DHTG
Festo – DHTG – 2018-02e English
9
5.3
Electrical installation
If proximity switches are used for position sensing:
Note
Faulty switching or damage to the proximity
switches due to being screwed in too far.
Make sure the proximity switches are
screwed into the thread (U), (V) or (W) up to
the following maximum depth.
Max. screw-in depth
Size
65
90
140
220
Thread (U), (W)
[mm]
11.5
11.5
13.5
18.5
Thread (V)
[mm]
19.7
14
16
21
Tab. 8
Screw the proximity switches into the following threaded holes:
Sensing
Direction of rotation of plate
Clockwise rotation
Anti-clockwise rotation
(reciprocating operation/
flexible control)
Direction of rotation
(W)
(U)
Locking mechanism
(V)
(V)
Piston end position
(U)
(W)
Tab. 9
When the DHTG is used with 3-part split (DHTG-140 and DHTG-220):
Note
Based on the design, the rotating plate can engage in an intermediate position
(corresponding to the 6-index stations).
After an emergency stop / overload, make sure that the rotating plate is in the
desired position before the system is placed back in operation.
If the rotating plate is engaged in an intermediate position, bring the locked rotating
plate into the desired position by jerking and twisting it against the overload
protection.
Fig. 8
(U)
(V)
(W)
