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"Detection delay"
You can set a detection delay which ensures that the monitored
parameter stays above or below a set limit in a set time before the
function is activated.
"Resetting delay"
The resetting delay is the time from which the measured
parameter differs from the set limit including the set hysteresis
band and until the function is reset.
Example
The function is to monitor the outlet pressure of a pump. If the
pressure is below 5 bar for more than 5 seconds, a warning must
be given. If the outlet pressure is above 7 bar for more than 8
seconds, you must reset the warning.
1
2
4
4
5
Fig. 52 "Limit exceeded" (example)
Pos.
Setting parameter
1
Measured
2
"Limit"
3
"Hysteresis band"
4
"Limit exceeded when"
5
"Detection delay"
6
"Resetting delay"
A
Limit-exceeded function active
-
"Action"
Factory setting
See section
28. Factory
settings.
11.18 "Pulse flowmeter setup"
Pump variant
NBE, NBSE, NKE, TPE, TPED
NBE, NBSE, NKE, TPE, TPED
Series 2000
You can connect an external pulse flowmeter to one of the digital
inputs in order to register the actual and accumulated flows.
Based on this, you can also calculate the specific energy.
To enable a pulse flowmeter, set one of the digital-input functions
to Accumulated flow and set the pumped volume per pulse. See
Digital inputs
section
.
11.10
Factory setting
See section
28. Factory
settings.
3
A
Time [s]
6
Setting
"Outlet pressure"
5 bar
2 bar
"Below limit"
5 seconds
8 seconds
-
"Warning"
"Pulse flowmeter setup"
●
●
11.19 "Ramps"
Pump variant
NBE, NBSE, NKE, TPE, TPED
NBE, NBSE, NKE, TPE, TPED
Series 2000
The ramps determine how quickly the motor can accelerate and
decelerate, respectively, during start-stop or setpoint changes.
You can set the following:
•
acceleration time, 0.1 to 300 seconds
•
deceleration time, 0.1 to 300 seconds.
The times apply to the acceleration from 0 rpm to fixed maximum
speed and the deceleration from fixed maximum speed to 0 rpm.
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
only depends on load and inertia.
Speed
Fixed
maximum
User set
maximum
User set
minimum
0
Fixed initial ramp
User set ramp-up
Fig. 53 Ramp-up and ramp-down
Factory setting
See section
28. Factory
settings.
11.20 "Standstill heating"
Pump variant
NBE, NBSE, NKE, TPE, TPED
NBE, NBSE, NKE, TPE, TPED
Series 2000
You can use this function to avoid condensation in humid
environments. When you set the function to "Active" and the
pump is in operating mode Stop, a low AC voltage is applied to
the motor windings. The voltage is not high enough to make the
motor rotate but ensures that sufficient heat is generated to avoid
condensation in the motor including the electronic parts in the
drive.
Remember to remove the drain plugs and fit a cover
over the motor.
"Ramps"
●
●
Time
Fixed final ramp
User set ramp-down
"Standstill heating"
●
●
39
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