90°C rated conductors.
BTL7-C500-... BTL7-C570-...
0...20 mA 20...0 mA
0 V
Not used
4)
GND
10...30 V
Not used
La (programming input)
Lb (programming input)
Flameproof enclosure
BTL7-E500-... BTL7-E570-...
4...20 mA 20...4 mA
3)
3)