Delta CS64A - Manual (Page 10)

10
3. Wiring the CS64A
The CS64A requires a 24Vdc power source capable of supplying 100mA. It should be a
linear power supply and not be used to supply other loads. A 250mA fast blow fuse
should be used between the power supply and the sensor.
The power supply voltage must be maintained within 5% (22.8 to 25.2V) at the sensor.
A P6KE30A Transzorb protects against overvoltage and reverse voltage. This device
limits the working voltage to a maximum of 25.6 volts. On the other hand, voltages
below 5% may cause the light intensity to be reduced and calibration to be lost.
Delta recommends connecting the CS64A's 24V power supply common to the CS64A's
enclosure (as shipped), so the power supply should be isolated and not connected to
ground at any other point.
A five pair, shielded, 0.3" max OD cable, (Alpha 5475C or Consolidated 5775) will fit
the CS64A strain relief and will be adequate for most environments up to about 20 feet.
For longer distances or noisy environments, heavier gauge wire and better shielding may
be required.
The analog output wire pairs should be connected to differential inputs for best noise
performance.
The CS64A uses 45 degree terminal blocks that are accessed by removing the top cover.
Insert the cable through the strain relief before connecting to the terminal blocks.
Block Terminal Signal
TB1
+24 Power Supply Positive
TB1 CMN Circuit Common (PS and Outputs)
TB1 CMN Circuit Common (PS and Outputs)
TB1 GND Enclosure Ground*
TB2 1 Blue: Color 1 Output
TB2 2 NIR: Color 2 Output
TB2 3 Red: Color 3 Output
TB2 4 Green: Color 4 Output
*The CS64A is shipped with a jumper wire between the GND and CMN terminals,
connecting the circuit common to enclosure ground. This is the recommended grounding
for lowest electrical noise. To isolate the circuit common from ground, remove this
jumper.