Grundfos MGE 71 - R100 Installation Menu: Temperature Inputs and Ramps

English (GB)
26
Pt100/1000 input 1 and 2, Function
The Pt100/1000 inputs can be set to these functions:
• Not active
• Feedback sensor
• Ext. setpoint infl.
For further description, see section 9. External setpoint signal.
• Other function.
The number of available displays depends on the functional
module fitted in the motor. See below.
Pt100/1000 input 1 and 2, Measured parameter
The Pt100/1000 inputs can be set to these measured parameters:
• Liquid temp.
• Temperature 1
• Temperature 2
• Ambient temp.
• DE bearing temp.
• NDE bearing temp.
The number of available displays depends on the functional
module fitted in the motor. See below.
Operating range
Set the operating range as follows:
• Set the min. speed within the range from fixed min. speed to
user-set max. speed.
• Set the max. speed within the range from user-set min. speed
to fixed max. speed.
The range between the user-set min. and max. speeds is the
operating range. See fig. 30.
Fig. 30 Example of min. and max. settings
Ramps
The setting of ramps is only relevant in the case of open-loop
operation.
The ramps determine how quickly the motor can accelerate and
decelerate, respectively, during start/stop or setpoint changes.
The following can be set:
• acceleration time, 0.1 to 300 s
• deceleration time, 0.1 to 300 s.
The times apply to the acceleration from stop to rated speed and
the deceleration from rated speed to stop, respectively.
At short deceleration times, the deceleration of the motor may
depend on load and inertia as there is no possibility of actively
braking the motor.
If the power supply is switched off, the deceleration of the motor
will only depend on load and inertia.
Function (terminal) FM 100 FM 200 FM 300
Pt100/1000 input 1, Function
(17 and 18)
--●
Pt100/1000 input 2, Function
(19 and 18)
--●
Function (terminal) FM 100 FM 200 FM 300
Pt100/1000 input 1, Measured
parameter (17 and 18)
--●
Pt100/1000 input 2, Measured
parameter (19 and 18)
--●
TM00 6785 5095
Max. speed (fixed)
User-set max. speed
Operating range
User-set min. speed
Min. speed (fixed)
24 %
12 %
0 %
67 %
100 %