GE Industrial Solutions CPS6000 - Manual (Page 47)

CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 21 January 2008
47
Thermal Compensation Connections
Thermal Compensation
The optional QS837A VT-Probes are used to measure battery temperature for slope thermal
compensation, and to measure battery voltage for battery voltage imbalance detection when
the Voltage Monitoring Module 108958422 card is used. There is a maximum 18 probes.
Note: The number of probes per string is to be defined by the user. Typical installation
requires 1 thermal probe per string of batteries.
Refer to Section 11 Peripheral Devices for more details about Voltage/Thermal Probes and
the Remote Voltage Monitoring Module if required.
Note: Do Not mount the VT-Probe under a lug or battery strap. The probe mounts on
top of the - lug or battery strap.
Note: Probes can be mounted prior to making the connections at the controller.
Step Action
1. Is the Voltage Monitoring option being used?
2. No - Locate the 848719795 Thermal
Probe Cable. Near the 3 Pin
connector (Probe end), the volt sense
wire has a 1 Pin connector on the
end, cut and discard this wire and
insulate the trimmed end. Yes - Connect the 848652947 Battery
Voltage Monitor Cable between the
ES771A Battery Voltage Monitor Card
and the controller P5- SYS AUX PORT
connector. See Figure 5-10.
3. Connect the 3 Pin Connector into the 3 position plug on the VT-Probe.
4. Connect the other end of the Thermal Probe Cable to the controller P5- SYS AUX
PORT connector. See Figure 5-8.
5. Are additional VT-Probes being used?
6. Yes - Using a interconnect cable
connect the 2 pin connector to the
first thermal probe and then connect
the next probe with the 3 pin
connector, daisy chain until all probes
are connected. See Figure 5-8.Two
interconnect cables are available;
• 5 foot cable 848719803
• 10 foot cable 848719811
No - Complete.
7. Attach probe case to each VT-Probe making sure the case pin inserts into the hole
on the probe. Close the case and verify the case is securely latched. See
Figure 5-9.