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Fault input 1...20
continued
Siemens Building Technologies
HVAC Products
Command sequence: Settings > Faults > Local > Fault input 1...20
Data point
Limit value fault on
Digital inputs N.D1...N.D8,
Universal inputs N.X1...N.X8
with Input identifier = Digital
Default val:
1
Setting val:
0, 1
Limit value fault off
Digital inputs N.D1...N.D8,
Universal inputs N.X1...N.X8
with Input identifier = Digital
Default val:
0
Setting val:
0, 1
1)
Limit value fault on
Universal inputs N.X1...N.X8
with Input identifier = °C
Default val:
30.0 °C
Setting val:
-50.0...500.0 °C,
Resolution 0.1 °C
°C applies to temperature values.
Other analog signals, such as
%, kJ/kg, m/s, bar, Pa can also
be monitored.
1)
Limit value fault off
Universal inputs N.X1...N.X8
with Input identifier = °C
Default val:
25.0 °C
Setting val:
-50.0...500.0 °C,
Resolution 0.1 °C
Fault status message delay
Default val:
00:05 mm:ss
Setting val:
00:00...59:55
Resolution 00:05
Fault acknowledgement
Default val:
None
Setting val:
None
Acknowledge
Fault priority
Default val:
Urgent
Setting val:
Urgent
Not urgent
1)
When 2 fault inputs "x" (from FB "Faults") are configured to fault input N.X_, an analog signal (e.g.
temperature) can be monitored for "Limit value high" and "Limit value low" and normal value range
between the values.
Commissioning instructions OZW775 V2.01
Parameterize OZW775
Explanation, example
At DP "Limit value fault on", fault status "1" is set
for the digital inputs.
If the fault source is connected to N.X1...N.X8,
the following setting is required:
"Input identifier > N.X_ = Digital".
At DP "Limit value fault off", fault status "0" is set
for the digital inputs.
If the fault source is connected to N.X1...N.X8,
the following setting is required:
"Input identifier > N.X_ = Digital".
DP "Limit value fault on" is displayed if an
analog signal (e.g. °C) is connected to universal
inputs N.X1...N.X8. A fault status message is
triggered when a limit value is violated.
Example: N.X3 is configured for temperature
monitoring (°C) and connected to fault input 1.
Configure the following:
"Input identifier > N.X3 = °C" and "Faults >
Fault input 1 = N.X3".
DP "Limit value fault off" is displayed if an
analog signal (e.g. °C) is connected to universal
inputs N.X1...N.X8. A fault status message is
when a limit value is violated.
The fault status message delay acts as a filter
for short-term fault events. You can set the time
the central communication unit should wait until
it begins to handle a fault.
Define at DP "Fault acknowledgement" if an
existing fault requires acknowledgement via
"Ack" button on the central communication unit.
Setting values "Urgent" and "Not urgent" are
used as a filter to send fault status messages.
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CE1C5663en
22.06.2012
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