9
IQ Power HL Sensor
5201252 Rev. A
NOTE
– Turn line voltage power off at IQ Power Control Station before
connecting / disconnecting any devices. This is to avoid potential equipment
failure and ensure proper digital communication.
1. Ground IQ Power HL Sensor by connecting ground lead between ground terminal on
end of sensor assembly and a good electrical machine ground.
2. Connect sensor to Intrinsic Safety Barriers. Cut sensor cable to length at barriers
allowing enough excess to make connections with barriers. NOTE: Best practice is
to shorten cable as much as practical to provide best possible digital signal integrity.
(DO NOT discard remaining cable as it will be used to connect barriers to Sensor
Interface).
Split twin cable from sensor approximately 6” (150 mm). Carefully remove 4”
(100mm) of jacket from each cable. Remove foil shield and trim off, using care not
to cut bare ground wire.
Strip red and black wires as required by barrier manufacturer for connection to
barrier. Connect each cable to the HAZ side of the appropriate barrier; see Figure 3,
Control Drawing 5150010. Note that one cable from sensor has a red jacket; this is
the cable that carries power to the sensor. The other cable, with a black jacket, carries
digital communications to and from the sensor.
3. Connect Intrinsic Safety Barriers to Sensor Interface using remnant of sensor cable
from above step.
Split twin cable approximately 6” (150 mm). Carefully remove 4” (100 mm) of jacket
from each cable. Remove foil shield and trim off, using care not to cut bare ground wire.
Strip red and black wires as required by the barrier manufacturer for connection to the
barrier. Connect each cable to the SAFE side of the appropriate barrier; see Figure 3,
Control Drawing 5150010.
Split the twin cable approximately 4” (100mm). Carefully remove 2” (50 mm) of jacket
from each cable. Remove foil shield and trim off, using care not to cut bare ground wire.
Strip red and black wires ¼” (6-7 mm) and connect to Sensor Port terminal block on
Sensor Interface.
Figure 4 IQ Power HL Sensor Terminal Block Wiring