Product Range; Functions; Factory Settings - Grundfos MP 204 Instrucciones De Instalación Y Funcionamiento

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5. Product range

MP 204
external current transformers up to 1000 A.

6. Functions

Phase-sequence monitoring
indication of current or temperature (user
selection)
input for PTC/thermal switch
indication of temperature in °C or °F (user
selection)
4-digit, 7-segment display
setting and status reading with Grundfos GO
Remote
setting and status reading via GENIbus.
Tripping conditions
Overload
underload (dry running)
temperature (Tempcon sensor, PTC/thermal
switch and Pt sensor)
missing phase
phase sequence
overvoltage
undervoltage
power factor (cos φ)
current unbalance.
Warnings
Overload
underload
temperature (Tempcon, see section
12.2 Submersible
pumps, and Pt sensor)
overvoltage
Undervoltage
power factor (cos φ)(in connection with single-
and three-phase connection)
run capacitor (single-phase operation)
start capacitor (single-phase operation)
loss of communication in network
harmonic distortion.
Learning function
Phase sequence (three-phase operation)
run capacitor (single-phase operation)
start capacitor (single-phase operation)
identification and measurement of Pt100/Pt1000
sensor circuit.

6.1 Factory settings

Current limit: 0 A
Nominal voltage: 400 V
Class: P (trip delay: 5 seconds)
Trip delay: 5 seconds
Number of phases: 3, non-earthed
Power-on delay: 5 seconds Learning function: Active
Active trip limits
Overload according to class
Underload: - 40 %
Overvoltage: + 20 %
Undervoltage: - 20 %
Phase-sequence monitoring
Current unbalance: 10 %
PTC/thermal switch
The overvoltage and undervoltage trip
limits are deactivated automatically if the
temperature monitoring with Tempcon or
Pt100/Pt1000 is set to active.
Active warnings
Run capacitor, low: - 50 %
Start capacitor, low: - 50 %
7

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