Figure 20. Connection To External Buttons Through Potential-Free Contacts - Logic DLC NET Series Use And Maintenance Manual

USE AND MAINTENANCE MANUAL – DLC
3.8 Input and output connections
3.8.1 Inputs from potential-
free contacts
Table 12. Table external buttons connections
NET
Pin on DLC
TB3-4
TB3-5
TB3-6 ÷ TB3-9

Figure 20. Connection to external buttons through potential-free contacts

3.8.2 Inputs from active
source
Table 13. Table connections from active source
NET
Pin on DLC
TB3-4
TB3-6 ÷ TB3-9
LOGIC S.r.l. - M0145Db.docx
Mod. L0006A01 of 30/05/2016
NET
Series
It's possible connect to the instrument up to 4 external buttons that repeat the
functions of the front buttons of the display, connected to 4 optically isolated digital
inputs 24Vdc PNP type of the instrument.
The first typology of connection (Figure 20) provides 4 input buttons by potential-
free contacts. The second typology is shown in the following paragraph.
The pins have in both cases the functions described in Table 12.
Description
0 Vdc
+24 Vdc
Buttons inputs
In case to interface buttons with an instrument able to provide an active output,
you can use the following connection diagram.
Description
0 Vdc (in common with external power supply)
Inputs buttons (+24 Vdc external)
Installation
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