Grundfos NBE Series - 7.9 Pt100;1000 inputs; 7.10 Digital inputs

7.9 Pt100/1000 inputs
Pump variant Pt100/1000 inputs
NBE, NKE, NBSE, VLSE ●
NBE, NKE, NBSE Series
2000; VLSE with
Delta ρ sensor
●
The inputs and outputs available depend on the functional module
fitted in the motor.
Functional
module
Pt100/1000 input 1
(Terminals PT1, GND)
Pt100/1000 input 2
(Terminals PT2, GND)
FM310 • •
FM311 • •
Wiring example:
TM083189
Pt100/1000
To set the input, choose one of the below settings.
Function You can set the inputs to these functions:
• Not active
• Feedback sensor
The sensor is used for the selected control mode.
• Setpoint influence
The input signal is used for influencing the setpoint.
• Other function
The sensor input is used for measurement or monitoring.
Measured parameter
Select one of the below parameters to be measured in the system
by the sensor connected to the input.
TT
TT
TT
DTT
4 3
1 2
TM064012
Pos.
Sensor function/measured parameter
1 Liquid temp.
2 Temperature 1
3 Temperature 2
4 Differential temp.
Not shown Ambient temp.
Measuring range
-58 to 399 °F (-50 to +204 °C).
7.10
Digital inputs
Pump variant Digital inputs
NBE, NKE, NBSE, VLSE ●
NBE, NKE, NBSE Series
2000; VLSE with
Delta ρ sensor
●
The inputs and outputs available depend on the functional module
fitted in the motor.
Functional
module
Digital input 1
(Terminals DI1, GND)
Digital input 2
(Terminals DI2, GND)
FM310 • •
FM311 • •
Wiring example:
TM083186
Digital input
To set the input, make the settings below:
Function
You can set the inputs to these functions:
• Not active
When set to Not active, the input has no function.
• Ext. stop
When the input is deactivated, open circuit, the motor stops.
• Min. (minimum speed)
When the input is activated, the motor runs at the set minimum
speed.
• Max. (maximum speed)
When the input is activated, the motor runs at the set maximum
speed.
• User defined speed
When the input is activated, the motor runs at a speed set by
the user.
• External fault
When the input is activated, a timer is started. If the input is
activated for more than 5 seconds, the motor stops and a fault is
indicated. The function depends on input from external
equipment.
• Alarm resetting
When the input is activated, a fault indication, if any, is reset.
• Dry running
When this function is selected, a lack of inlet pressure or water
shortage (dry running) can be detected. When this happens, the
pump stops. The pump cannot restart as long as the input is
activated. This requires the use of an accessory such as these:
- a pressure switch installed on the inlet side of the pump
- a float switch installed on the inlet side of the pump.
• Accumulated flow
When this function is selected, the accumulated flow can be
registered. This requires the use of a flowmeter which can give
a feedback signal as a pulse per defined volume of water.
• Reverse rotation
This function reverses the direction of rotation of the motor.
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English (US)