GV21001e_e_A5.doc / Jul-07
Page 9 / 11
3.
Switch Settings
The DIL switch sets level and standard of inputs and outputs:
0=OFF
DIL
switch
settings
1=ON
8 7 6 5 4 3 2 1
0 Output 1: TTL / RS422
1 Output 1: HTL
0
Output 2: TTL / RS422
1
Output 2: HTL
The output levels are 5 volts
with TTL setting and
correspond to the power
supply voltage with HTL
setting
0
(Z)
0
(B)
0
(A)
Input 1: differential
(A, /A, B, /B, Z, /Z)
Both, input and inverted input
must be available. Levels from
2 to 30 volts are acceptable.
1
(Z)
1
(B)
1
(A)
Input 1: single-ended
(A,B,Z) with HTL level
Inverted inputs remain open,
level must be HTL 10-30 volts
0
(Z)
0
(B)
0
(A)
Input 2: differential
(A, /A, B, /B, Z, /Z)
Both, input and inverted input
must be available. Levels from
2 to 30 volts are acceptable.
1
(Z)
1
(B)
1
(A)
Input 2: single-ended
(A,B,Z) with HTL level
Inverted inputs remain open,
level must be HTL 10-30 volts
Please set unused input lines to “single-ended” HTL at any time!
It is not mandatory to use the same level for all channels of an input. The indications (A), (B), (Z)
show which switch position is responsible for which channel.
When e.g. positions 3 and 4 are set to “0” and position 5 is set to “1”, Input1 would accept
A, /A, B, /B at RS422 standard, and the Z index as a HTL single-ended signal.
Consequently it is possible to e.g. generate an Index from a remote photocell, whereas the
impulses come from the RS422 encoder simulation of a drive system.