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Siemens Building Technologies
Commissioning instructions OZW775 V2.01
CE1C5663en
HVAC Products
Parameterize OZW775
22.06.2012
Command sequence: Commissioning > Extra configuration > Faults
Data point
Explanation, example
Fault button external
Default val: ---
Setting val:
---, N.X1…N.X8
N.D1…N.D8
Setting value N.X_ or N.D_ connects "Fault
button external" of FB "Faults" to the terminal
input to which the operation status contact is
connected.
The faults button, e.g. manual button on the
panel front, allows you to acknowledge faults
similar to the "Ack" button on the central
communication unit.
–
Fault input 1…20
Default val: ---
Setting val:
---, N.X1…N.X8
N.D1…N.D8
Setting value N.X_ or N.D_ connects fault input
1…20 of FB "Faults" to the terminal input to
which the fault source, e.g. limit value (analog),
frost (digital), is connected.
–
Fault relay 1…2
Default val:
Fault relay 1: N.Q1
Fault relay 2: N.Q2
Setting val: ---, N.Q1, N.Q2
(or N.Q3, N.Q4, N.Q7, N.Q8 if
not used by [Time switch 1…4]
relay)
Relay output N.Q1 is preconfigured for fault
relay 1, and N.Q2 for fault relay 2.
Setting value "---" does not control a relay
output N.Q_.
By default, relay contact N.Q1 indicates "Fault
local" (acoustic) and N.Q2 "Faults system"
(acoustic).
–
Command sequence: Commissioning > Extra configuration > Message receiver
Data point
Explanation, example
Message inhibition
Default val: ---
Setting val: ---, N.X1…N.X8
N.D1…N.D8
Setting value N.X_ or N.D_ connects message
suppression of FB "Message receiver" to the
terminal input to which the message
suppression button is connected.
Setting value "---" is used to configure "No
message inhibition".
–
If DP "Message inhibition" is connected to an N.X_ or N.D_ terminal input, assign "Message inhibition"
under DP "Name" to the input to provide for clear identification.
The following applies to the input states:
•
State "0" => messages are not inhibited.
•
State "1" => All messages are suppressed; i.e. they are not generated and, as a result, cannot be
sent after message inhibition is cancelled.
Faults
Message receiver