Activate heater control unit monitoring
Information
If a heater system is installed within the actuator controls, heater monitoring is not
activated/deactivated via this parameter, but via parameter
Monitor heat. system
M0647
of the heater system.
Required user level:
Specialist (4)
.
Device configuration M0053
Actuator M0168
Heater monitor M0646
Default value:
Function not active
Setting values:
Function not active
Heater monitoring is deactivated.
Function active
Heater monitoring is activated. If the heater fails, a warning will be issued.
Information
Monitoring can only be made once the heater is activated (parameter
Heater control
unit
).
Set reaction time for heater monitoring
Heater monitoring will only respond once a fault persists longer than the set monitoring
time. Short-time faults occurring for less than the set monitoring time are not signalled
as warning.
Required user level:
AUMA (6)
.
Device configuration M0053
Actuator M0168
Heating sys. mon. time M0859
Default value:
300.0
seconds
Setting range:
60 ... 3600
seconds (1 minute to 1 hour)
10.10.
Verification of sub-assemblies
Conditions
●
Actuators with electronic control unit
Characteristics
The controls verify whether sub-assemblies mounted in actuators and controls
correspond to the desired version.
In case incorrect sub-assemblies are mounted or if sub-assemblies are missing the
controls either send a warning or a fault signal.
For detailed information on this indication refer to <Fault signals and warnings>
chapter.
10.11.
Phase failure monitoring
Conditions:
Phase failure monitoring is only valid for connections to 3-phase AC power supplies.
For versions with 1-phase AC or DC, phase failure monitoring is not possible.
Properties
The actuator controls monitor phase L2. If phase L2 is missing for a certain time
interval, the actuator controls can still send and receive signals and generate a fault
indication. Since the actuator controls are supplied via phases L1 and L3, the two
phases cannot be monitored. In case L1 or L3 fails, the actuator controls are
inoperable and the actuator stops.
Information
In case of L2 phase loss during motor operation, this does not necessarily lead to
an immediate standstill of the actuator. The reason is that the rotating motor generates
the missing phase itself. This leads, however, to a reduction of the motor output
torque. If the applied torque is sufficient for valve operation, the missing phase L2
is only detected when switching off (e.g. in an end position) and the
Phase fault
fault
signal is generated as a consequence.
113
Actuator controls
ACV 01.2/ACVExC 01.2 Profibus DP
Monitoring functions
