Monitoring Functions; Special Functions; Communication; General Settings - Grundfos TPE 1000 Serie Notice D'installation Et De Fonctionnement

11.13.2 Predefined setpoints
Seven predefined setpoints can be set and activated by
combining the input signals to digital inputs 2, 3 and 4 as shown
in the table below.
Digital inputs
2 3 4
0 0 0
1 0 0
0 1 0
1 1 0
0 0 1
1 0 1
0 1 1
1 1 1

11.14 Monitoring functions

11.14.1 Limit-exceeded function
This function can monitor set limits of analog values. It will react if
the values exceed the limits. Each limit can be set as a maximum
or minimum value. For each of the monitored values, a warning
limit and an alarm limit must be defined.
The function makes it possible to monitor two different locations
in a pump system at the same time. For instance the pressure at
a consumer and the pump discharge pressure. This ensures that
the discharge pressure does not reach a critical value.
If the value exceeds the warning limit, a warning is given. If the
value exceeds the alarm limit, the pumps will be stopped.
A delay can be set between the detection of an exceeded limit
and the activation of a warning or an alarm. A delay can also be
set for resetting a warning or an alarm.
A warning can be reset automatically or manually.
It is possible to set whether the system is to restart automatically
after an alarm, or if the alarm must be reset manually.
Restarting can be delayed by an adjustable time. It is also
possible to set a start-up delay ensuring that the system reaches
a steady state before the function becomes active.

11.15 Special functions

11.15.1 Pulse flowmeter setup
An external pulse flowmeter can be connected to one of the
digital inputs in order to register the actual and accumulated
flows. Based on this, the specific energy (kWh/m
calculated.
To enable a pulse flowmeter, one of the digital-input functions
must be set to "Accumulated flow" and the pumped volume per
pulse must be set. See section 11.7
26
Setpoint
Normal setpoint
Predefined setpoint 1
Predefined setpoint 2
Predefined setpoint 3
Predefined setpoint 4
Predefined setpoint 5
Predefined setpoint 6
Predefined setpoint 7
3
) can also be
Digital inputs
.
11.15.2 Ramps
The setting of ramps is only relevant in the case of constant-curve
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.
Speed
Rated
Maximum
Minimum
Initial ramp
Ramp-up
Fig. 43 Ramp-up and ramp-down

11.16 Communication

11.16.1 Pump number
A unique number can be allocated to the pump. This makes it
possible to distinguish between pumps in connection with bus
communication.

11.17 General settings

11.17.1 Language
A number of languages are available.
Measuring units are automatically changed according to selected
language.
Time
Final ramp
Ramp-down