Measurement Technology NW
LCI-90 Operator Manual
Page 17
Dual NPN/PNP Switches, +12 V Excitation
TB4
Payout Sensors – Proximity Switch
+12
EXCITATION – SENSOR A
+12
EXCITATION – SENSOR B
A
SIGNAL – SENSOR A
B
SIGNAL – SENSOR B
COM
COMMON – SENSOR A
COM
COMMON – SENSOR B
Figure 4.11 – Payout Hookup – 12V NPN/PNP switches
TTL Encoder, +5 V Excitation
TB4
Payout Sensors – Encoder
+5
+ EXCITATION
A
SIGNAL – SENSOR A
B
SIGNAL – SENSOR B
COM
– EXCITATION
Figure 4.12 – Payout Hookup – TTL Encoder
4.1.4 Alarm Outputs
The four alarm outputs are terminated on TB3. The LCI-90 requires optional G5-
type optically isolated output modules to implement the alarm outputs. These are
available in both solid state and hard contact types with a variety of voltage and
current ratings. The specific DIP switch settings required for the Alarm Outputs are
shown in Appendix B. The wiring diagram below matches the Opto Module number
with the corresponding terminal block numbers on TB3. Note that the
Input Check
alarm (§6.3.2) also uses Opto 1, and the
Shunt Cal
relay (§4.1.5, §5.6) uses Opto 4.
