Grundfos CIU 501 Instructions

English (GB)
23
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: The availability of these measurements requires that the data
register 00302 VolumeFlow is available and that a differential
temperature measurement is established by one of the below
means:
MGE model H/I:
• Direct measurement, where an analog or temperature input
has been configured to Remote differential temperature
• PumpLiquidTemp (register 00322) measured by build in
Grundfos sensor and RemoteTemp2 (register 00337)
measured by analog or temperature input.
• RemoteTemp1 (register 00320) and RemoteTemp2
(register 00337) measured by analog or temperature input.
MAGNA3:
For the calculation an estimated flow value and measurement of
the liquid temperature by the build-in temperature sensor is used.
Connection of an external temperature sensor is needed for the
pump to calculate the needed differential temperature.
00337 RemoteTemp2
Temperature at external temperature
sensor 2.
0.01 K H + S - 3 + S
00338 UserSetpoint User-selected setpoint. 0.01 % ●●●
00339 Diffpressure Pressure between pump flanges. 0.001 bar H + S - 3
00340 OutletPressure Pressure at pump outlet. 0.001 bar H + S - -
00341 RemotePressure2
Pressure measured by external
sensor 2.
0.001 bar H + S - -
00342 LoadPercent
Motor current in percent of rated
motor current.
0.01 % H - 3
00343
00344
PumpUNIX_RTC_HI
PumpUNIX_RTC_LO
Pump time and date in UNIX format
(seconds since 01-01-1970 00:00:00).
1 s H - 3
00345 MaxFlowLimit Actual maximum flow limit. 0.1 m
3
/h H - 3
00346 RemoteDiffTemp Remote differential temperature. 0.01 K H + S - -
00347 InletDiffPressure Inlet differential pressure. 0.001 bar H + S - -
00348 OutletDiffPressure Outlet differential pressure. 0.001 bar H + S - -
00349 RemoteDiffPressure Remote differential pressure. 0.001 bar H + S - -
00350 StorageTankLevel Storage tank level. 0.01 m H + S - -
00351 AmbientTemp Ambient temperature. 0.01 K H + S - -
00352
00353
HeatEnergyCounter_HI
►
HeatEnergyCounter_LO
►
Total accumulated heat energy in
pump life time
1kWh H + S - 3
00354
00355
HeatPower_HI
►
HeatPower_LO
►
Actual heat power 1 W H + S - 3
00356 HeatDiffTemp
►
Differential temperature between
forward and return pipe used for heat
calculation.
0.01 K H + S - 3
Address Register name Description Scale 0.25 - 7.5 kW 11-22 kW + CUE
MAGNA/
UPE
Note
A data value of 0xFFFF indicates "not available".
Note
Estimated flow can be used for monitoring
purposes only, but it is not recommended for
controlling purposes.

Grundfos CIU 501 Specifications

General

Brand	Grundfos
Model	CIU 501
Category	Controller
Language	English