Application

Sequence of Operation
Wiring Diagrams
41
Siemens Industry, Inc.
Application Note, App 2926
140-1308
2015-07-07
CAUTION
The LCM-OAVS has two terminal blocks with terminations numbered identically
(terminations 1 through 16). DO NOT mix these up with each other.
If the LCM-OAVS is not connected as shown, it is not resistant to electrical surges. It
is also susceptible to interference from other equipment.
CAUTION
A separate power supply is required if a 4-20 mA sensor is used.
Failure to follow wiring precautions will result in equipment damage.
Wiring for AI with a 4 to 20 mA Sensor.
CAUTION
Each 4-20 mA sensor requires a SEPARATE dedicated power limited 24 Vdc power
supply.
DO NOT use the same transformer to power both the sensor and the controller.
NOTE:
If the voltage/current switch is set to current and a 4 to 20 mA sensor is connected to
an AI, then special wiring requirements must be followed.