Siemens SIMATIC S5 - Putting into Operation; Setting the Operating Mode; Conditioningthe Input Levels

R 02/92
Matching Module 1 for Absolute Encoders
4.3 Putting into Operation
4.3.1 Setting the Operating Mode
Function
No change signal
Change signal
Philips glass scale with
half step increments (0.5)
Other encoders
DIP switch S1
DIP switch S2
Contact 1
I
Contact 2
Position 1
(D
————
Position 2
closed
open
I
open
I
closed
0 See layout encoder matching module, section 4.3.7.
4.3.2 Conditioning the Input Levels
Input voltage (from cl to C21 Rlol/Rlo2
R103/Rl OZVRI05
R106/R107
Excess–3 gray encoder)
10
nF
resistor network
= Signal voltage
resistor network
resistor network
(joint point) (single res.)
(joint point)
5 V ITL
as required omitted
wire jumpers omitted
12 v as required omitted 899–3–R 2 K
899-1 –R 1,5 K
15 v
as required
omitted
899=3–R 3,3 K 899-1 -R 1,5 K
24 V as required
omitted
899–3–R–? K@
899-1 –R 1,5 K
Open Collector
as required 899–1 –R 8,2 K
wire jumpers 899-1 –R 1,5 K
@ The resistance depends on the output impedance of the encoder (see note on next page).
Small disturbances occurring in spite of correct wiring and shielding can be
sifted off with the capacitors Cl to C21.
1P 241 Equipment Manual
@ &MIW31W AG 1989, Order No.: 6ES5 998-0KD21
4–3
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