Application of qs873 vt probes, Figure 13: vt-probe connections to infinity ne – GE Industrial Solutions Pulsar Plus Controller User Manual

Page 94

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Pulsar Plus Controller Family

Issue 7 December 2011

94

J2
3-position connector connects the VT-Probe to the 1-Wire interface through cable 848719795. It may also
connect directly to the ES771A with (CC848791517, 2.5’) or (848719829, 10’) or other VT-Probes in daisy
chain fashion using either the (848719803, 5’) or the (848719811, 10’) cable.

J1
2-position connector serves to connect the VT-Probe to J2 on other VT-Probes in a daisy-chain fashion
described above.

Application of QS873 VT Probes

QS873 VT Probes can be used with or without mid-string voltage monitoring. Only one probe is required to
allow the battery slope thermal compensation function to be utilized. Additional probes for individual
battery or multiple string monitoring can be added as desired. The highest temperature measured from all
the probes is utilized by the controller. Although many systems come with the probes factory installed,
probes can be added or replaced in the field. The following figure depicts monitoring all batteries in a single
string without the use mid-string voltage monitors. Actual cables and connectivity may depend on true
system connect

Figure 13: VT-Probe Connections To Infinity NE


Following are basic steps when installing the temperature probes for Thermal Compensation without
Voltage Monitoring.

VT-Probe Connect to Controller

Step

Action

1

The QS873A weatherized VT-Probe is provided with 2-pin and 3-pin receptacles and a 1/4-inch
ring terminal. Insert the RJ-45 end of the 848719795 wire set into the P5- SYS AUX PORT on the
controller

2

Using voltage monitoring now or in the future?
No - Cut the brown voltage sense wire on the 848719795 at the 3-pin connector.
Yes - Insulate the end of the wire and secure it in the system for future use.

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