4.Methods of Connection
22
4-1-1-2. Strain Gauge Sensor Connection
Before connecting a sensor, set the excitation voltage, turn off the power, and perform
the following connection. (See "5-6. Excitation Voltage" P34.)
・
4-wire sensor
・
6-wire sensor
For connecting a 6-wire strain gauge type sensor, short-cEXC and +S, and -EXC
and -S.
・
For connecting a sensor, be sure to use shielded lines, and separate
wiring from lines with heavy noise (such as wiring of power equipment
and wiring of digital equipment) and AC lines.
・
The analog GND in the F395 is grounded to F.G. Also, when voltage/
current input is specified, the -SIG terminal is at about the same level
as the analog GND. (See "20. Block Diagram" P152.) Carry out wiring
so that unnecessary current will not flow.
Request
＋
EXC
－
EXC
＋
SIG
－
SIG
F.G
＋
IN
－
OUT
－
IN
＋
OUT
F395
＋
EXC
－
EXC
＋
SIG
－
SIG
F.G
＋
IN
－
OUT
－
IN
＋
OUT
＋
S
－
S
F395
