5-5
Overview, Cont.
Table 5–1 Visual Alarm Codes, Cont.
Indicator Description Alarm?
Communication Protocols, Cont.
!
Nak. Negative Acknowledgement w/packet list.
N
+
Ack. Positive Acknowledge of receipt of request.
N
Waiting for Ack. Waiting for response after transmission.
N
?
Exception Alarm Processing.
N
ID Recognized. Recognized and receiving request.
N
Listen Cycle. Flashes if this remote port is active and running
Totalflow Remote Protocol. Flashes in sync with listening cycle
that occurs at 1, 2 or 4 second intervals.
N
M
MODBUS ASCII: MODBUS ASCII protocol selected for the port
assigned to this annunciator.
N
m
MODBUS RTU: MODBUS RTU protocol is selected for the port
assigned to this annunciator.
N
L
Local Protocol. Displayed when PCCU port is active and running
Totalflow Local Protocol.
N
¥
ID Recognized. The ID has been recognized but is waiting for
“Sync”.
N
Troubleshooting a Blank LCD Screen
When the Liquid Crystal Display is blank, this means that the unit has entered Sleep Mode.
This generally indicates the battery voltage has dropped below 10.9 VDC.
Instructions
Step
Procedure
1.
Make a local connection with the
XRC. This wakes up the unit so
that you may check all alarm conditions and determine the
problem.
2.
Check battery pack cable. It must make a good secure electrical
connection with the Main Board BAT CONN connector J16 (see
Figure 5–3).
3.
Check battery pack cable is securely connected.
4.
Check battery pack voltage. If voltage is low, replace with another
battery pack.
Continued on Next Page
Содержание XRC6490
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Страница 19: ...1 5 Standard Enclosure Cont RC 6790 X Figure 1 2 Model XRC6790 Continued on Next Page ...
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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Страница 112: ...5 24 12V Communication Supply Voltage Test Cont Figure 5 9 XRC 195 Communication Wiring ...
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