5-18
TFIO Module Isolation Test, Cont.
Step Procedure,
Cont.
5.
Using DMM, measure Average Current. If equal to or greater than
80 ma at 12 VDC, disconnect Battery Pack, reconnect TFIO
Module Cable with one module connected, continue to next step.
6.
Using DMM, measure Average Current. Low Power TFIO
Modules generally do not draw over 0.30 ma at 12 VDC. If
Average Current drops less than or equal to .30 ma, disconnect
Battery Pack, connect one additional module. Repeat this step for
additional modules until all have been connected or equipment
fault has been located.
If power drain has not been located, return to Power
Troublshooting Flow Chart (see
Figure 5–4).
SLEEP Mode
The SLEEP mode is a safety feature, which maintains the RAM but discontinues data
measurement calculations and control functions. When the
XRC is in the SLEEP mode the
word SLEEP is displayed on the
LCD. If
XRC battery voltage falls below 11VDC,
the
XRC
enters SLEEP mode.
If battery voltage is still below 10.9 VDC, when you disconnect locally, the
XRC returns to
SLEEP mode. If battery voltage is above 11VDC,
XRC remains awake.
The
XRC has a "real time clock" which maintains time and date during the SLEEP mode
and writes an event record when entering and leaving the SLEEP mode.
Upon wake-up, the
XRC performs the following functions:
•
Stores present calculation periods accumulations in historical record,
•
Zeros present calculation periods accumulations and
•
End current daily record and start new daily record.
Step Procedure
1.
Connect locally to the
XRC. This should WAKE-UP the unit for
you to determine the cause
2.
Check battery pack cable. It must make a good secure electrical
connection with XRC-195 Board BAT CONN connector J16 (see
Figure 5–3
).
3.
If battery pack cable is securely connected, check battery pack
voltage. If voltage is low, replace with another battery pack.
Содержание XRC6490
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Страница 20: ...1 6 Standard Enclosure Cont 18 00 15 52 RC 6890 X 28 81 15 52 28 00 20 09 18 70 Figure 1 3 Model XRC6890 ...
Страница 24: ...1 10 XRC 195 Board Specifications Cont Figure 1 5 Complete View XRC 195 Board Continued on Next Page ...
Страница 41: ...1 27 Totalflow Input Output Modules Cont Figure 1 16 XRC6990 Inside View ...
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Страница 56: ...2 14 AC Charging Unit Installation Cont Figure 2 12 DC Wiring Instructions Figure 2 13 AC Wiring Instructions ...
Страница 63: ...2 21 XRC Communication Jumper Settings and Field Wiring Cont Figure 2 19 Other Field Wiring I O Connections ...
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Страница 86: ...4 12 Replacing XRC 195 Board Cont Figure 4 5 XRC Board Connections ...
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