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Valve outputs | Command value limit
Object polarity
If a command value fault is identified, then the actuator can optionally transmit a fault
telegram via the object "Command value - Fault - Status". This parameter defines
the telegram polarity of the fault telegram.
This parameter is only available if command value monitoring is enabled.
Cyclical transmission in the case of faulty
command value
If a command value fault is identified, then the actuator can optionally transmit the
fault telegram cyclically. Here, the cyclical transmission of the fault telegram can be
enabled as required ("Yes" setting).
This parameter is only available if command value monitoring is enabled.
9.5.2 Objects for command value monitoring / emergency operation
Function: Command value monitoring
Object no.
25, 40, 55,
70, 85, 100
1-bit output object to signal a faulty command value (with active command value
monitoring, no command value telegram was received within the monitoring time).
The telegram polarity can be configured.
Immediately after the bus voltage return or an ETS programming operation, the ob-
ject "Command value fault" does not transmit the status automatically. A faulty com-
mand value must be detected again (expiry of the monitoring time without a com-
mand value telegram) for the object value to be transmitted. This is also the case if a
saved emergency operation was restored after a device reset.
9.6
Command value limit
Enabling the command value limit
The command value limit can only be used if it has been enabled in the ETS.
￭
Set the parameter "Command value limit" on the parameter page "VOx - Gen-
eral - Enabled functions" to "yes".
The command value limit is enabled. The "Activation" parameter defines
whether the limiting function can be activated or deactivated as required via a
communication object. Alternatively, the command value limit can be perman-
ently active.
￭
Set the parameter "Command value limit" to "no".
The command value limit is not available.
Heating actuator 6-gang with controller | Order no. 2139 00 | 21393100
Function
Command value -
Fault - Status
1 = fault / 0 = no fault /
0 = fault / 1 = no fault
Checkbox (yes / no)
Name
VO x - Output (x =
1...6)
Type
DPT
Flag
1-bit
1,005
C, R, -, T, -
Page 85 of 257
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