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11.16 Pump flow (standard range)
11.18 Remote flow
network output SNVT_flow_p nvoFlow;
network output SNVT_flow_f nvoRemoteFlowF;
This network variable output provides the flow through the pump
as measured or estimated by the pump controller.
This network variable output provides the flow measured
somewhere in the system with a flow sensor connected to
the pump.
If the maximum pump flow is higher than 650 m3/h, nvoFlowF
should be used as it offers an extended range.
Section 5. Considerations when installing the E-pump or Hydro
Multi-E provides more information on the coherence of nvoFlow
and nvoFlowF.
Valid range
0 to 655.34 m3/h (0.01 m3/h).
Valid range
-3.40282E38 to 3.40282E38 l/s.
The value of 3.40282E38 l/s is not used as a physical
representation of the flow, but represents invalid data and
indicates that the flow cannot be measured or that no remote-flow
sensor is connected.
The value of 0xFFFF (655.35 m3/h) represents invalid data and
indicates that the flow cannot be measured/estimated or that the
flow is higher than 650 m3/h.
If no remote-flow sensor is available in the system, nvoFlowF will
display a value of NaN (Not a Number).
When transmitted
This value is transmitted immediately when it has changed more
than 0.2 m3/h.
When transmitted
This value is transmitted immediately when it has changed
significantly. The significance depends on the pump type.
Product availability
•
For UPE Series 2000, the value must change more than
0.2 m3/h.
For product availability, see overview on page 36.
•
For GRUNDFOS MAGNA, the value must change more than
0.3 m3/h.
11.19 Pump speed
•
For TPE Series 1000/2000, the value must change more than
0.5 m3/h.
network output SNVT_rpm nvoSpeed;
This optional network variable output provides the pump speed.
Product availability
Valid range
For product availability, see overview on page 36.
0 to 65,534 rpm (1 rpm).
11.17 Pump flow (extended range)
The value of 0xFFFF (65,535 rpm) represents invalid data and
indicates that the speed cannot be measured/estimated.
network output SNVT_flow_f nvoFlowF;
When transmitted
This network variable output provides the flow through the pump
as measured or estimated by the pump.
This value is transmitted immediately when it has changed more
than 107 rpm.
If the maximum pump flow is lower than 650 m3/h, nvoFlow
should be used as it offers a higher resolution.
Section 5. Considerations when installing the E-pump or Hydro
Multi-E provides more information on the coherence of nvoFlow
and nvoFlowF.
Valid range
-3.40282E38 to 3.40282E38 l/s.
If no flow sensor is available in the system, nvoFlowF will display
a value of NaN (Not a Number).
When transmitted
This value is transmitted immediately when it has changed more
than 1 l/s.
Product availability
For product availability, see overview on page 36.
11.20 Pump override active
network output SNVT_switch nvoPumpOverride;
This optional network variable output provides the manual
override status of the pump. This variable has the value
"OVERRIDE" in the table below if the pump setpoint has been
overridden by one of the variables: nviOvdSpeed, nviOvdPress or
nviOvdStop.
Valid range
Product availability
State
Value
Equivalent percent
Requested operation
For product availability, see overview on page 36.
0
0
0
NORMAL
1
200
100
OVERRIDE
0xFF
n/a
n/a
Invalid value
When transmitted
This value is transmitted immediately when it has changed.
Product availability
For product availability, see overview on page 36.
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