Communications Wiring - KAM Simple Precision CHA User Manual

I N S TA L L AT I O N C O N T I N U E D
1.
To connect the power for the CHA™ sensor, first check both wires from the source for polarity and voltage, then
LED3
label appropriately. Shielded twisted pair wire is recommended for both power and signal.
2. Connect positive wire to 24/12 VDC (+). Fig. 3-13
LED1
3. Connect negative wire to 24/12 VDC (-). Fig. 3-13
WARNING: Connecting a power source to the 4-20 mA ports on the TB will damage the 4-20 mA output and
resulting failure of the unit.
4.
Check voltage and polarity at terminal block.
COMMUNICATION WIRING
FIG. 3-14
Connect the wiring to the desired outputs and/or serial port. Fig. 3-14
1.
2. For 4-20 mA outputs, LOOP1 will be set to Haze and LOOP2 to specified color range unless otherwise noted. To
change selected ranges see pg. 14 of this manual.
The RS485 serial port can be used for X,Y,Z data or MODBUS (see pg. 17 of this manual).
3.
4. When wiring is complete ensure that the lid is properly placed back in place and that all bolts are tightened.
CHAMANUAL 0917
POWER IN
LED2
KAM CHA
3939 Ann Arbor Drive
Houston, Texas
77063, USA
+1 713 784 0000
www.KAM.com
4-20 mA
Connections
13
Serial Port
KAM CONTROLS, INC.