Grundfos MGE motors Serie Instrucciones De Instalación Y Funcionamiento página 51

Example
The figure shows how you can use the digital inputs to set seven predefined setpoints. Digital input 2 is open, and digital inputs 3 and 4 are
closed. If you compare with the table above, you can see that Predefined setpoint 6 is activated.
DI 4
7
DI 3
6
DI 2
SP
A
1
0
Stop
Pos.
DI
SP
SP
A
SP
N
Stop
If all digital inputs are open, the motor stops or runs at the normal setpoint. Set the desired action with Grundfos GO Remote or with the
advanced operating panel.
Related information
6.8 "Digital inputs"
6.49 Priority of settings
6.16 "Limit-exceeded function"
Use this function to monitor a measured parameter or one of the internal values such as speed, motor load or motor current. If a set limit is
reached, a selected action can take place. You can set two limit-exceeded functions, meaning that you can monitor two parameters or two
limits of the same parameter simultaneously.
The function requires setting of the following parameters:
Measured
Set the measured parameter to be monitored.
Limit
Set the limit which activates the function.
Hysteresis band
Set the hysteresis band for when the function must be deactivated again.
Limit exceeded when
Set the function to be activated when the selected parameter exceeds or drops below the set limit.
• above limit
The function is activated if the measured parameter exceeds the set limit.
• below limit
The function is activated if the measured parameter drops below the set limit.
Action
If the value exceeds a limit, you can set an action. The following actions are available:
• Not active
The pump remains in its current state. Use this setting if you only want to activate a signal relay output when the limit is reached.
• Stop
The pump stops.
• Min.
The pump reduces the speed to minimum speed.
• Max.
The pump increases the speed to maximum speed.
• User defined speed
The pump runs at a speed set by the user.
• Alarm and Stop
An alarm is given and the pump stops.
• Alarm And Min
An alarm is given and the pump decreases the speed to a minimum.
SP 7
SP 6
5
SP 5
4
SP 4
3
SP 3
2
SP 2
SP 1
SP
N
Description
Digital input
Setpoint
Actual setpoint
Normal setpoint
Stop
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