____________________________________________________________________________________________________________
V2
AC500 Hardware
1-29 System
data
AC500 / Issued: 05.2007
1
Terminal with wire connected
2
Insert screwdriver (2.5 x 0.4 to 3.5 x 0.5 mm) at an angle, screwdriver must be at least
15 mm free of insulation at the tip
3
While erecting the screwdriver, insert it until the stop (requires a little strength), terminal is
now open
4
Remove wire from the open terminal
5
Remove the screwdriver
6 Done
Mechanical encoding
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Pos.
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Figure: Possible positions for mechanical encoding (1 to 18)
Terminal Units (S500) and CPU Terminal Bases (AC500) have an mechanical coding which prevents
that modules are inserted to wrong places. Otherwise
•
dangerous parasitic voltages could occur or
•
modules could be destroyed.
The coding either makes it impossible to insert the module to the wrong place or blocks its electrical
function (outputs are not activated).
