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1A95107NPT 05/2012
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DYNAMIC SELF BALANCING
CONTROL VALVE
FlowCon SM with BACnet actuator
- 8 -
Problem solving.
In case there is any problem with the actuator
and/or valve, pls. start with these procedures:
Verify that none of the actuator’s objects are
out-of-service (all out-of-service values are
false).
Check actuator state in MSV.45. If MSV.45=5
check which alarm(s) have been activated
and try to resolve the alarm issue(s).
Check all wiring to ensure that no loose con-
nections are interrupting the signals.
Restart the actuator (cut power for a moment).
If the actuator has failsafe (SM.0.0.0.6), pls.
make sure that the failsafe action is completed
and the actuator is shut off before restoring
power.
Auto-stroke.
Trigger an auto-stroke sequence to re-cali-
brate the valve’s closing point, by setting
BV.63=1. The auto-stroke function will close
the valve, then open the valve to fully open
(regardless of chosen maximum flow) and
return to the position specified by the control
signal input. Please note that in cases where
MSV.40=3 (control signal type is digital), the
actuator finish the auto-stroke sequence in
fully open position regardless of the chosen
maximum flow. In these cases the auto-stroke
sequence should be followed by giving the
actuator control signal to close until the current
flow rate is at or lower than the maximum flow
rate.
The auto-stroke sequence cannot be can-
celled. While the auto-stroke sequence is
running; the actuator state will be MSV.45=4.
When the auto-stroke sequence is complete,
the state of the auto-stroke object will return
to disabled: BV.63=0 and the actuator state
will return to normal: MSV.45=1.
Failsafe mode (only SM.0.0.0.6).
If the power supply is out of range or lost,
failsafe mode will be activated:
1. BV.59=1 and MSV.45=5, there is a delay
on approximately 60 sec.
2. BV.59=1 and MSV.45=6, the actuator
opens/closes the valve (according to fail-
safe direction chosen in BV.18).
3. Actuator shuts off.
If the power supply is restored during 1. or 2.,
failsafe mode is deactivated.
BACnet fallback function.
If MSV.40=4 (control signal type is BACnet),
the BACnet fallback function is activated:
1. When AV.141 is written to, a time counter
starts.
2. If the counter reaches the value of AV.143,
the action from MSV.43 starts. BV.62=1.
3. When AV.141 is written to the next time,
the counter is reset and re-started. BV.62=0.
Please note, that the actuator state does not
go into alarm mode (MSV.45≠5) when the
BACnet fallback action is activated (BV.62=1).
If no BACnet fallback action is wanted, please
choose MSV.43=2.
General.
Water must always be suitable treated, clean
and free of debris. It is recommended that a
strainer be installed prior to the valve body to
prevent damage or blockage due to debris.
Ensure that the valve is not in the fully closed
position when filling the system with water.
Further, it is recommended not to exceed
maximum differential pressure control range.
Warranty obligation.
Failure to abide by all recommendations as
per this installation and operation instruction
will void warranty.
Do not remove cover from actuator. Opening
cover will void warranty.
When manually operating the valve (actuator
disconnected) do not use more than 10 Nm
torgue. Using more than 10 Nm torgue will void
warranty.
(100 pages)
(52 pages)
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